Merge branch 'master' into protobuf-exposition-format-support

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -60,8 +60,8 @@ body:
   
         For VictoriaMetrics health-state issues please provide full-length screenshots
         of Grafana dashboards if possible:
-          * [Grafana dashboard for single-node VictoriaMetrics](https://grafana.com/grafana/dashboards/10229/)
-          * [Grafana dashboard for VictoriaMetrics cluster](https://grafana.com/grafana/dashboards/11176/)
+          * [Grafana dashboard for single-node VictoriaMetrics](https://grafana.com/grafana/dashboards/10229)
+          * [Grafana dashboard for VictoriaMetrics cluster](https://grafana.com/grafana/dashboards/11176)
         
         See how to setup monitoring here:
           * [monitoring for single-node VictoriaMetrics](https://docs.victoriametrics.com/#monitoring)

Makefile

@@ -501,10 +501,12 @@ pprof-cpu:
 fmt:
 	gofmt -l -w -s ./lib
 	gofmt -l -w -s ./app
+	gofmt -l -w -s ./apptest
 
 vet:
 	go vet ./lib/...
 	go vet ./app/...
+	go vet ./apptest/...
 
 check-all: fmt vet golangci-lint govulncheck
 
@@ -525,6 +527,9 @@ test-full:
 test-full-386:
 	DISABLE_FSYNC_FOR_TESTING=1 GOARCH=386 go test -coverprofile=coverage.txt -covermode=atomic ./lib/... ./app/...
 
+integration-test: all
+	go test ./apptest/...
+
 benchmark:
 	go test -bench=. ./lib/...
 	go test -bench=. ./app/...

README.md

@@ -23,7 +23,7 @@ Here are some resources and information about VictoriaMetrics:
 - Available: [Binary releases](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest), [Docker images](https://hub.docker.com/r/victoriametrics/victoria-metrics/), [Source code](https://github.com/VictoriaMetrics/VictoriaMetrics)
 - Deployment types: [Single-node version](https://docs.victoriametrics.com/), [Cluster version](https://docs.victoriametrics.com/cluster-victoriametrics/), and [Enterprise version](https://docs.victoriametrics.com/enterprise/)
 - Changelog: [CHANGELOG](https://docs.victoriametrics.com/changelog/), and [How to upgrade](https://docs.victoriametrics.com/#how-to-upgrade-victoriametrics)
-- Community: [Slack](https://slack.victoriametrics.com/), [Twitter](https://twitter.com/VictoriaMetrics), [LinkedIn](https://www.linkedin.com/company/victoriametrics/), [YouTube](https://www.youtube.com/@VictoriaMetrics)
+- Community: [Slack](https://slack.victoriametrics.com/), [X (Twitter)](https://x.com/VictoriaMetrics), [LinkedIn](https://www.linkedin.com/company/victoriametrics/), [YouTube](https://www.youtube.com/@VictoriaMetrics)
 
 Yes, we open-source both the single-node VictoriaMetrics and the cluster version.
 
@@ -84,7 +84,7 @@ Some good benchmarks VictoriaMetrics achieved:
 Feel free asking any questions regarding VictoriaMetrics:
 
 * [Slack Inviter](https://slack.victoriametrics.com/) and [Slack channel](https://victoriametrics.slack.com/)
-* [Twitter](https://twitter.com/VictoriaMetrics/)
+* [X (Twitter)](https://x.com/VictoriaMetrics/)
 * [Linkedin](https://www.linkedin.com/company/victoriametrics/)
 * [Reddit](https://www.reddit.com/r/VictoriaMetrics/)
 * [Telegram-en](https://t.me/VictoriaMetrics_en)

app/victoria-metrics/testdata/graphite/subquery-aggregation.json

@@ -2,10 +2,10 @@
   "name": "subquery-aggregation",
   "issue": "https://github.com/VictoriaMetrics/VictoriaMetrics/issues/184",
   "data": [
-    "forms_daily_count;item=x 1 {TIME_S-1m}",
-    "forms_daily_count;item=x 2 {TIME_S-2m}",
-    "forms_daily_count;item=y 3 {TIME_S-1m}",
-    "forms_daily_count;item=y 4 {TIME_S-2m}"],
+    "forms_daily_count;item=x 1 {TIME_S-59s}",
+    "forms_daily_count;item=x 2 {TIME_S-1m59s}",
+    "forms_daily_count;item=y 3 {TIME_S-59s}",
+    "forms_daily_count;item=y 4 {TIME_S-1m59s}"],
   "query": ["/api/v1/query?query=min%20by%20(item)%20(min_over_time(forms_daily_count[10m:1m]))&time={TIME_S-1m}&latency_offset=1ms"],
   "result_query": {
     "status":"success",

app/vlinsert/elasticsearch/elasticsearch.go

@@ -103,7 +103,7 @@ func RequestHandler(path string, w http.ResponseWriter, r *http.Request) bool {
 		}
 		lmp := cp.NewLogMessageProcessor()
 		isGzip := r.Header.Get("Content-Encoding") == "gzip"
-		n, err := readBulkRequest(r.Body, isGzip, cp.TimeField, cp.MsgField, lmp)
+		n, err := readBulkRequest(r.Body, isGzip, cp.TimeField, cp.MsgFields, lmp)
 		lmp.MustClose()
 		if err != nil {
 			logger.Warnf("cannot decode log message #%d in /_bulk request: %s, stream fields: %s", n, err, cp.StreamFields)
@@ -133,7 +133,7 @@ var (
 	bulkRequestDuration = metrics.NewHistogram(`vl_http_request_duration_seconds{path="/insert/elasticsearch/_bulk"}`)
 )
 
-func readBulkRequest(r io.Reader, isGzip bool, timeField, msgField string, lmp insertutils.LogMessageProcessor) (int, error) {
+func readBulkRequest(r io.Reader, isGzip bool, timeField string, msgFields []string, lmp insertutils.LogMessageProcessor) (int, error) {
 	// See https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-bulk.html
 
 	if isGzip {
@@ -158,7 +158,7 @@ func readBulkRequest(r io.Reader, isGzip bool, timeField, msgField string, lmp i
 	n := 0
 	nCheckpoint := 0
 	for {
-		ok, err := readBulkLine(sc, timeField, msgField, lmp)
+		ok, err := readBulkLine(sc, timeField, msgFields, lmp)
 		wcr.DecConcurrency()
 		if err != nil || !ok {
 			rowsIngestedTotal.Add(n - nCheckpoint)
@@ -174,7 +174,7 @@ func readBulkRequest(r io.Reader, isGzip bool, timeField, msgField string, lmp i
 
 var lineBufferPool bytesutil.ByteBufferPool
 
-func readBulkLine(sc *bufio.Scanner, timeField, msgField string, lmp insertutils.LogMessageProcessor) (bool, error) {
+func readBulkLine(sc *bufio.Scanner, timeField string, msgFields []string, lmp insertutils.LogMessageProcessor) (bool, error) {
 	var line []byte
 
 	// Read the command, must be "create" or "index"
@@ -219,7 +219,7 @@ func readBulkLine(sc *bufio.Scanner, timeField, msgField string, lmp insertutils
 	if ts == 0 {
 		ts = time.Now().UnixNano()
 	}
-	logstorage.RenameField(p.Fields, msgField, "_msg")
+	logstorage.RenameField(p.Fields, msgFields, "_msg")
 	lmp.AddRow(ts, p.Fields)
 	logstorage.PutJSONParser(p)
 

app/vlinsert/elasticsearch/elasticsearch_test.go

@@ -15,7 +15,7 @@ func TestReadBulkRequest_Failure(t *testing.T) {
 
 		tlp := &insertutils.TestLogMessageProcessor{}
 		r := bytes.NewBufferString(data)
-		rows, err := readBulkRequest(r, false, "_time", "_msg", tlp)
+		rows, err := readBulkRequest(r, false, "_time", []string{"_msg"}, tlp)
 		if err == nil {
 			t.Fatalf("expecting non-empty error")
 		}
@@ -36,11 +36,12 @@ func TestReadBulkRequest_Success(t *testing.T) {
 	f := func(data, timeField, msgField string, rowsExpected int, timestampsExpected []int64, resultExpected string) {
 		t.Helper()
 
+		msgFields := []string{"non_existing_foo", msgField, "non_exiting_bar"}
 		tlp := &insertutils.TestLogMessageProcessor{}
 
 		// Read the request without compression
 		r := bytes.NewBufferString(data)
-		rows, err := readBulkRequest(r, false, timeField, msgField, tlp)
+		rows, err := readBulkRequest(r, false, timeField, msgFields, tlp)
 		if err != nil {
 			t.Fatalf("unexpected error: %s", err)
 		}
@@ -55,7 +56,7 @@ func TestReadBulkRequest_Success(t *testing.T) {
 		tlp = &insertutils.TestLogMessageProcessor{}
 		compressedData := compressData(data)
 		r = bytes.NewBufferString(compressedData)
-		rows, err = readBulkRequest(r, true, timeField, msgField, tlp)
+		rows, err = readBulkRequest(r, true, timeField, msgFields, tlp)
 		if err != nil {
 			t.Fatalf("unexpected error: %s", err)
 		}

app/vlinsert/elasticsearch/elasticsearch_timing_test.go

@@ -32,7 +32,7 @@ func benchmarkReadBulkRequest(b *testing.B, isGzip bool) {
 	dataBytes := bytesutil.ToUnsafeBytes(data)
 
 	timeField := "@timestamp"
-	msgField := "message"
+	msgFields := []string{"message"}
 	blp := &insertutils.BenchmarkLogMessageProcessor{}
 
 	b.ReportAllocs()
@@ -41,7 +41,7 @@ func benchmarkReadBulkRequest(b *testing.B, isGzip bool) {
 		r := &bytes.Reader{}
 		for pb.Next() {
 			r.Reset(dataBytes)
-			_, err := readBulkRequest(r, isGzip, timeField, msgField, blp)
+			_, err := readBulkRequest(r, isGzip, timeField, msgFields, blp)
 			if err != nil {
 				panic(fmt.Errorf("unexpected error: %w", err))
 			}

app/vlinsert/insertutils/common_params.go

@@ -1,6 +1,7 @@
 package insertutils
 
 import (
+	"flag"
 	"net/http"
 	"strings"
 	"sync"
@@ -16,13 +17,18 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/timeutil"
 )
 
+var (
+	defaultMsgValue = flag.String("defaultMsgValue", "missing _msg field; see https://docs.victoriametrics.com/victorialogs/keyconcepts/#message-field",
+		"Default value for _msg field if the ingested log entry doesn't contain it; see https://docs.victoriametrics.com/victorialogs/keyconcepts/#message-field")
+)
+
 // CommonParams contains common HTTP parameters used by log ingestion APIs.
 //
 // See https://docs.victoriametrics.com/victorialogs/data-ingestion/#http-parameters
 type CommonParams struct {
 	TenantID     logstorage.TenantID
 	TimeField    string
-	MsgField     string
+	MsgFields    []string
 	StreamFields []string
 	IgnoreFields []string
 
@@ -54,6 +60,10 @@ func GetCommonParams(r *http.Request) (*CommonParams, error) {
 	} else if msgf = r.Header.Get("VL-Msg-Field"); msgf != "" {
 		msgField = msgf
 	}
+	var msgFields []string
+	if msgField != "" {
+		msgFields = strings.Split(msgField, ",")
+	}
 
 	streamFields := httputils.GetArray(r, "_stream_fields")
 	if len(streamFields) == 0 {
@@ -89,7 +99,7 @@ func GetCommonParams(r *http.Request) (*CommonParams, error) {
 	cp := &CommonParams{
 		TenantID:        tenantID,
 		TimeField:       timeField,
-		MsgField:        msgField,
+		MsgFields:       msgFields,
 		StreamFields:    streamFields,
 		IgnoreFields:    ignoreFields,
 		Debug:           debug,
@@ -106,7 +116,9 @@ func GetCommonParamsForSyslog(tenantID logstorage.TenantID) *CommonParams {
 	cp := &CommonParams{
 		TenantID:  tenantID,
 		TimeField: "timestamp",
-		MsgField:  "message",
+		MsgFields: []string{
+			"message",
+		},
 		StreamFields: []string{
 			"hostname",
 			"app_name",
@@ -134,6 +146,8 @@ type logMessageProcessor struct {
 	stopCh        chan struct{}
 	lastFlushTime time.Time
 
+	tmpFields []logstorage.Field
+
 	cp *CommonParams
 	lr *logstorage.LogRows
 }
@@ -176,20 +190,15 @@ func (lmp *logMessageProcessor) AddRow(timestamp int64, fields []logstorage.Fiel
 		return
 	}
 
-	// _msg field must be non-empty according to VictoriaLogs data model.
-	// See https://docs.victoriametrics.com/victorialogs/keyconcepts/#message-field
-	msgExist := false
-	for i := range fields {
-		if fields[i].Name == "_msg" {
-			msgExist = len(fields[i].Value) > 0
-			break
-		}
-	}
-	if !msgExist {
-		rf := logstorage.RowFormatter(fields)
-		logger.Warnf("dropping log line without _msg field; %s", rf)
-		rowsDroppedTotalMsgNotValid.Inc()
-		return
+	if *defaultMsgValue != "" && !hasMsgField(fields) {
+		// The log entry doesn't contain mandatory _msg field. Add _msg field with default value then
+		// according to https://docs.victoriametrics.com/victorialogs/keyconcepts/#message-field .
+		lmp.tmpFields = append(lmp.tmpFields[:0], fields...)
+		lmp.tmpFields = append(lmp.tmpFields, logstorage.Field{
+			Name:  "_msg",
+			Value: *defaultMsgValue,
+		})
+		fields = lmp.tmpFields
 	}
 
 	lmp.lr.MustAdd(lmp.cp.TenantID, timestamp, fields)
@@ -205,6 +214,15 @@ func (lmp *logMessageProcessor) AddRow(timestamp int64, fields []logstorage.Fiel
 	}
 }
 
+func hasMsgField(fields []logstorage.Field) bool {
+	for _, f := range fields {
+		if f.Name == "_msg" {
+			return len(f.Value) > 0
+		}
+	}
+	return false
+}
+
 // flushLocked must be called under locked lmp.mu.
 func (lmp *logMessageProcessor) flushLocked() {
 	lmp.lastFlushTime = time.Now()
@@ -241,5 +259,4 @@ func (cp *CommonParams) NewLogMessageProcessor() LogMessageProcessor {
 var (
 	rowsDroppedTotalDebug         = metrics.NewCounter(`vl_rows_dropped_total{reason="debug"}`)
 	rowsDroppedTotalTooManyFields = metrics.NewCounter(`vl_rows_dropped_total{reason="too_many_fields"}`)
-	rowsDroppedTotalMsgNotValid   = metrics.NewCounter(`vl_rows_dropped_total{reason="msg_not_exist"}`)
 )

app/vlinsert/journald/journald.go

@@ -0,0 +1,256 @@
+package journald
+
+import (
+	"bytes"
+	"encoding/binary"
+	"flag"
+	"fmt"
+	"io"
+	"net/http"
+	"regexp"
+	"slices"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vlinsert/insertutils"
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vlstorage"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding/zstd"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logstorage"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/writeconcurrencylimiter"
+	"github.com/VictoriaMetrics/metrics"
+)
+
+const (
+	journaldEntryMaxNameLen = 64
+)
+
+var (
+	bodyBufferPool                bytesutil.ByteBufferPool
+	allowedJournaldEntryNameChars = regexp.MustCompile(`^[A-Z_][A-Z0-9_]+`)
+)
+
+var (
+	journaldStreamFields = flagutil.NewArrayString("journald.streamFields", "Journal fields to be used as stream fields. "+
+		"See the list of allowed fields at https://www.freedesktop.org/software/systemd/man/latest/systemd.journal-fields.html.")
+	journaldIgnoreFields = flagutil.NewArrayString("journald.ignoreFields", "Journal fields to ignore. "+
+		"See the list of allowed fields at https://www.freedesktop.org/software/systemd/man/latest/systemd.journal-fields.html.")
+	journaldTimeField = flag.String("journald.timeField", "__REALTIME_TIMESTAMP", "Journal field to be used as time field. "+
+		"See the list of allowed fields at https://www.freedesktop.org/software/systemd/man/latest/systemd.journal-fields.html.")
+	journaldTenantID             = flag.String("journald.tenantID", "0:0", "TenantID for logs ingested via the Journald endpoint.")
+	journaldIncludeEntryMetadata = flag.Bool("journald.includeEntryMetadata", false, "Include journal entry fields, which with double underscores.")
+)
+
+func getCommonParams(r *http.Request) (*insertutils.CommonParams, error) {
+	cp, err := insertutils.GetCommonParams(r)
+	if err != nil {
+		return nil, err
+	}
+	if cp.TenantID.AccountID == 0 && cp.TenantID.ProjectID == 0 {
+		tenantID, err := logstorage.ParseTenantID(*journaldTenantID)
+		if err != nil {
+			return nil, fmt.Errorf("cannot parse -journald.tenantID=%q for journald: %w", *journaldTenantID, err)
+		}
+		cp.TenantID = tenantID
+	}
+	if cp.TimeField != "" {
+		cp.TimeField = *journaldTimeField
+	}
+	if len(cp.StreamFields) == 0 {
+		cp.StreamFields = *journaldStreamFields
+	}
+	if len(cp.IgnoreFields) == 0 {
+		cp.IgnoreFields = *journaldIgnoreFields
+	}
+	cp.MsgFields = []string{"MESSAGE"}
+	return cp, nil
+}
+
+// RequestHandler processes Journald Export insert requests
+func RequestHandler(path string, w http.ResponseWriter, r *http.Request) bool {
+	switch path {
+	case "/upload":
+		if r.Header.Get("Content-Type") != "application/vnd.fdo.journal" {
+			httpserver.Errorf(w, r, "only application/vnd.fdo.journal encoding is supported for Journald")
+			return true
+		}
+		handleJournald(r, w)
+		return true
+	default:
+		return false
+	}
+}
+
+// handleJournald parses Journal binary entries
+func handleJournald(r *http.Request, w http.ResponseWriter) {
+	startTime := time.Now()
+	requestsJournaldTotal.Inc()
+
+	if err := vlstorage.CanWriteData(); err != nil {
+		httpserver.Errorf(w, r, "%s", err)
+		return
+	}
+
+	reader := r.Body
+	var err error
+
+	wcr := writeconcurrencylimiter.GetReader(reader)
+	data, err := io.ReadAll(wcr)
+	if err != nil {
+		httpserver.Errorf(w, r, "cannot read request body: %s", err)
+		return
+	}
+	writeconcurrencylimiter.PutReader(wcr)
+	bb := bodyBufferPool.Get()
+	defer bodyBufferPool.Put(bb)
+	if r.Header.Get("Content-Encoding") == "zstd" {
+		bb.B, err = zstd.Decompress(bb.B[:0], data)
+		if err != nil {
+			httpserver.Errorf(w, r, "cannot decompress zstd-encoded request with length %d: %s", len(data), err)
+			return
+		}
+		data = bb.B
+	}
+	cp, err := getCommonParams(r)
+	if err != nil {
+		httpserver.Errorf(w, r, "cannot parse common params from request: %s", err)
+		return
+	}
+
+	lmp := cp.NewLogMessageProcessor()
+	n, err := parseJournaldRequest(data, lmp, cp)
+	lmp.MustClose()
+	if err != nil {
+		errorsTotal.Inc()
+		httpserver.Errorf(w, r, "cannot parse Journald protobuf request: %s", err)
+		return
+	}
+
+	rowsIngestedJournaldTotal.Add(n)
+
+	// update requestJournaldDuration only for successfully parsed requests
+	// There is no need in updating requestJournaldDuration for request errors,
+	// since their timings are usually much smaller than the timing for successful request parsing.
+	requestJournaldDuration.UpdateDuration(startTime)
+}
+
+var (
+	rowsIngestedJournaldTotal = metrics.NewCounter(`vl_rows_ingested_total{type="journald", format="journald"}`)
+
+	requestsJournaldTotal = metrics.NewCounter(`vl_http_requests_total{path="/insert/journald/upload",format="journald"}`)
+	errorsTotal           = metrics.NewCounter(`vl_http_errors_total{path="/insert/journald/upload",format="journald"}`)
+
+	requestJournaldDuration = metrics.NewHistogram(`vl_http_request_duration_seconds{path="/insert/journald/upload",format="journald"}`)
+)
+
+// See https://systemd.io/JOURNAL_EXPORT_FORMATS/#journal-export-format
+func parseJournaldRequest(data []byte, lmp insertutils.LogMessageProcessor, cp *insertutils.CommonParams) (rowsIngested int, err error) {
+	var fields []logstorage.Field
+	var ts int64
+	var size uint64
+	var name, value string
+	var line []byte
+
+	currentTimestamp := time.Now().UnixNano()
+
+	for len(data) > 0 {
+		idx := bytes.IndexByte(data, '\n')
+		switch {
+		case idx > 0:
+			// process fields
+			line = data[:idx]
+			data = data[idx+1:]
+		case idx == 0:
+			// next message or end of file
+			// double new line is a separator for the next message
+			if len(fields) > 0 {
+				if ts == 0 {
+					ts = currentTimestamp
+				}
+				lmp.AddRow(ts, fields)
+				rowsIngested++
+				fields = fields[:0]
+			}
+			// skip newline separator
+			data = data[1:]
+			continue
+		case idx < 0:
+			return rowsIngested, fmt.Errorf("missing new line separator, unread data left=%d", len(data))
+		}
+
+		idx = bytes.IndexByte(line, '=')
+		// could b either e key=value\n pair
+		// or just  key\n
+		// with binary data at the buffer
+		if idx > 0 {
+			name = bytesutil.ToUnsafeString(line[:idx])
+			value = bytesutil.ToUnsafeString(line[idx+1:])
+		} else {
+			name = bytesutil.ToUnsafeString(line)
+			if len(data) == 0 {
+				return rowsIngested, fmt.Errorf("unexpected zero data for binary field value of key=%s", name)
+			}
+			// size of binary data encoded as le i64 at the begging
+			idx, err := binary.Decode(data, binary.LittleEndian, &size)
+			if err != nil {
+				return rowsIngested, fmt.Errorf("failed to extract binary field %q value size: %w", name, err)
+			}
+			// skip binary data sise
+			data = data[idx:]
+			if size == 0 {
+				return rowsIngested, fmt.Errorf("unexpected zero binary data size decoded %d", size)
+			}
+			if int(size) > len(data) {
+				return rowsIngested, fmt.Errorf("binary data size=%d cannot exceed size of the data at buffer=%d", size, len(data))
+			}
+			value = bytesutil.ToUnsafeString(data[:size])
+			data = data[int(size):]
+			// binary data must has new line separator for the new line or next field
+			if len(data) == 0 {
+				return rowsIngested, fmt.Errorf("unexpected empty buffer after binary field=%s read", name)
+			}
+			lastB := data[0]
+			if lastB != '\n' {
+				return rowsIngested, fmt.Errorf("expected new line separator after binary field=%s, got=%s", name, string(lastB))
+			}
+			data = data[1:]
+		}
+		// https://github.com/systemd/systemd/blob/main/src/libsystemd/sd-journal/journal-file.c#L1703
+		if len(name) > journaldEntryMaxNameLen {
+			return rowsIngested, fmt.Errorf("journald entry name should not exceed %d symbols, got: %q", journaldEntryMaxNameLen, name)
+		}
+		if !allowedJournaldEntryNameChars.MatchString(name) {
+			return rowsIngested, fmt.Errorf("journald entry name should consist of `A-Z0-9_` characters and must start from non-digit symbol")
+		}
+		if name == cp.TimeField {
+			ts, err = strconv.ParseInt(value, 10, 64)
+			if err != nil {
+				return 0, fmt.Errorf("failed to parse Journald timestamp, %w", err)
+			}
+			ts *= 1e3
+			continue
+		}
+
+		if slices.Contains(cp.MsgFields, name) {
+			name = "_msg"
+		}
+
+		if *journaldIncludeEntryMetadata || !strings.HasPrefix(name, "__") {
+			fields = append(fields, logstorage.Field{
+				Name:  name,
+				Value: value,
+			})
+		}
+	}
+	if len(fields) > 0 {
+		if ts == 0 {
+			ts = currentTimestamp
+		}
+		lmp.AddRow(ts, fields)
+		rowsIngested++
+	}
+	return rowsIngested, nil
+}

app/vlinsert/journald/journald_test.go

@@ -0,0 +1,70 @@
+package journald
+
+import (
+	"testing"
+
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vlinsert/insertutils"
+)
+
+func TestPushJournaldOk(t *testing.T) {
+	f := func(src string, timestampsExpected []int64, resultExpected string) {
+		t.Helper()
+		tlp := &insertutils.TestLogMessageProcessor{}
+		cp := &insertutils.CommonParams{
+			TimeField: "__REALTIME_TIMESTAMP",
+			MsgFields: []string{"MESSAGE"},
+		}
+		n, err := parseJournaldRequest([]byte(src), tlp, cp)
+		if err != nil {
+			t.Fatalf("unexpected error: %s", err)
+		}
+
+		if err := tlp.Verify(n, timestampsExpected, resultExpected); err != nil {
+			t.Fatal(err)
+		}
+	}
+	// Single event
+	f("__REALTIME_TIMESTAMP=91723819283\nMESSAGE=Test message\n",
+		[]int64{91723819283000},
+		"{\"_msg\":\"Test message\"}",
+	)
+
+	// Multiple events
+	f("__REALTIME_TIMESTAMP=91723819283\nMESSAGE=Test message\n\n__REALTIME_TIMESTAMP=91723819284\nMESSAGE=Test message2\n",
+		[]int64{91723819283000, 91723819284000},
+		"{\"_msg\":\"Test message\"}\n{\"_msg\":\"Test message2\"}",
+	)
+
+	// Parse binary data
+	f("__CURSOR=s=e0afe8412a6a49d2bfcf66aa7927b588;i=1f06;b=f778b6e2f7584a77b991a2366612a7b5;m=300bdfd420;t=62526e1182354;x=930dc44b370963b7\n__REALTIME_TIMESTAMP=1729698775704404\n__MONOTONIC_TIMESTAMP=206357648416\n__SEQNUM=7942\n__SEQNUM_ID=e0afe8412a6a49d2bfcf66aa7927b588\n_BOOT_ID=f778b6e2f7584a77b991a2366612a7b5\n_UID=0\n_GID=0\n_MACHINE_ID=a4a970370c30a925df02a13c67167847\n_HOSTNAME=ecd5e4555787\n_RUNTIME_SCOPE=system\n_TRANSPORT=journal\n_CAP_EFFECTIVE=1ffffffffff\n_SYSTEMD_CGROUP=/init.scope\n_SYSTEMD_UNIT=init.scope\n_SYSTEMD_SLICE=-.slice\nCODE_FILE=<stdin>\nCODE_LINE=1\nCODE_FUNC=<module>\nSYSLOG_IDENTIFIER=python3\n_COMM=python3\n_EXE=/usr/bin/python3.12\n_CMDLINE=python3\nMESSAGE\n\x13\x00\x00\x00\x00\x00\x00\x00foo\nbar\n\n\nasda\nasda\n_PID=2763\n_SOURCE_REALTIME_TIMESTAMP=1729698775704375\n\n",
+		[]int64{1729698775704404000},
+		"{\"_BOOT_ID\":\"f778b6e2f7584a77b991a2366612a7b5\",\"_UID\":\"0\",\"_GID\":\"0\",\"_MACHINE_ID\":\"a4a970370c30a925df02a13c67167847\",\"_HOSTNAME\":\"ecd5e4555787\",\"_RUNTIME_SCOPE\":\"system\",\"_TRANSPORT\":\"journal\",\"_CAP_EFFECTIVE\":\"1ffffffffff\",\"_SYSTEMD_CGROUP\":\"/init.scope\",\"_SYSTEMD_UNIT\":\"init.scope\",\"_SYSTEMD_SLICE\":\"-.slice\",\"CODE_FILE\":\"\\u003cstdin>\",\"CODE_LINE\":\"1\",\"CODE_FUNC\":\"\\u003cmodule>\",\"SYSLOG_IDENTIFIER\":\"python3\",\"_COMM\":\"python3\",\"_EXE\":\"/usr/bin/python3.12\",\"_CMDLINE\":\"python3\",\"_msg\":\"foo\\nbar\\n\\n\\nasda\\nasda\",\"_PID\":\"2763\",\"_SOURCE_REALTIME_TIMESTAMP\":\"1729698775704375\"}",
+	)
+}
+
+func TestPushJournald_Failure(t *testing.T) {
+	f := func(data string) {
+		t.Helper()
+		tlp := &insertutils.TestLogMessageProcessor{}
+		cp := &insertutils.CommonParams{
+			TimeField: "__REALTIME_TIMESTAMP",
+			MsgFields: []string{"MESSAGE"},
+		}
+		_, err := parseJournaldRequest([]byte(data), tlp, cp)
+		if err == nil {
+			t.Fatalf("expected non nil error")
+		}
+	}
+	// missing new line terminator for binary encoded message
+	f("__CURSOR=s=e0afe8412a6a49d2bfcf66aa7927b588;i=1f06;b=f778b6e2f7584a77b991a2366612a7b5;m=300bdfd420;t=62526e1182354;x=930dc44b370963b7\n__REALTIME_TIMESTAMP=1729698775704404\nMESSAGE\n\x13\x00\x00\x00\x00\x00\x00\x00foo\nbar\n\n\nasdaasda2")
+	// missing new line terminator
+	f("__REALTIME_TIMESTAMP=91723819283\n=Test message")
+	// empty field name
+	f("__REALTIME_TIMESTAMP=91723819283\n=Test message\n")
+	// field name starting with number
+	f("__REALTIME_TIMESTAMP=91723819283\n1incorrect=Test message\n")
+	// field name exceeds 64 limit
+	f("__REALTIME_TIMESTAMP=91723819283\ntoolooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooongcorrecooooooooooooong=Test message\n")
+	// Only allow A-Z0-9 and '_'
+	f("__REALTIME_TIMESTAMP=91723819283\nbadC!@$!@$as=Test message\n")
+}

app/vlinsert/jsonline/jsonline.go

@@ -53,7 +53,7 @@ func RequestHandler(w http.ResponseWriter, r *http.Request) {
 	}
 
 	lmp := cp.NewLogMessageProcessor()
-	err = processStreamInternal(reader, cp.TimeField, cp.MsgField, lmp)
+	err = processStreamInternal(reader, cp.TimeField, cp.MsgFields, lmp)
 	lmp.MustClose()
 
 	if err != nil {
@@ -66,7 +66,7 @@ func RequestHandler(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
-func processStreamInternal(r io.Reader, timeField, msgField string, lmp insertutils.LogMessageProcessor) error {
+func processStreamInternal(r io.Reader, timeField string, msgFields []string, lmp insertutils.LogMessageProcessor) error {
 	wcr := writeconcurrencylimiter.GetReader(r)
 	defer writeconcurrencylimiter.PutReader(wcr)
 
@@ -79,7 +79,7 @@ func processStreamInternal(r io.Reader, timeField, msgField string, lmp insertut
 
 	n := 0
 	for {
-		ok, err := readLine(sc, timeField, msgField, lmp)
+		ok, err := readLine(sc, timeField, msgFields, lmp)
 		wcr.DecConcurrency()
 		if err != nil {
 			errorsTotal.Inc()
@@ -93,7 +93,7 @@ func processStreamInternal(r io.Reader, timeField, msgField string, lmp insertut
 	}
 }
 
-func readLine(sc *bufio.Scanner, timeField, msgField string, lmp insertutils.LogMessageProcessor) (bool, error) {
+func readLine(sc *bufio.Scanner, timeField string, msgFields []string, lmp insertutils.LogMessageProcessor) (bool, error) {
 	var line []byte
 	for len(line) == 0 {
 		if !sc.Scan() {
@@ -116,7 +116,7 @@ func readLine(sc *bufio.Scanner, timeField, msgField string, lmp insertutils.Log
 	if err != nil {
 		return false, fmt.Errorf("cannot get timestamp: %w", err)
 	}
-	logstorage.RenameField(p.Fields, msgField, "_msg")
+	logstorage.RenameField(p.Fields, msgFields, "_msg")
 	lmp.AddRow(ts, p.Fields)
 	logstorage.PutJSONParser(p)
 

app/vlinsert/jsonline/jsonline_test.go

@@ -11,9 +11,10 @@ func TestProcessStreamInternal_Success(t *testing.T) {
 	f := func(data, timeField, msgField string, rowsExpected int, timestampsExpected []int64, resultExpected string) {
 		t.Helper()
 
+		msgFields := []string{msgField}
 		tlp := &insertutils.TestLogMessageProcessor{}
 		r := bytes.NewBufferString(data)
-		if err := processStreamInternal(r, timeField, msgField, tlp); err != nil {
+		if err := processStreamInternal(r, timeField, msgFields, tlp); err != nil {
 			t.Fatalf("unexpected error: %s", err)
 		}
 
@@ -34,6 +35,18 @@ func TestProcessStreamInternal_Success(t *testing.T) {
 {"_msg":"baz"}
 {"_msg":"xyz","x":"y"}`
 	f(data, timeField, msgField, rowsExpected, timestampsExpected, resultExpected)
+
+	// Non-existing msgField
+	data = `{"@timestamp":"2023-06-06T04:48:11.735Z","log":{"offset":71770,"file":{"path":"/var/log/auth.log"}},"message":"foobar"}
+{"@timestamp":"2023-06-06T04:48:12.735+01:00","message":"baz"}
+`
+	timeField = "@timestamp"
+	msgField = "foobar"
+	rowsExpected = 2
+	timestampsExpected = []int64{1686026891735000000, 1686023292735000000}
+	resultExpected = `{"log.offset":"71770","log.file.path":"/var/log/auth.log","message":"foobar"}
+{"message":"baz"}`
+	f(data, timeField, msgField, rowsExpected, timestampsExpected, resultExpected)
 }
 
 func TestProcessStreamInternal_Failure(t *testing.T) {
@@ -42,7 +55,7 @@ func TestProcessStreamInternal_Failure(t *testing.T) {
 
 		tlp := &insertutils.TestLogMessageProcessor{}
 		r := bytes.NewBufferString(data)
-		if err := processStreamInternal(r, "time", "", tlp); err == nil {
+		if err := processStreamInternal(r, "time", nil, tlp); err == nil {
 			t.Fatalf("expecting non-nil error")
 		}
 	}

app/vlinsert/main.go

@@ -5,6 +5,7 @@ import (
 	"strings"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vlinsert/elasticsearch"
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vlinsert/journald"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vlinsert/jsonline"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vlinsert/loki"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vlinsert/opentelemetry"
@@ -45,6 +46,9 @@ func RequestHandler(w http.ResponseWriter, r *http.Request) bool {
 	case strings.HasPrefix(path, "/opentelemetry/"):
 		path = strings.TrimPrefix(path, "/opentelemetry")
 		return opentelemetry.RequestHandler(path, w, r)
+	case strings.HasPrefix(path, "/journald/"):
+		path = strings.TrimPrefix(path, "/journald")
+		return journald.RequestHandler(path, w, r)
 	default:
 		return false
 	}

app/vlinsert/syslog/syslog.go

@@ -514,13 +514,15 @@ func processLine(line []byte, currentYear int, timezone *time.Location, useLocal
 		}
 		ts = nsecs
 	}
-	logstorage.RenameField(p.Fields, "message", "_msg")
+	logstorage.RenameField(p.Fields, msgFields, "_msg")
 	lmp.AddRow(ts, p.Fields)
 	logstorage.PutSyslogParser(p)
 
 	return nil
 }
 
+var msgFields = []string{"message"}
+
 var (
 	rowsIngestedTotal = metrics.NewCounter(`vl_rows_ingested_total{type="syslog"}`)
 

app/vlogscli/main.go

@@ -69,8 +69,8 @@ func main() {
 		fatalf("cannot initialize readline: %s", err)
 	}
 
-	fmt.Fprintf(rl, "sending queries to %s\n", *datasourceURL)
-
+	fmt.Fprintf(rl, "sending queries to -datasource.url=%s\n", *datasourceURL)
+	fmt.Fprintf(rl, `type ? and press enter to see available commands`+"\n")
 	runReadlineLoop(rl, &incompleteLine)
 
 	if err := rl.Close(); err != nil {
@@ -252,7 +252,7 @@ func isHelpCommand(s string) bool {
 }
 
 func printCommandsHelp(w io.Writer) {
-	fmt.Fprintf(w, "%s", `List of available commands:
+	fmt.Fprintf(w, "%s", `Available commands:
 \q - quit
 \h - show this help
 \s - singleline json output mode
@@ -260,6 +260,8 @@ func printCommandsHelp(w io.Writer) {
 \c - compact output
 \logfmt - logfmt output mode
 \tail <query> - live tail <query> results
+
+See https://docs.victoriametrics.com/victorialogs/querying/vlogscli/ for more details
 `)
 }
 

app/vlselect/logsql/logsql.go

@@ -1017,6 +1017,20 @@ func parseCommonArgs(r *http.Request) (*logstorage.Query, []logstorage.TenantID,
 		q.AddTimeFilter(start, end)
 	}
 
+	// Parse optional extra_filters
+	extraFilters, err := getExtraFilters(r, "extra_filters")
+	if err != nil {
+		return nil, nil, err
+	}
+	q.AddExtraFilters(extraFilters)
+
+	// Parse optional extra_stream_filters
+	extraStreamFilters, err := getExtraFilters(r, "extra_stream_filters")
+	if err != nil {
+		return nil, nil, err
+	}
+	q.AddExtraStreamFilters(extraStreamFilters)
+
 	return q, tenantIDs, nil
 }
 
@@ -1032,3 +1046,16 @@ func getTimeNsec(r *http.Request, argName string) (int64, bool, error) {
 	}
 	return nsecs, true, nil
 }
+
+func getExtraFilters(r *http.Request, argName string) ([]logstorage.Field, error) {
+	s := r.FormValue(argName)
+	if s == "" {
+		return nil, nil
+	}
+
+	var p logstorage.JSONParser
+	if err := p.ParseLogMessage([]byte(s)); err != nil {
+		return nil, fmt.Errorf("cannot parse %s: %w", argName, err)
+	}
+	return p.Fields, nil
+}

app/vlselect/main.go

@@ -23,7 +23,7 @@ var (
 		"See also -search.maxQueueDuration")
 	maxQueueDuration = flag.Duration("search.maxQueueDuration", 10*time.Second, "The maximum time the search request waits for execution when -search.maxConcurrentRequests "+
 		"limit is reached; see also -search.maxQueryDuration")
-	maxQueryDuration = flag.Duration("search.maxQueryDuration", time.Second*30, "The maximum duration for query execution. It can be overridden on a per-query basis via 'timeout' query arg")
+	maxQueryDuration = flag.Duration("search.maxQueryDuration", time.Second*30, "The maximum duration for query execution. It can be overridden to a smaller value on a per-query basis via 'timeout' query arg")
 )
 
 func getDefaultMaxConcurrentRequests() int {

app/vlselect/vmui/asset-manifest.json

@@ -1,13 +1,13 @@
 {
   "files": {
-    "main.css": "./static/css/main.cbbca000.css",
-    "main.js": "./static/js/main.3d2eb957.js",
+    "main.css": "./static/css/main.faf86aa5.css",
+    "main.js": "./static/js/main.64aea685.js",
     "static/js/685.f772060c.chunk.js": "./static/js/685.f772060c.chunk.js",
     "static/media/MetricsQL.md": "./static/media/MetricsQL.a00044c91d9781cf8557.md",
     "index.html": "./index.html"
   },
   "entrypoints": [
-    "static/css/main.cbbca000.css",
-    "static/js/main.3d2eb957.js"
+    "static/css/main.faf86aa5.css",
+    "static/js/main.64aea685.js"
   ]
 }

app/vlselect/vmui/config.json

@@ -0,0 +1,5 @@
+{
+  "license": {
+    "type": "opensource"
+  }
+}

app/vlselect/vmui/index.html

@@ -1 +1 @@
-<!doctype html><html lang="en"><head><meta charset="utf-8"/><link rel="icon" href="./favicon.svg"/><link rel="apple-touch-icon" href="./favicon.svg"/><link rel="mask-icon" href="./favicon.svg" color="#000000"><meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=5"/><meta name="theme-color" content="#000000"/><meta name="description" content="Explore your log data with VictoriaLogs UI"/><link rel="manifest" href="./manifest.json"/><title>UI for VictoriaLogs</title><meta name="twitter:card" content="summary"><meta name="twitter:title" content="UI for VictoriaLogs"><meta name="twitter:site" content="@https://victoriametrics.com/products/victorialogs/"><meta name="twitter:description" content="Explore your log data with VictoriaLogs UI"><meta name="twitter:image" content="./preview.jpg"><meta property="og:type" content="website"><meta property="og:title" content="UI for VictoriaLogs"><meta property="og:url" content="https://victoriametrics.com/products/victorialogs/"><meta property="og:description" content="Explore your log data with VictoriaLogs UI"><script defer="defer" src="./static/js/main.3d2eb957.js"></script><link href="./static/css/main.cbbca000.css" rel="stylesheet"></head><body><noscript>You need to enable JavaScript to run this app.</noscript><div id="root"></div></body></html>
+<!doctype html><html lang="en"><head><meta charset="utf-8"/><link rel="icon" href="./favicon.svg"/><link rel="apple-touch-icon" href="./favicon.svg"/><link rel="mask-icon" href="./favicon.svg" color="#000000"><meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=5"/><meta name="theme-color" content="#000000"/><meta name="description" content="Explore your log data with VictoriaLogs UI"/><link rel="manifest" href="./manifest.json"/><title>UI for VictoriaLogs</title><meta name="twitter:card" content="summary"><meta name="twitter:title" content="UI for VictoriaLogs"><meta name="twitter:site" content="@https://victoriametrics.com/products/victorialogs/"><meta name="twitter:description" content="Explore your log data with VictoriaLogs UI"><meta name="twitter:image" content="./preview.jpg"><meta property="og:type" content="website"><meta property="og:title" content="UI for VictoriaLogs"><meta property="og:url" content="https://victoriametrics.com/products/victorialogs/"><meta property="og:description" content="Explore your log data with VictoriaLogs UI"><script defer="defer" src="./static/js/main.64aea685.js"></script><link href="./static/css/main.faf86aa5.css" rel="stylesheet"></head><body><noscript>You need to enable JavaScript to run this app.</noscript><div id="root"></div></body></html>

app/vlstorage/main.go

@@ -18,12 +18,12 @@ import (
 )
 
 var (
-	retentionPeriod = flagutil.NewDuration("retentionPeriod", "7d", "Log entries with timestamps older than now-retentionPeriod are automatically deleted; "+
+	retentionPeriod = flagutil.NewRetentionDuration("retentionPeriod", "7d", "Log entries with timestamps older than now-retentionPeriod are automatically deleted; "+
 		"log entries with timestamps outside the retention are also rejected during data ingestion; the minimum supported retention is 1d (one day); "+
 		"see https://docs.victoriametrics.com/victorialogs/#retention ; see also -retention.maxDiskSpaceUsageBytes")
 	maxDiskSpaceUsageBytes = flagutil.NewBytes("retention.maxDiskSpaceUsageBytes", 0, "The maximum disk space usage at -storageDataPath before older per-day "+
 		"partitions are automatically dropped; see https://docs.victoriametrics.com/victorialogs/#retention-by-disk-space-usage ; see also -retentionPeriod")
-	futureRetention = flagutil.NewDuration("futureRetention", "2d", "Log entries with timestamps bigger than now+futureRetention are rejected during data ingestion; "+
+	futureRetention = flagutil.NewRetentionDuration("futureRetention", "2d", "Log entries with timestamps bigger than now+futureRetention are rejected during data ingestion; "+
 		"see https://docs.victoriametrics.com/victorialogs/#retention")
 	storageDataPath = flag.String("storageDataPath", "victoria-logs-data", "Path to directory where to store VictoriaLogs data; "+
 		"see https://docs.victoriametrics.com/victorialogs/#storage")

app/vmagent/remotewrite/streamaggr.go

@@ -24,7 +24,7 @@ var (
 	streamAggrGlobalDropInput = flag.Bool("streamAggr.dropInput", false, "Whether to drop all the input samples after the aggregation "+
 		"with -remoteWrite.streamAggr.config. By default, only aggregates samples are dropped, while the remaining samples "+
 		"are written to remote storages write. See also -streamAggr.keepInput and https://docs.victoriametrics.com/stream-aggregation/")
-	streamAggrGlobalDedupInterval = flagutil.NewDuration("streamAggr.dedupInterval", "0s", "Input samples are de-duplicated with this interval on "+
+	streamAggrGlobalDedupInterval = flag.Duration("streamAggr.dedupInterval", 0, "Input samples are de-duplicated with this interval on "+
 		"aggregator before optional aggregation with -streamAggr.config . "+
 		"See also -dedup.minScrapeInterval and https://docs.victoriametrics.com/stream-aggregation/#deduplication")
 	streamAggrGlobalIgnoreOldSamples = flag.Bool("streamAggr.ignoreOldSamples", false, "Whether to ignore input samples with old timestamps outside the "+
@@ -133,7 +133,7 @@ func initStreamAggrConfigGlobal() {
 		metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_streamaggr_config_reload_successful{path=%q}`, filePath)).Set(1)
 		metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_streamaggr_config_reload_success_timestamp_seconds{path=%q}`, filePath)).Set(fasttime.UnixTimestamp())
 	}
-	dedupInterval := streamAggrGlobalDedupInterval.Duration()
+	dedupInterval := *streamAggrGlobalDedupInterval
 	if dedupInterval > 0 {
 		deduplicatorGlobal = streamaggr.NewDeduplicator(pushToRemoteStoragesTrackDropped, dedupInterval, *streamAggrGlobalDropInputLabels, "dedup-global")
 	}
@@ -202,7 +202,7 @@ func newStreamAggrConfigGlobal() (*streamaggr.Aggregators, error) {
 	}
 
 	opts := &streamaggr.Options{
-		DedupInterval:        streamAggrGlobalDedupInterval.Duration(),
+		DedupInterval:        *streamAggrGlobalDedupInterval,
 		DropInputLabels:      *streamAggrGlobalDropInputLabels,
 		IgnoreOldSamples:     *streamAggrGlobalIgnoreOldSamples,
 		IgnoreFirstIntervals: *streamAggrGlobalIgnoreFirstIntervals,

app/vmalert-tool/unittest/input.go

@@ -43,18 +43,33 @@ func httpWrite(address string, r io.Reader) {
 // writeInputSeries send input series to vmstorage and flush them
 func writeInputSeries(input []series, interval *promutils.Duration, startStamp time.Time, dst string) error {
 	r := testutil.WriteRequest{}
+	var err error
+	r.Timeseries, err = parseInputSeries(input, interval, startStamp)
+	if err != nil {
+		return err
+	}
+
+	data := testutil.Compress(r)
+	// write input series to vm
+	httpWrite(dst, bytes.NewBuffer(data))
+	vmstorage.Storage.DebugFlush()
+	return nil
+}
+
+func parseInputSeries(input []series, interval *promutils.Duration, startStamp time.Time) ([]testutil.TimeSeries, error) {
+	var res []testutil.TimeSeries
 	for _, data := range input {
 		expr, err := metricsql.Parse(data.Series)
 		if err != nil {
-			return fmt.Errorf("failed to parse series %s: %v", data.Series, err)
+			return res, fmt.Errorf("failed to parse series %s: %v", data.Series, err)
 		}
 		promvals, err := parseInputValue(data.Values, true)
 		if err != nil {
-			return fmt.Errorf("failed to parse input series value %s: %v", data.Values, err)
+			return res, fmt.Errorf("failed to parse input series value %s: %v", data.Values, err)
 		}
 		metricExpr, ok := expr.(*metricsql.MetricExpr)
-		if !ok {
-			return fmt.Errorf("failed to parse series %s to metric expr: %v", data.Series, err)
+		if !ok || len(metricExpr.LabelFilterss) != 1 {
+			return res, fmt.Errorf("got invalid input series %s: %v", data.Series, err)
 		}
 		samples := make([]testutil.Sample, 0, len(promvals))
 		ts := startStamp
@@ -71,14 +86,9 @@ func writeInputSeries(input []series, interval *promutils.Duration, startStamp t
 		for _, filter := range metricExpr.LabelFilterss[0] {
 			ls = append(ls, testutil.Label{Name: filter.Label, Value: filter.Value})
 		}
-		r.Timeseries = append(r.Timeseries, testutil.TimeSeries{Labels: ls, Samples: samples})
+		res = append(res, testutil.TimeSeries{Labels: ls, Samples: samples})
 	}
-
-	data := testutil.Compress(r)
-	// write input series to vm
-	httpWrite(dst, bytes.NewBuffer(data))
-	vmstorage.Storage.DebugFlush()
-	return nil
+	return res, nil
 }
 
 // parseInputValue support input like "1", "1+1x1 _ -4 3+20x1", see more examples in test.

app/vmalert-tool/unittest/input_test.go

@@ -2,8 +2,10 @@ package unittest
 
 import (
 	"testing"
+	"time"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/decimal"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutils"
 )
 
 func TestParseInputValue_Failure(t *testing.T) {
@@ -43,7 +45,7 @@ func TestParseInputValue_Success(t *testing.T) {
 				if decimal.IsStaleNaN(outputExpected[i].Value) && decimal.IsStaleNaN(output[i].Value) {
 					continue
 				}
-				t.Fatalf("unexpeccted Value field in the output\ngot\n%v\nwant\n%v", output, outputExpected)
+				t.Fatalf("unexpected Value field in the output\ngot\n%v\nwant\n%v", output, outputExpected)
 			}
 		}
 	}
@@ -64,3 +66,34 @@ func TestParseInputValue_Success(t *testing.T) {
 
 	f("1+1x1 _ -4 stale 3+20x1", []sequenceValue{{Value: 1}, {Value: 2}, {Omitted: true}, {Value: -4}, {Value: decimal.StaleNaN}, {Value: 3}, {Value: 23}})
 }
+
+func TestParseInputSeries_Success(t *testing.T) {
+	f := func(input []series) {
+		t.Helper()
+		var interval promutils.Duration
+		_, err := parseInputSeries(input, &interval, time.Now())
+		if err != nil {
+			t.Fatalf("expect to see no error: %v", err)
+		}
+	}
+
+	f([]series{{Series: "test", Values: "1"}})
+	f([]series{{Series: "test{}", Values: "1"}})
+	f([]series{{Series: "test{env=\"prod\",job=\"a\" }", Values: "1"}})
+	f([]series{{Series: "{__name__=\"test\",env=\"prod\",job=\"a\" }", Values: "1"}})
+}
+
+func TestParseInputSeries_Fail(t *testing.T) {
+	f := func(input []series) {
+		t.Helper()
+		var interval promutils.Duration
+		_, err := parseInputSeries(input, &interval, time.Now())
+		if err == nil {
+			t.Fatalf("expect to see error: %v", err)
+		}
+	}
+
+	f([]series{{Series: "", Values: "1"}})
+	f([]series{{Series: "{}", Values: "1"}})
+	f([]series{{Series: "{env=\"prod\",job=\"a\" or env=\"dev\",job=\"b\"}", Values: "1"}})
+}

app/vmalert-tool/unittest/recording.go

@@ -57,16 +57,18 @@ Outer:
 					continue Outer
 				}
 				metricsqlMetricExpr, ok := metricsqlExpr.(*metricsql.MetricExpr)
-				if !ok {
+				if !ok || len(metricsqlMetricExpr.LabelFilterss) > 1 {
 					checkErrs = append(checkErrs, fmt.Errorf("\n    expr: %q, time: %s, err: %v", mt.Expr,
-						mt.EvalTime.Duration().String(), fmt.Errorf("got unsupported metricsql type")))
+						mt.EvalTime.Duration().String(), fmt.Errorf("got invalid exp_samples: %q", s.Labels)))
 					continue Outer
 				}
-				for _, l := range metricsqlMetricExpr.LabelFilterss[0] {
-					expLb = append(expLb, datasource.Label{
-						Name:  l.Label,
-						Value: l.Value,
-					})
+				if len(metricsqlMetricExpr.LabelFilterss) > 0 {
+					for _, l := range metricsqlMetricExpr.LabelFilterss[0] {
+						expLb = append(expLb, datasource.Label{
+							Name:  l.Label,
+							Value: l.Value,
+						})
+					}
 				}
 			}
 			sort.Slice(expLb, func(i, j int) bool {

app/vmalert-tool/unittest/unittest.go

@@ -250,7 +250,7 @@ checkCheck:
 			if readyCheckFunc() {
 				break checkCheck
 			}
-			time.Sleep(3 * time.Second)
+			time.Sleep(100 * time.Millisecond)
 		}
 	}
 }
@@ -270,6 +270,9 @@ func (tg *testGroup) test(evalInterval time.Duration, groupOrderMap map[string]i
 	// tear down vmstorage and clean the data dir
 	defer tearDown()
 
+	if tg.Interval == nil {
+		tg.Interval = promutils.NewDuration(evalInterval)
+	}
 	err := writeInputSeries(tg.InputSeries, tg.Interval, testStartTime, testPromWriteHTTPPath)
 	if err != nil {
 		return []error{err}

app/vmalert/config/config.go

@@ -3,6 +3,7 @@ package config
 import (
 	"bytes"
 	"crypto/md5"
+	"flag"
 	"fmt"
 	"hash/fnv"
 	"io"
@@ -17,6 +18,10 @@ import (
 	"gopkg.in/yaml.v2"
 )
 
+var (
+	defaultRuleType = flag.String("rule.defaultRuleType", "prometheus", `Default type for rule expressions, can be overridden via "type" parameter on the group level, see https://docs.victoriametrics.com/vmalert/#groups. Supported values: "graphite", "prometheus" and "vlogs".`)
+)
+
 // Group contains list of Rules grouped into
 // entity with one name and evaluation interval
 type Group struct {
@@ -59,11 +64,9 @@ func (g *Group) UnmarshalYAML(unmarshal func(any) error) error {
 	if err != nil {
 		return fmt.Errorf("failed to marshal group configuration for checksum: %w", err)
 	}
-	// change default value to prometheus datasource.
 	if g.Type.Get() == "" {
-		g.Type.Set(NewPrometheusType())
+		g.Type = NewRawType(*defaultRuleType)
 	}
-
 	h := md5.New()
 	h.Write(b)
 	g.Checksum = fmt.Sprintf("%x", h.Sum(nil))

app/vmalert/config/config_test.go

@@ -122,6 +122,7 @@ func TestParse_Failure(t *testing.T) {
 	f([]string{"testdata/dir/rules3-bad.rules"}, "either `record` or `alert` must be set")
 	f([]string{"testdata/dir/rules4-bad.rules"}, "either `record` or `alert` must be set")
 	f([]string{"testdata/rules/rules1-bad.rules"}, "bad graphite expr")
+	f([]string{"testdata/rules/vlog-rules0-bad.rules"}, "bad LogsQL expr")
 	f([]string{"testdata/dir/rules6-bad.rules"}, "missing ':' in header")
 	f([]string{"testdata/rules/rules-multi-doc-bad.rules"}, "unknown fields")
 	f([]string{"testdata/rules/rules-multi-doc-duplicates-bad.rules"}, "duplicate")
@@ -240,7 +241,7 @@ func TestGroupValidate_Failure(t *testing.T) {
 	}, false, "duplicate")
 
 	f(&Group{
-		Name: "test graphite prometheus bad expr",
+		Name: "test graphite with prometheus expr",
 		Type: NewGraphiteType(),
 		Rules: []Rule{
 			{
@@ -267,6 +268,20 @@ func TestGroupValidate_Failure(t *testing.T) {
 		},
 	}, false, "either `record` or `alert` must be set")
 
+	f(&Group{
+		Name: "test vlogs with prometheus expr",
+		Type: NewVLogsType(),
+		Rules: []Rule{
+			{
+				Expr: "sum(up == 0 ) by (host)",
+				For:  promutils.NewDuration(10 * time.Millisecond),
+			},
+			{
+				Expr: "sumSeries(time('foo.bar',10))",
+			},
+		},
+	}, false, "invalid rule")
+
 	// validate expressions
 	f(&Group{
 		Name: "test",
@@ -297,6 +312,16 @@ func TestGroupValidate_Failure(t *testing.T) {
 			}},
 		},
 	}, true, "bad graphite expr")
+
+	f(&Group{
+		Name: "test vlogs",
+		Type: NewVLogsType(),
+		Rules: []Rule{
+			{Alert: "alert", Expr: "stats count(*) as requests", Labels: map[string]string{
+				"description": "some-description",
+			}},
+		},
+	}, true, "bad LogsQL expr")
 }
 
 func TestGroupValidate_Success(t *testing.T) {
@@ -336,7 +361,7 @@ func TestGroupValidate_Success(t *testing.T) {
 		},
 	}, false, false)
 
-	// validate annotiations
+	// validate annotations
 	f(&Group{
 		Name: "test",
 		Rules: []Rule{
@@ -363,6 +388,15 @@ func TestGroupValidate_Success(t *testing.T) {
 			}},
 		},
 	}, false, true)
+	f(&Group{
+		Name: "test victorialogs",
+		Type: NewVLogsType(),
+		Rules: []Rule{
+			{Alert: "alert", Expr: " _time: 1m | stats count(*) as requests", Labels: map[string]string{
+				"description": "{{ value|query }}",
+			}},
+		},
+	}, false, true)
 }
 
 func TestHashRule_NotEqual(t *testing.T) {

app/vmalert/config/testdata/rules/vlog-rules0-bad.rules

@@ -0,0 +1,10 @@
+groups:
+  - name: InvalidStatsLogsql
+    type: vlogs
+    interval: 5m
+    rules:
+      - record: MissingFilter
+        expr: 'stats count(*) as requests'
+      - record: MissingStatsPipe
+        expr: 'service: "nginx"'
+

app/vmalert/config/testdata/rules/vlog-rules0-good.rules

@@ -0,0 +1,29 @@
+groups:
+  - name: RequestCount
+    type: vlogs
+    interval: 5m
+    rules:
+      - record: nginxRequestCount
+        expr: 'env: "test" AND service: "nginx" | stats count(*) as requests'
+        annotations:
+          description: "Service nginx on env test accepted {{$labels.requests}} requests in the last 5 minutes"
+      - record: prodRequestCount
+        expr: 'env: "prod" | stats by (service) count(*) as requests'
+        annotations:
+          description: "Service {{$labels.service}} on env prod accepted {{$labels.requests}} requests in the last 5 minutes"
+  - name: ServiceLog
+    type: vlogs
+    interval: 5m
+    rules:
+      - alert: HasErrorLog
+        expr: 'env: "prod" AND status:~"error|warn" | stats by (service) count(*) as errorLog | filter errorLog:>0'
+        annotations:
+          description: "Service {{$labels.service}} generated {{$labels.errorLog}} error logs in the last 5 minutes"
+  - name: ServiceRequest
+    type: vlogs
+    interval: 10m
+    rules:
+      - alert: TooManyFailedRequest
+        expr: '* | extract "ip=<ip> " | extract "status_code=<code>;" | stats by (ip) count() if (code:!~200) as failed, count() as total| math failed / total as failed_percentage| filter failed_percentage :> 0.01 | fields ip,failed_percentage'
+        annotations:
+          description: "Connection from address {{$labels.ip}} has {{$value}} failed requests ratio in last 10 minutes"

app/vmalert/config/types.go

@@ -5,6 +5,7 @@ import (
 	"strings"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/graphiteql"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logstorage"
 	"github.com/VictoriaMetrics/metricsql"
 )
 
@@ -27,6 +28,13 @@ func NewGraphiteType() Type {
 	}
 }
 
+// NewVLogsType returns victorialogs datasource type
+func NewVLogsType() Type {
+	return Type{
+		Name: "vlogs",
+	}
+}
+
 // NewRawType returns datasource type from raw string
 // without validation.
 func NewRawType(d string) Type {
@@ -62,6 +70,10 @@ func (t *Type) ValidateExpr(expr string) error {
 		if _, err := metricsql.Parse(expr); err != nil {
 			return fmt.Errorf("bad prometheus expr: %q, err: %w", expr, err)
 		}
+	case "vlogs":
+		if _, err := logstorage.ParseStatsQuery(expr); err != nil {
+			return fmt.Errorf("bad LogsQL expr: %q, err: %w", expr, err)
+		}
 	default:
 		return fmt.Errorf("unknown datasource type=%q", t.Name)
 	}
@@ -74,13 +86,10 @@ func (t *Type) UnmarshalYAML(unmarshal func(any) error) error {
 	if err := unmarshal(&s); err != nil {
 		return err
 	}
-	if s == "" {
-		s = "prometheus"
-	}
 	switch s {
-	case "graphite", "prometheus":
+	case "graphite", "prometheus", "vlogs":
 	default:
-		return fmt.Errorf("unknown datasource type=%q, want %q or %q", s, "prometheus", "graphite")
+		return fmt.Errorf("unknown datasource type=%q, want prometheus, graphite or vlogs", s)
 	}
 	t.Name = s
 	return nil

app/vmalert/datasource/client.go

@@ -0,0 +1,333 @@
+package datasource
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/netutil"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
+)
+
+type datasourceType string
+
+const (
+	datasourcePrometheus datasourceType = "prometheus"
+	datasourceGraphite   datasourceType = "graphite"
+	datasourceVLogs      datasourceType = "vlogs"
+)
+
+func toDatasourceType(s string) datasourceType {
+	switch s {
+	case string(datasourcePrometheus):
+		return datasourcePrometheus
+	case string(datasourceGraphite):
+		return datasourceGraphite
+	case string(datasourceVLogs):
+		return datasourceVLogs
+	default:
+		logger.Panicf("BUG: unknown datasource type %q", s)
+	}
+	return ""
+}
+
+// Client is a datasource entity for reading data,
+// supported clients are enumerated in datasourceType.
+// WARN: when adding a new field, remember to check if Clone() method needs to be updated.
+type Client struct {
+	c                *http.Client
+	authCfg          *promauth.Config
+	datasourceURL    string
+	appendTypePrefix bool
+	queryStep        time.Duration
+	dataSourceType   datasourceType
+	// ApplyIntervalAsTimeFilter is only valid for vlogs datasource.
+	// Set to true if there is no [timeFilter](https://docs.victoriametrics.com/victorialogs/logsql/#time-filter) in the rule expression,
+	// and we will add evaluation interval as an additional timeFilter when querying.
+	applyIntervalAsTimeFilter bool
+
+	// evaluationInterval will help setting request's `step` param,
+	// or adding time filter for LogsQL expression.
+	evaluationInterval time.Duration
+	// extraParams contains params to be attached to each HTTP request
+	extraParams url.Values
+	// extraHeaders are headers to be attached to each HTTP request
+	extraHeaders []keyValue
+
+	// whether to print additional log messages
+	// for each sent request
+	debug bool
+}
+
+type keyValue struct {
+	key   string
+	value string
+}
+
+// Clone clones shared http client and other configuration to the new client.
+func (c *Client) Clone() *Client {
+	ns := &Client{
+		c:                c.c,
+		authCfg:          c.authCfg,
+		datasourceURL:    c.datasourceURL,
+		appendTypePrefix: c.appendTypePrefix,
+		queryStep:        c.queryStep,
+
+		dataSourceType:     c.dataSourceType,
+		evaluationInterval: c.evaluationInterval,
+
+		// init map so it can be populated below
+		extraParams: url.Values{},
+
+		debug: c.debug,
+	}
+	if len(c.extraHeaders) > 0 {
+		ns.extraHeaders = make([]keyValue, len(c.extraHeaders))
+		copy(ns.extraHeaders, c.extraHeaders)
+	}
+	for k, v := range c.extraParams {
+		ns.extraParams[k] = v
+	}
+
+	return ns
+}
+
+// ApplyParams - changes given querier params.
+func (c *Client) ApplyParams(params QuerierParams) *Client {
+	if params.DataSourceType != "" {
+		c.dataSourceType = toDatasourceType(params.DataSourceType)
+	}
+	c.evaluationInterval = params.EvaluationInterval
+	c.applyIntervalAsTimeFilter = params.ApplyIntervalAsTimeFilter
+	if params.QueryParams != nil {
+		if c.extraParams == nil {
+			c.extraParams = url.Values{}
+		}
+		for k, vl := range params.QueryParams {
+			// custom query params are prior to default ones
+			if c.extraParams.Has(k) {
+				c.extraParams.Del(k)
+			}
+			for _, v := range vl {
+				// don't use .Set() instead of Del/Add since it is allowed
+				// for GET params to be duplicated
+				// see https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4908
+				c.extraParams.Add(k, v)
+			}
+		}
+	}
+	if params.Headers != nil {
+		for key, value := range params.Headers {
+			kv := keyValue{key: key, value: value}
+			c.extraHeaders = append(c.extraHeaders, kv)
+		}
+	}
+	c.debug = params.Debug
+	return c
+}
+
+// BuildWithParams - implements interface.
+func (c *Client) BuildWithParams(params QuerierParams) Querier {
+	return c.Clone().ApplyParams(params)
+}
+
+// NewPrometheusClient returns a new prometheus datasource client.
+func NewPrometheusClient(baseURL string, authCfg *promauth.Config, appendTypePrefix bool, c *http.Client) *Client {
+	return &Client{
+		c:                c,
+		authCfg:          authCfg,
+		datasourceURL:    strings.TrimSuffix(baseURL, "/"),
+		appendTypePrefix: appendTypePrefix,
+		queryStep:        *queryStep,
+		dataSourceType:   datasourcePrometheus,
+		extraParams:      url.Values{},
+	}
+}
+
+// Query executes the given query and returns parsed response
+func (c *Client) Query(ctx context.Context, query string, ts time.Time) (Result, *http.Request, error) {
+	req, err := c.newQueryRequest(ctx, query, ts)
+	if err != nil {
+		return Result{}, nil, err
+	}
+	resp, err := c.do(req)
+	if err != nil {
+		if !errors.Is(err, io.EOF) && !errors.Is(err, io.ErrUnexpectedEOF) && !netutil.IsTrivialNetworkError(err) {
+			// Return unexpected error to the caller.
+			return Result{}, nil, err
+		}
+		// Something in the middle between client and datasource might be closing
+		// the connection. So we do a one more attempt in hope request will succeed.
+		req, err = c.newQueryRequest(ctx, query, ts)
+		if err != nil {
+			return Result{}, nil, fmt.Errorf("second attempt: %w", err)
+		}
+		resp, err = c.do(req)
+		if err != nil {
+			return Result{}, nil, fmt.Errorf("second attempt: %w", err)
+		}
+	}
+
+	// Process the received response.
+	var parseFn func(req *http.Request, resp *http.Response) (Result, error)
+	switch c.dataSourceType {
+	case datasourcePrometheus:
+		parseFn = parsePrometheusResponse
+	case datasourceGraphite:
+		parseFn = parseGraphiteResponse
+	case datasourceVLogs:
+		parseFn = parseVLogsResponse
+	default:
+		logger.Panicf("BUG: unsupported datasource type %q to parse query response", c.dataSourceType)
+	}
+	result, err := parseFn(req, resp)
+	_ = resp.Body.Close()
+	return result, req, err
+}
+
+// QueryRange executes the given query on the given time range.
+// For Prometheus type see https://prometheus.io/docs/prometheus/latest/querying/api/#range-queries
+// Graphite type isn't supported.
+func (c *Client) QueryRange(ctx context.Context, query string, start, end time.Time) (res Result, err error) {
+	if c.dataSourceType == datasourceGraphite {
+		return res, fmt.Errorf("%q is not supported for QueryRange", c.dataSourceType)
+	}
+	// TODO: disable range query LogsQL with time filter now
+	if c.dataSourceType == datasourceVLogs && !c.applyIntervalAsTimeFilter {
+		return res, fmt.Errorf("range query is not supported for LogsQL expression %q because it contains time filter. Remove time filter from the expression and try again", query)
+	}
+	if start.IsZero() {
+		return res, fmt.Errorf("start param is missing")
+	}
+	if end.IsZero() {
+		return res, fmt.Errorf("end param is missing")
+	}
+	req, err := c.newQueryRangeRequest(ctx, query, start, end)
+	if err != nil {
+		return res, err
+	}
+	resp, err := c.do(req)
+	if err != nil {
+		if !errors.Is(err, io.EOF) && !errors.Is(err, io.ErrUnexpectedEOF) && !netutil.IsTrivialNetworkError(err) {
+			// Return unexpected error to the caller.
+			return res, err
+		}
+		// Something in the middle between client and datasource might be closing
+		// the connection. So we do a one more attempt in hope request will succeed.
+		req, err = c.newQueryRangeRequest(ctx, query, start, end)
+		if err != nil {
+			return res, fmt.Errorf("second attempt: %w", err)
+		}
+		resp, err = c.do(req)
+		if err != nil {
+			return res, fmt.Errorf("second attempt: %w", err)
+		}
+	}
+
+	// Process the received response.
+	var parseFn func(req *http.Request, resp *http.Response) (Result, error)
+	switch c.dataSourceType {
+	case datasourcePrometheus:
+		parseFn = parsePrometheusResponse
+	case datasourceVLogs:
+		parseFn = parseVLogsResponse
+	default:
+		logger.Panicf("BUG: unsupported datasource type %q to parse query range response", c.dataSourceType)
+	}
+	res, err = parseFn(req, resp)
+	_ = resp.Body.Close()
+	return res, err
+}
+
+func (c *Client) do(req *http.Request) (*http.Response, error) {
+	ru := req.URL.Redacted()
+	if *showDatasourceURL {
+		ru = req.URL.String()
+	}
+	if c.debug {
+		logger.Infof("DEBUG datasource request: executing %s request with params %q", req.Method, ru)
+	}
+	resp, err := c.c.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("error getting response from %s: %w", ru, err)
+	}
+	if resp.StatusCode != http.StatusOK {
+		body, _ := io.ReadAll(resp.Body)
+		_ = resp.Body.Close()
+		return nil, fmt.Errorf("unexpected response code %d for %s. Response body %s", resp.StatusCode, ru, body)
+	}
+	return resp, nil
+}
+
+func (c *Client) newQueryRangeRequest(ctx context.Context, query string, start, end time.Time) (*http.Request, error) {
+	req, err := c.newRequest(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("cannot create query_range request to datasource %q: %w", c.datasourceURL, err)
+	}
+	switch c.dataSourceType {
+	case datasourcePrometheus:
+		c.setPrometheusRangeReqParams(req, query, start, end)
+	case datasourceVLogs:
+		c.setVLogsRangeReqParams(req, query, start, end)
+	default:
+		logger.Panicf("BUG: unsupported datasource type %q to create range query request", c.dataSourceType)
+	}
+	return req, nil
+}
+
+func (c *Client) newQueryRequest(ctx context.Context, query string, ts time.Time) (*http.Request, error) {
+	req, err := c.newRequest(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("cannot create query request to datasource %q: %w", c.datasourceURL, err)
+	}
+	switch c.dataSourceType {
+	case datasourcePrometheus:
+		c.setPrometheusInstantReqParams(req, query, ts)
+	case datasourceGraphite:
+		c.setGraphiteReqParams(req, query)
+	case datasourceVLogs:
+		c.setVLogsInstantReqParams(req, query, ts)
+	default:
+		logger.Panicf("BUG: unsupported datasource type %q to create query request", c.dataSourceType)
+	}
+	return req, nil
+}
+
+func (c *Client) newRequest(ctx context.Context) (*http.Request, error) {
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, c.datasourceURL, nil)
+	if err != nil {
+		logger.Panicf("BUG: unexpected error from http.NewRequest(%q): %s", c.datasourceURL, err)
+	}
+	req.Header.Set("Content-Type", "application/json")
+	if c.authCfg != nil {
+		err = c.authCfg.SetHeaders(req, true)
+		if err != nil {
+			return nil, err
+		}
+	}
+	for _, h := range c.extraHeaders {
+		req.Header.Set(h.key, h.value)
+	}
+	return req, nil
+}
+
+// setReqParams adds query and other extra params for the request.
+func (c *Client) setReqParams(r *http.Request, query string) {
+	q := r.URL.Query()
+	for k, vs := range c.extraParams {
+		if q.Has(k) { // extraParams are prior to params in URL
+			q.Del(k)
+		}
+		for _, v := range vs {
+			q.Add(k, v)
+		}
+	}
+	q.Set("query", query)
+	r.URL.RawQuery = q.Encode()
+}

app/vmalert/datasource/client_graphite.go

@@ -46,7 +46,7 @@ const (
 	graphitePrefix = "/graphite"
 )
 
-func (s *VMStorage) setGraphiteReqParams(r *http.Request, query string) {
+func (s *Client) setGraphiteReqParams(r *http.Request, query string) {
 	if s.appendTypePrefix {
 		r.URL.Path += graphitePrefix
 	}

app/vmalert/datasource/client_prom.go

@@ -14,7 +14,7 @@ import (
 )
 
 var (
-	disablePathAppend = flag.Bool("remoteRead.disablePathAppend", false, "Whether to disable automatic appending of '/api/v1/query' path "+
+	disablePathAppend = flag.Bool("remoteRead.disablePathAppend", false, "Whether to disable automatic appending of '/api/v1/query' or '/select/logsql/stats_query' path "+
 		"to the configured -datasource.url and -remoteRead.url")
 	disableStepParam = flag.Bool("datasource.disableStepParam", false, "Whether to disable adding 'step' param to the issued instant queries. "+
 		"This might be useful when using vmalert with datasources that do not support 'step' param for instant queries, like Google Managed Prometheus. "+
@@ -171,7 +171,7 @@ const (
 func parsePrometheusResponse(req *http.Request, resp *http.Response) (res Result, err error) {
 	r := &promResponse{}
 	if err = json.NewDecoder(resp.Body).Decode(r); err != nil {
-		return res, fmt.Errorf("error parsing prometheus metrics for %s: %w", req.URL.Redacted(), err)
+		return res, fmt.Errorf("error parsing response from %s: %w", req.URL.Redacted(), err)
 	}
 	if r.Status == statusError {
 		return res, fmt.Errorf("response error, query: %s, errorType: %s, error: %s", req.URL.Redacted(), r.ErrorType, r.Error)
@@ -218,7 +218,7 @@ func parsePrometheusResponse(req *http.Request, resp *http.Response) (res Result
 	return res, nil
 }
 
-func (s *VMStorage) setPrometheusInstantReqParams(r *http.Request, query string, timestamp time.Time) {
+func (s *Client) setPrometheusInstantReqParams(r *http.Request, query string, timestamp time.Time) {
 	if s.appendTypePrefix {
 		r.URL.Path += "/prometheus"
 	}
@@ -238,10 +238,10 @@ func (s *VMStorage) setPrometheusInstantReqParams(r *http.Request, query string,
 		q.Set("step", fmt.Sprintf("%ds", int(s.queryStep.Seconds())))
 	}
 	r.URL.RawQuery = q.Encode()
-	s.setPrometheusReqParams(r, query)
+	s.setReqParams(r, query)
 }
 
-func (s *VMStorage) setPrometheusRangeReqParams(r *http.Request, query string, start, end time.Time) {
+func (s *Client) setPrometheusRangeReqParams(r *http.Request, query string, start, end time.Time) {
 	if s.appendTypePrefix {
 		r.URL.Path += "/prometheus"
 	}
@@ -257,19 +257,5 @@ func (s *VMStorage) setPrometheusRangeReqParams(r *http.Request, query string, s
 		q.Set("step", fmt.Sprintf("%ds", int(s.evaluationInterval.Seconds())))
 	}
 	r.URL.RawQuery = q.Encode()
-	s.setPrometheusReqParams(r, query)
-}
-
-func (s *VMStorage) setPrometheusReqParams(r *http.Request, query string) {
-	q := r.URL.Query()
-	for k, vs := range s.extraParams {
-		if q.Has(k) { // extraParams are prior to params in URL
-			q.Del(k)
-		}
-		for _, v := range vs {
-			q.Add(k, v)
-		}
-	}
-	q.Set("query", query)
-	r.URL.RawQuery = q.Encode()
+	s.setReqParams(r, query)
 }

app/vmalert/datasource/client_test.go

@@ -24,8 +24,10 @@ var (
 		Username: basicAuthName,
 		Password: promauth.NewSecret(basicAuthPass),
 	}
-	query       = "vm_rows"
-	queryRender = "constantLine(10)"
+	vmQuery         = "vm_rows"
+	queryRender     = "constantLine(10)"
+	vlogsQuery      = "_time: 5m | stats by (foo) count() total"
+	vlogsRangeQuery = "* | stats by (foo) count() total"
 )
 
 func TestVMInstantQuery(t *testing.T) {
@@ -42,8 +44,8 @@ func TestVMInstantQuery(t *testing.T) {
 		if name, pass, _ := r.BasicAuth(); name != basicAuthName || pass != basicAuthPass {
 			t.Fatalf("expected %s:%s as basic auth got %s:%s", basicAuthName, basicAuthPass, name, pass)
 		}
-		if r.URL.Query().Get("query") != query {
-			t.Fatalf("expected %s in query param, got %s", query, r.URL.Query().Get("query"))
+		if r.URL.Query().Get("query") != vmQuery {
+			t.Fatalf("expected %s in query param, got %s", vmQuery, r.URL.Query().Get("query"))
 		}
 		timeParam := r.URL.Query().Get("time")
 		if timeParam == "" {
@@ -78,6 +80,31 @@ func TestVMInstantQuery(t *testing.T) {
 			w.Write([]byte(`[{"target":"constantLine(10)","tags":{"name":"constantLine(10)"},"datapoints":[[10,1611758343],[10,1611758373],[10,1611758403]]}]`))
 		}
 	})
+	mux.HandleFunc("/select/logsql/stats_query", func(w http.ResponseWriter, r *http.Request) {
+		c++
+		if r.Method != http.MethodPost {
+			t.Fatalf("expected POST method got %s", r.Method)
+		}
+		if name, pass, _ := r.BasicAuth(); name != basicAuthName || pass != basicAuthPass {
+			t.Fatalf("expected %s:%s as basic auth got %s:%s", basicAuthName, basicAuthPass, name, pass)
+		}
+		if r.URL.Query().Get("query") != vlogsQuery {
+			t.Fatalf("expected %s in query param, got %s", vlogsQuery, r.URL.Query().Get("query"))
+		}
+		timeParam := r.URL.Query().Get("time")
+		if timeParam == "" {
+			t.Fatalf("expected 'time' in query param, got nil instead")
+		}
+		if _, err := time.Parse(time.RFC3339, timeParam); err != nil {
+			t.Fatalf("failed to parse 'time' query param %q: %s", timeParam, err)
+		}
+		switch c {
+		case 9:
+			w.Write([]byte("[]"))
+		case 10:
+			w.Write([]byte(`{"status":"success","data":{"resultType":"vector","result":[{"metric":{"__name__":"total","foo":"bar"},"value":[1583786142,"13763"]},{"metric":{"__name__":"total","foo":"baz"},"value":[1583786140,"2000"]}]}}`))
+		}
+	})
 
 	srv := httptest.NewServer(mux)
 	defer srv.Close()
@@ -86,13 +113,13 @@ func TestVMInstantQuery(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unexpected: %s", err)
 	}
-	s := NewVMStorage(srv.URL, authCfg, 0, false, srv.Client())
+	s := NewPrometheusClient(srv.URL, authCfg, false, srv.Client())
 
 	p := datasourcePrometheus
 	pq := s.BuildWithParams(QuerierParams{DataSourceType: string(p), EvaluationInterval: 15 * time.Second})
 	ts := time.Now()
 
-	expErr := func(err string) {
+	expErr := func(query, err string) {
 		_, _, gotErr := pq.Query(ctx, query, ts)
 		if gotErr == nil {
 			t.Fatalf("expected %q got nil", err)
@@ -102,13 +129,13 @@ func TestVMInstantQuery(t *testing.T) {
 		}
 	}
 
-	expErr("500")                              // 0
-	expErr("error parsing prometheus metrics") // 1
-	expErr("response error")                   // 2
-	expErr("unknown status")                   // 3
-	expErr("unexpected end of JSON input")     // 4
+	expErr(vmQuery, "500")                          // 0
+	expErr(vmQuery, "error parsing response")       // 1
+	expErr(vmQuery, "response error")               // 2
+	expErr(vmQuery, "unknown status")               // 3
+	expErr(vmQuery, "unexpected end of JSON input") // 4
 
-	res, _, err := pq.Query(ctx, query, ts) // 5 - vector
+	res, _, err := pq.Query(ctx, vmQuery, ts) // 5 - vector
 	if err != nil {
 		t.Fatalf("unexpected %s", err)
 	}
@@ -129,7 +156,7 @@ func TestVMInstantQuery(t *testing.T) {
 	}
 	metricsEqual(t, res.Data, expected)
 
-	res, req, err := pq.Query(ctx, query, ts) // 6 - scalar
+	res, req, err := pq.Query(ctx, vmQuery, ts) // 6 - scalar
 	if err != nil {
 		t.Fatalf("unexpected %s", err)
 	}
@@ -154,7 +181,7 @@ func TestVMInstantQuery(t *testing.T) {
 			res.SeriesFetched)
 	}
 
-	res, _, err = pq.Query(ctx, query, ts) // 7 - scalar with stats
+	res, _, err = pq.Query(ctx, vmQuery, ts) // 7 - scalar with stats
 	if err != nil {
 		t.Fatalf("unexpected %s", err)
 	}
@@ -175,6 +202,7 @@ func TestVMInstantQuery(t *testing.T) {
 			*res.SeriesFetched)
 	}
 
+	// test graphite
 	gq := s.BuildWithParams(QuerierParams{DataSourceType: string(datasourceGraphite)})
 
 	res, _, err = gq.Query(ctx, queryRender, ts) // 8 - graphite
@@ -192,6 +220,33 @@ func TestVMInstantQuery(t *testing.T) {
 		},
 	}
 	metricsEqual(t, res.Data, exp)
+
+	// test victorialogs
+	vlogs := datasourceVLogs
+	pq = s.BuildWithParams(QuerierParams{DataSourceType: string(vlogs), EvaluationInterval: 15 * time.Second})
+
+	expErr(vlogsQuery, "error parsing response") // 9
+
+	res, _, err = pq.Query(ctx, vlogsQuery, ts) // 10
+	if err != nil {
+		t.Fatalf("unexpected %s", err)
+	}
+	if len(res.Data) != 2 {
+		t.Fatalf("expected 2 metrics got %d in %+v", len(res.Data), res.Data)
+	}
+	expected = []Metric{
+		{
+			Labels:     []Label{{Value: "total", Name: "stats_result"}, {Value: "bar", Name: "foo"}},
+			Timestamps: []int64{1583786142},
+			Values:     []float64{13763},
+		},
+		{
+			Labels:     []Label{{Value: "total", Name: "stats_result"}, {Value: "baz", Name: "foo"}},
+			Timestamps: []int64{1583786140},
+			Values:     []float64{2000},
+		},
+	}
+	metricsEqual(t, res.Data, expected)
 }
 
 func TestVMInstantQueryWithRetry(t *testing.T) {
@@ -202,8 +257,8 @@ func TestVMInstantQueryWithRetry(t *testing.T) {
 	c := -1
 	mux.HandleFunc("/api/v1/query", func(w http.ResponseWriter, r *http.Request) {
 		c++
-		if r.URL.Query().Get("query") != query {
-			t.Fatalf("expected %s in query param, got %s", query, r.URL.Query().Get("query"))
+		if r.URL.Query().Get("query") != vmQuery {
+			t.Fatalf("expected %s in query param, got %s", vmQuery, r.URL.Query().Get("query"))
 		}
 		switch c {
 		case 0:
@@ -225,11 +280,11 @@ func TestVMInstantQueryWithRetry(t *testing.T) {
 	srv := httptest.NewServer(mux)
 	defer srv.Close()
 
-	s := NewVMStorage(srv.URL, nil, 0, false, srv.Client())
+	s := NewPrometheusClient(srv.URL, nil, false, srv.Client())
 	pq := s.BuildWithParams(QuerierParams{DataSourceType: string(datasourcePrometheus)})
 
 	expErr := func(err string) {
-		_, _, gotErr := pq.Query(ctx, query, time.Now())
+		_, _, gotErr := pq.Query(ctx, vmQuery, time.Now())
 		if gotErr == nil {
 			t.Fatalf("expected %q got nil", err)
 		}
@@ -239,7 +294,7 @@ func TestVMInstantQueryWithRetry(t *testing.T) {
 	}
 
 	expValue := func(v float64) {
-		res, _, err := pq.Query(ctx, query, time.Now())
+		res, _, err := pq.Query(ctx, vmQuery, time.Now())
 		if err != nil {
 			t.Fatalf("unexpected %s", err)
 		}
@@ -300,8 +355,8 @@ func TestVMRangeQuery(t *testing.T) {
 		if name, pass, _ := r.BasicAuth(); name != basicAuthName || pass != basicAuthPass {
 			t.Fatalf("expected %s:%s as basic auth got %s:%s", basicAuthName, basicAuthPass, name, pass)
 		}
-		if r.URL.Query().Get("query") != query {
-			t.Fatalf("expected %s in query param, got %s", query, r.URL.Query().Get("query"))
+		if r.URL.Query().Get("query") != vmQuery {
+			t.Fatalf("expected %s in query param, got %s", vmQuery, r.URL.Query().Get("query"))
 		}
 		startTS := r.URL.Query().Get("start")
 		if startTS == "" {
@@ -326,6 +381,40 @@ func TestVMRangeQuery(t *testing.T) {
 			w.Write([]byte(`{"status":"success","data":{"resultType":"matrix","result":[{"metric":{"__name__":"vm_rows"},"values":[[1583786142,"13763"]]}]}}`))
 		}
 	})
+	mux.HandleFunc("/select/logsql/stats_query_range", func(w http.ResponseWriter, r *http.Request) {
+		c++
+		if r.Method != http.MethodPost {
+			t.Fatalf("expected POST method got %s", r.Method)
+		}
+		if name, pass, _ := r.BasicAuth(); name != basicAuthName || pass != basicAuthPass {
+			t.Fatalf("expected %s:%s as basic auth got %s:%s", basicAuthName, basicAuthPass, name, pass)
+		}
+		if r.URL.Query().Get("query") != vlogsRangeQuery {
+			t.Fatalf("expected %s in query param, got %s", vmQuery, r.URL.Query().Get("query"))
+		}
+		startTS := r.URL.Query().Get("start")
+		if startTS == "" {
+			t.Fatalf("expected 'start' in query param, got nil instead")
+		}
+		if _, err := time.Parse(time.RFC3339, startTS); err != nil {
+			t.Fatalf("failed to parse 'start' query param: %s", err)
+		}
+		endTS := r.URL.Query().Get("end")
+		if endTS == "" {
+			t.Fatalf("expected 'end' in query param, got nil instead")
+		}
+		if _, err := time.Parse(time.RFC3339, endTS); err != nil {
+			t.Fatalf("failed to parse 'end' query param: %s", err)
+		}
+		step := r.URL.Query().Get("step")
+		if step != "60s" {
+			t.Fatalf("expected 'step' query param to be 60s; got %q instead", step)
+		}
+		switch c {
+		case 1:
+			w.Write([]byte(`{"status":"success","data":{"resultType":"matrix","result":[{"metric":{"__name__":"total"},"values":[[1583786142,"10"]]}]}}`))
+		}
+	})
 
 	srv := httptest.NewServer(mux)
 	defer srv.Close()
@@ -334,19 +423,19 @@ func TestVMRangeQuery(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unexpected: %s", err)
 	}
-	s := NewVMStorage(srv.URL, authCfg, *queryStep, false, srv.Client())
+	s := NewPrometheusClient(srv.URL, authCfg, false, srv.Client())
 
 	pq := s.BuildWithParams(QuerierParams{DataSourceType: string(datasourcePrometheus), EvaluationInterval: 15 * time.Second})
 
-	_, err = pq.QueryRange(ctx, query, time.Now(), time.Time{})
+	_, err = pq.QueryRange(ctx, vmQuery, time.Now(), time.Time{})
 	expectError(t, err, "is missing")
 
-	_, err = pq.QueryRange(ctx, query, time.Time{}, time.Now())
+	_, err = pq.QueryRange(ctx, vmQuery, time.Time{}, time.Now())
 	expectError(t, err, "is missing")
 
 	start, end := time.Now().Add(-time.Minute), time.Now()
 
-	res, err := pq.QueryRange(ctx, query, start, end)
+	res, err := pq.QueryRange(ctx, vmQuery, start, end)
 	if err != nil {
 		t.Fatalf("unexpected %s", err)
 	}
@@ -363,33 +452,66 @@ func TestVMRangeQuery(t *testing.T) {
 		t.Fatalf("unexpected metric %+v want %+v", m[0], expected)
 	}
 
+	// test unsupported graphite
 	gq := s.BuildWithParams(QuerierParams{DataSourceType: string(datasourceGraphite)})
 
 	_, err = gq.QueryRange(ctx, queryRender, start, end)
 	expectError(t, err, "is not supported")
+
+	// unsupported logsql
+	gq = s.BuildWithParams(QuerierParams{DataSourceType: string(datasourceVLogs), EvaluationInterval: 60 * time.Second})
+
+	res, err = gq.QueryRange(ctx, vlogsRangeQuery, start, end)
+	expectError(t, err, "is not supported")
+
+	// supported logsql
+	gq = s.BuildWithParams(QuerierParams{DataSourceType: string(datasourceVLogs), EvaluationInterval: 60 * time.Second, ApplyIntervalAsTimeFilter: true})
+	res, err = gq.QueryRange(ctx, vlogsRangeQuery, start, end)
+	if err != nil {
+		t.Fatalf("unexpected %s", err)
+	}
+	m = res.Data
+	if len(m) != 1 {
+		t.Fatalf("expected 1 metric  got %d in %+v", len(m), m)
+	}
+	expected = Metric{
+		Labels:     []Label{{Value: "total", Name: "stats_result"}},
+		Timestamps: []int64{1583786142},
+		Values:     []float64{10},
+	}
+	if !reflect.DeepEqual(m[0], expected) {
+		t.Fatalf("unexpected metric %+v want %+v", m[0], expected)
+	}
 }
 
 func TestRequestParams(t *testing.T) {
 	query := "up"
+	vlogsQuery := "_time: 5m | stats count() total"
 	timestamp := time.Date(2001, 2, 3, 4, 5, 6, 0, time.UTC)
 
-	f := func(isQueryRange bool, vm *VMStorage, checkFn func(t *testing.T, r *http.Request)) {
+	f := func(isQueryRange bool, c *Client, checkFn func(t *testing.T, r *http.Request)) {
 		t.Helper()
 
-		req, err := vm.newRequest(ctx)
+		req, err := c.newRequest(ctx)
 		if err != nil {
 			t.Fatalf("error in newRequest: %s", err)
 		}
 
-		switch vm.dataSourceType {
-		case "", datasourcePrometheus:
+		switch c.dataSourceType {
+		case datasourcePrometheus:
 			if isQueryRange {
-				vm.setPrometheusRangeReqParams(req, query, timestamp, timestamp)
+				c.setPrometheusRangeReqParams(req, query, timestamp, timestamp)
 			} else {
-				vm.setPrometheusInstantReqParams(req, query, timestamp)
+				c.setPrometheusInstantReqParams(req, query, timestamp)
 			}
 		case datasourceGraphite:
-			vm.setGraphiteReqParams(req, query)
+			c.setGraphiteReqParams(req, query)
+		case datasourceVLogs:
+			if isQueryRange {
+				c.setVLogsRangeReqParams(req, vlogsQuery, timestamp, timestamp)
+			} else {
+				c.setVLogsInstantReqParams(req, vlogsQuery, timestamp)
+			}
 		}
 
 		checkFn(t, req)
@@ -399,19 +521,19 @@ func TestRequestParams(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unexpected error: %s", err)
 	}
-	storage := VMStorage{
+	storage := Client{
 		extraParams: url.Values{"round_digits": {"10"}},
 	}
 
 	// prometheus path
-	f(false, &VMStorage{
+	f(false, &Client{
 		dataSourceType: datasourcePrometheus,
 	}, func(t *testing.T, r *http.Request) {
 		checkEqualString(t, "/api/v1/query", r.URL.Path)
 	})
 
 	// prometheus prefix
-	f(false, &VMStorage{
+	f(false, &Client{
 		dataSourceType:   datasourcePrometheus,
 		appendTypePrefix: true,
 	}, func(t *testing.T, r *http.Request) {
@@ -419,14 +541,14 @@ func TestRequestParams(t *testing.T) {
 	})
 
 	// prometheus range path
-	f(true, &VMStorage{
+	f(true, &Client{
 		dataSourceType: datasourcePrometheus,
 	}, func(t *testing.T, r *http.Request) {
 		checkEqualString(t, "/api/v1/query_range", r.URL.Path)
 	})
 
 	// prometheus range prefix
-	f(true, &VMStorage{
+	f(true, &Client{
 		dataSourceType:   datasourcePrometheus,
 		appendTypePrefix: true,
 	}, func(t *testing.T, r *http.Request) {
@@ -434,14 +556,14 @@ func TestRequestParams(t *testing.T) {
 	})
 
 	// graphite path
-	f(false, &VMStorage{
+	f(false, &Client{
 		dataSourceType: datasourceGraphite,
 	}, func(t *testing.T, r *http.Request) {
 		checkEqualString(t, graphitePath, r.URL.Path)
 	})
 
 	// graphite prefix
-	f(false, &VMStorage{
+	f(false, &Client{
 		dataSourceType:   datasourceGraphite,
 		appendTypePrefix: true,
 	}, func(t *testing.T, r *http.Request) {
@@ -449,21 +571,27 @@ func TestRequestParams(t *testing.T) {
 	})
 
 	// default params
-	f(false, &VMStorage{}, func(t *testing.T, r *http.Request) {
+	f(false, &Client{dataSourceType: datasourcePrometheus}, func(t *testing.T, r *http.Request) {
+		exp := url.Values{"query": {query}, "time": {timestamp.Format(time.RFC3339)}}
+		checkEqualString(t, exp.Encode(), r.URL.RawQuery)
+	})
+
+	f(false, &Client{dataSourceType: datasourcePrometheus, applyIntervalAsTimeFilter: true}, func(t *testing.T, r *http.Request) {
 		exp := url.Values{"query": {query}, "time": {timestamp.Format(time.RFC3339)}}
 		checkEqualString(t, exp.Encode(), r.URL.RawQuery)
 	})
 
 	// default range params
-	f(true, &VMStorage{}, func(t *testing.T, r *http.Request) {
+	f(true, &Client{dataSourceType: datasourcePrometheus}, func(t *testing.T, r *http.Request) {
 		ts := timestamp.Format(time.RFC3339)
 		exp := url.Values{"query": {query}, "start": {ts}, "end": {ts}}
 		checkEqualString(t, exp.Encode(), r.URL.RawQuery)
 	})
 
 	// basic auth
-	f(false, &VMStorage{
-		authCfg: authCfg,
+	f(false, &Client{
+		dataSourceType: datasourcePrometheus,
+		authCfg:        authCfg,
 	}, func(t *testing.T, r *http.Request) {
 		u, p, _ := r.BasicAuth()
 		checkEqualString(t, "foo", u)
@@ -471,8 +599,9 @@ func TestRequestParams(t *testing.T) {
 	})
 
 	// basic auth range
-	f(true, &VMStorage{
-		authCfg: authCfg,
+	f(true, &Client{
+		dataSourceType: datasourcePrometheus,
+		authCfg:        authCfg,
 	}, func(t *testing.T, r *http.Request) {
 		u, p, _ := r.BasicAuth()
 		checkEqualString(t, "foo", u)
@@ -480,7 +609,8 @@ func TestRequestParams(t *testing.T) {
 	})
 
 	// evaluation interval
-	f(false, &VMStorage{
+	f(false, &Client{
+		dataSourceType:     datasourcePrometheus,
 		evaluationInterval: 15 * time.Second,
 	}, func(t *testing.T, r *http.Request) {
 		evalInterval := 15 * time.Second
@@ -489,8 +619,9 @@ func TestRequestParams(t *testing.T) {
 	})
 
 	// step override
-	f(false, &VMStorage{
-		queryStep: time.Minute,
+	f(false, &Client{
+		dataSourceType: datasourcePrometheus,
+		queryStep:      time.Minute,
 	}, func(t *testing.T, r *http.Request) {
 		exp := url.Values{
 			"query": {query},
@@ -501,7 +632,8 @@ func TestRequestParams(t *testing.T) {
 	})
 
 	//  step to seconds
-	f(false, &VMStorage{
+	f(false, &Client{
+		dataSourceType:     datasourcePrometheus,
 		evaluationInterval: 3 * time.Hour,
 	}, func(t *testing.T, r *http.Request) {
 		evalInterval := 3 * time.Hour
@@ -510,15 +642,17 @@ func TestRequestParams(t *testing.T) {
 	})
 
 	// prometheus extra params
-	f(false, &VMStorage{
-		extraParams: url.Values{"round_digits": {"10"}},
+	f(false, &Client{
+		dataSourceType: datasourcePrometheus,
+		extraParams:    url.Values{"round_digits": {"10"}},
 	}, func(t *testing.T, r *http.Request) {
 		exp := url.Values{"query": {query}, "round_digits": {"10"}, "time": {timestamp.Format(time.RFC3339)}}
 		checkEqualString(t, exp.Encode(), r.URL.RawQuery)
 	})
 
 	// prometheus extra params range
-	f(true, &VMStorage{
+	f(true, &Client{
+		dataSourceType: datasourcePrometheus,
 		extraParams: url.Values{
 			"nocache":      {"1"},
 			"max_lookback": {"1h"},
@@ -536,7 +670,8 @@ func TestRequestParams(t *testing.T) {
 
 	// custom params overrides the original params
 	f(false, storage.Clone().ApplyParams(QuerierParams{
-		QueryParams: url.Values{"round_digits": {"2"}},
+		DataSourceType: string(datasourcePrometheus),
+		QueryParams:    url.Values{"round_digits": {"2"}},
 	}), func(t *testing.T, r *http.Request) {
 		exp := url.Values{"query": {query}, "round_digits": {"2"}, "time": {timestamp.Format(time.RFC3339)}}
 		checkEqualString(t, exp.Encode(), r.URL.RawQuery)
@@ -544,14 +679,15 @@ func TestRequestParams(t *testing.T) {
 
 	// allow duplicates in query params
 	f(false, storage.Clone().ApplyParams(QuerierParams{
-		QueryParams: url.Values{"extra_labels": {"env=dev", "foo=bar"}},
+		DataSourceType: string(datasourcePrometheus),
+		QueryParams:    url.Values{"extra_labels": {"env=dev", "foo=bar"}},
 	}), func(t *testing.T, r *http.Request) {
 		exp := url.Values{"query": {query}, "round_digits": {"10"}, "extra_labels": {"env=dev", "foo=bar"}, "time": {timestamp.Format(time.RFC3339)}}
 		checkEqualString(t, exp.Encode(), r.URL.RawQuery)
 	})
 
 	// graphite extra params
-	f(false, &VMStorage{
+	f(false, &Client{
 		dataSourceType: datasourceGraphite,
 		extraParams: url.Values{
 			"nocache":      {"1"},
@@ -563,7 +699,7 @@ func TestRequestParams(t *testing.T) {
 	})
 
 	// graphite extra params allows to override from
-	f(false, &VMStorage{
+	f(false, &Client{
 		dataSourceType: datasourceGraphite,
 		extraParams: url.Values{
 			"from": {"-10m"},
@@ -572,10 +708,38 @@ func TestRequestParams(t *testing.T) {
 		exp := fmt.Sprintf("format=json&from=-10m&target=%s&until=now", query)
 		checkEqualString(t, exp, r.URL.RawQuery)
 	})
+
+	// test vlogs
+	f(false, &Client{
+		dataSourceType:     datasourceVLogs,
+		evaluationInterval: time.Minute,
+	}, func(t *testing.T, r *http.Request) {
+		exp := url.Values{"query": {vlogsQuery}, "time": {timestamp.Format(time.RFC3339)}}
+		checkEqualString(t, exp.Encode(), r.URL.RawQuery)
+	})
+
+	f(false, &Client{
+		dataSourceType:            datasourceVLogs,
+		evaluationInterval:        time.Minute,
+		applyIntervalAsTimeFilter: true,
+	}, func(t *testing.T, r *http.Request) {
+		ts := timestamp.Format(time.RFC3339)
+		exp := url.Values{"query": {vlogsQuery}, "time": {ts}, "start": {timestamp.Add(-time.Minute).Format(time.RFC3339)}, "end": {ts}}
+		checkEqualString(t, exp.Encode(), r.URL.RawQuery)
+	})
+
+	f(true, &Client{
+		dataSourceType:     datasourceVLogs,
+		evaluationInterval: time.Minute,
+	}, func(t *testing.T, r *http.Request) {
+		ts := timestamp.Format(time.RFC3339)
+		exp := url.Values{"query": {vlogsQuery}, "start": {ts}, "end": {ts}, "step": {"60s"}}
+		checkEqualString(t, exp.Encode(), r.URL.RawQuery)
+	})
 }
 
 func TestHeaders(t *testing.T) {
-	f := func(vmFn func() *VMStorage, checkFn func(t *testing.T, r *http.Request)) {
+	f := func(vmFn func() *Client, checkFn func(t *testing.T, r *http.Request)) {
 		t.Helper()
 
 		vm := vmFn()
@@ -587,12 +751,12 @@ func TestHeaders(t *testing.T) {
 	}
 
 	// basic auth
-	f(func() *VMStorage {
+	f(func() *Client {
 		cfg, err := utils.AuthConfig(utils.WithBasicAuth("foo", "bar", ""))
 		if err != nil {
 			t.Fatalf("Error get auth config: %s", err)
 		}
-		return &VMStorage{authCfg: cfg}
+		return NewPrometheusClient("", cfg, false, nil)
 	}, func(t *testing.T, r *http.Request) {
 		u, p, _ := r.BasicAuth()
 		checkEqualString(t, "foo", u)
@@ -600,12 +764,12 @@ func TestHeaders(t *testing.T) {
 	})
 
 	// bearer auth
-	f(func() *VMStorage {
+	f(func() *Client {
 		cfg, err := utils.AuthConfig(utils.WithBearer("foo", ""))
 		if err != nil {
 			t.Fatalf("Error get auth config: %s", err)
 		}
-		return &VMStorage{authCfg: cfg}
+		return NewPrometheusClient("", cfg, false, nil)
 	}, func(t *testing.T, r *http.Request) {
 		reqToken := r.Header.Get("Authorization")
 		splitToken := strings.Split(reqToken, "Bearer ")
@@ -617,11 +781,13 @@ func TestHeaders(t *testing.T) {
 	})
 
 	// custom extraHeaders
-	f(func() *VMStorage {
-		return &VMStorage{extraHeaders: []keyValue{
+	f(func() *Client {
+		c := NewPrometheusClient("", nil, false, nil)
+		c.extraHeaders = []keyValue{
 			{key: "Foo", value: "bar"},
 			{key: "Baz", value: "qux"},
-		}}
+		}
+		return c
 	}, func(t *testing.T, r *http.Request) {
 		h1 := r.Header.Get("Foo")
 		checkEqualString(t, "bar", h1)
@@ -630,17 +796,16 @@ func TestHeaders(t *testing.T) {
 	})
 
 	// custom header overrides basic auth
-	f(func() *VMStorage {
+	f(func() *Client {
 		cfg, err := utils.AuthConfig(utils.WithBasicAuth("foo", "bar", ""))
 		if err != nil {
 			t.Fatalf("Error get auth config: %s", err)
 		}
-		return &VMStorage{
-			authCfg: cfg,
-			extraHeaders: []keyValue{
-				{key: "Authorization", value: "Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ=="},
-			},
+		c := NewPrometheusClient("", cfg, false, nil)
+		c.extraHeaders = []keyValue{
+			{key: "Authorization", value: "Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ=="},
 		}
+		return c
 	}, func(t *testing.T, r *http.Request) {
 		u, p, _ := r.BasicAuth()
 		checkEqualString(t, "Aladdin", u)

app/vmalert/datasource/client_vlogs.go

@@ -0,0 +1,61 @@
+package datasource
+
+import (
+	"fmt"
+	"net/http"
+	"time"
+)
+
+func (s *Client) setVLogsInstantReqParams(r *http.Request, query string, timestamp time.Time) {
+	// there is no type path prefix in victorialogs APIs right now, ignore appendTypePrefix.
+	if !*disablePathAppend {
+		r.URL.Path += "/select/logsql/stats_query"
+	}
+	q := r.URL.Query()
+	// set `time` param explicitly, it will be used as the timestamp of query results.
+	q.Set("time", timestamp.Format(time.RFC3339))
+	// set the `start` and `end` params if applyIntervalAsTimeFilter is enabled(time filter is missing in the rule expr),
+	// so the query will be executed in time range [timestamp - evaluationInterval, timestamp].
+	if s.applyIntervalAsTimeFilter && s.evaluationInterval > 0 {
+		q.Set("start", timestamp.Add(-s.evaluationInterval).Format(time.RFC3339))
+		q.Set("end", timestamp.Format(time.RFC3339))
+	}
+	r.URL.RawQuery = q.Encode()
+	s.setReqParams(r, query)
+}
+
+func (s *Client) setVLogsRangeReqParams(r *http.Request, query string, start, end time.Time) {
+	// there is no type path prefix in victorialogs APIs right now, ignore appendTypePrefix.
+	if !*disablePathAppend {
+		r.URL.Path += "/select/logsql/stats_query_range"
+	}
+	q := r.URL.Query()
+	q.Add("start", start.Format(time.RFC3339))
+	q.Add("end", end.Format(time.RFC3339))
+	// set step as evaluationInterval by default
+	if s.evaluationInterval > 0 {
+		q.Set("step", fmt.Sprintf("%ds", int(s.evaluationInterval.Seconds())))
+	}
+	r.URL.RawQuery = q.Encode()
+	s.setReqParams(r, query)
+}
+
+func parseVLogsResponse(req *http.Request, resp *http.Response) (res Result, err error) {
+	res, err = parsePrometheusResponse(req, resp)
+	if err != nil {
+		return Result{}, err
+	}
+	for i := range res.Data {
+		m := &res.Data[i]
+		for j := range m.Labels {
+			// reserve the stats func result name with a new label `stats_result` instead of dropping it,
+			// since there could be multiple stats results in a single query, for instance:
+			// 	_time:5m | stats quantile(0.5, request_duration_seconds) p50, quantile(0.9, request_duration_seconds) p90
+			if m.Labels[j].Name == "__name__" {
+				m.Labels[j].Name = "stats_result"
+				break
+			}
+		}
+	}
+	return
+}

app/vmalert/datasource/datasource.go

@@ -42,11 +42,15 @@ type QuerierBuilder interface {
 
 // QuerierParams params for Querier.
 type QuerierParams struct {
-	DataSourceType     string
-	EvaluationInterval time.Duration
-	QueryParams        url.Values
-	Headers            map[string]string
-	Debug              bool
+	DataSourceType string
+	// ApplyIntervalAsTimeFilter is only valid for vlogs datasource.
+	// Set to true if there is no [timeFilter](https://docs.victoriametrics.com/victorialogs/logsql/#time-filter) in the rule expression,
+	// and we will add evaluation interval as an additional timeFilter when querying.
+	ApplyIntervalAsTimeFilter bool
+	EvaluationInterval        time.Duration
+	QueryParams               url.Values
+	Headers                   map[string]string
+	Debug                     bool
 }
 
 // Metric is the basic entity which should be return by datasource

app/vmalert/datasource/init.go

@@ -133,13 +133,12 @@ func Init(extraParams url.Values) (QuerierBuilder, error) {
 		return nil, fmt.Errorf("failed to set request auth header to datasource %q: %w", *addr, err)
 	}
 
-	return &VMStorage{
+	return &Client{
 		c:                &http.Client{Transport: tr},
 		authCfg:          authCfg,
 		datasourceURL:    strings.TrimSuffix(*addr, "/"),
 		appendTypePrefix: *appendTypePrefix,
 		queryStep:        *queryStep,
-		dataSourceType:   datasourcePrometheus,
 		extraParams:      extraParams,
 	}, nil
 }

app/vmalert/datasource/vm.go

@@ -1,272 +0,0 @@
-package datasource
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"io"
-	"net/http"
-	"net/url"
-	"strings"
-	"time"
-
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/netutil"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
-)
-
-type datasourceType string
-
-const (
-	datasourcePrometheus datasourceType = "prometheus"
-	datasourceGraphite   datasourceType = "graphite"
-)
-
-func toDatasourceType(s string) datasourceType {
-	if s == string(datasourceGraphite) {
-		return datasourceGraphite
-	}
-	return datasourcePrometheus
-}
-
-// VMStorage represents vmstorage entity with ability to read and write metrics
-// WARN: when adding a new field, remember to update Clone() method.
-type VMStorage struct {
-	c                *http.Client
-	authCfg          *promauth.Config
-	datasourceURL    string
-	appendTypePrefix bool
-	queryStep        time.Duration
-	dataSourceType   datasourceType
-
-	// evaluationInterval will help setting request's `step` param.
-	evaluationInterval time.Duration
-	// extraParams contains params to be attached to each HTTP request
-	extraParams url.Values
-	// extraHeaders are headers to be attached to each HTTP request
-	extraHeaders []keyValue
-
-	// whether to print additional log messages
-	// for each sent request
-	debug bool
-}
-
-type keyValue struct {
-	key   string
-	value string
-}
-
-// Clone makes clone of VMStorage, shares http client.
-func (s *VMStorage) Clone() *VMStorage {
-	ns := &VMStorage{
-		c:                s.c,
-		authCfg:          s.authCfg,
-		datasourceURL:    s.datasourceURL,
-		appendTypePrefix: s.appendTypePrefix,
-		queryStep:        s.queryStep,
-
-		dataSourceType:     s.dataSourceType,
-		evaluationInterval: s.evaluationInterval,
-
-		// init map so it can be populated below
-		extraParams: url.Values{},
-
-		debug: s.debug,
-	}
-	if len(s.extraHeaders) > 0 {
-		ns.extraHeaders = make([]keyValue, len(s.extraHeaders))
-		copy(ns.extraHeaders, s.extraHeaders)
-	}
-	for k, v := range s.extraParams {
-		ns.extraParams[k] = v
-	}
-
-	return ns
-}
-
-// ApplyParams - changes given querier params.
-func (s *VMStorage) ApplyParams(params QuerierParams) *VMStorage {
-	s.dataSourceType = toDatasourceType(params.DataSourceType)
-	s.evaluationInterval = params.EvaluationInterval
-	if params.QueryParams != nil {
-		if s.extraParams == nil {
-			s.extraParams = url.Values{}
-		}
-		for k, vl := range params.QueryParams {
-			// custom query params are prior to default ones
-			if s.extraParams.Has(k) {
-				s.extraParams.Del(k)
-			}
-			for _, v := range vl {
-				// don't use .Set() instead of Del/Add since it is allowed
-				// for GET params to be duplicated
-				// see https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4908
-				s.extraParams.Add(k, v)
-			}
-		}
-	}
-	if params.Headers != nil {
-		for key, value := range params.Headers {
-			kv := keyValue{key: key, value: value}
-			s.extraHeaders = append(s.extraHeaders, kv)
-		}
-	}
-	s.debug = params.Debug
-	return s
-}
-
-// BuildWithParams - implements interface.
-func (s *VMStorage) BuildWithParams(params QuerierParams) Querier {
-	return s.Clone().ApplyParams(params)
-}
-
-// NewVMStorage is a constructor for VMStorage
-func NewVMStorage(baseURL string, authCfg *promauth.Config, queryStep time.Duration, appendTypePrefix bool, c *http.Client) *VMStorage {
-	return &VMStorage{
-		c:                c,
-		authCfg:          authCfg,
-		datasourceURL:    strings.TrimSuffix(baseURL, "/"),
-		appendTypePrefix: appendTypePrefix,
-		queryStep:        queryStep,
-		dataSourceType:   datasourcePrometheus,
-		extraParams:      url.Values{},
-	}
-}
-
-// Query executes the given query and returns parsed response
-func (s *VMStorage) Query(ctx context.Context, query string, ts time.Time) (Result, *http.Request, error) {
-	req, err := s.newQueryRequest(ctx, query, ts)
-	if err != nil {
-		return Result{}, nil, err
-	}
-	resp, err := s.do(req)
-	if err != nil {
-		if !errors.Is(err, io.EOF) && !errors.Is(err, io.ErrUnexpectedEOF) && !netutil.IsTrivialNetworkError(err) {
-			// Return unexpected error to the caller.
-			return Result{}, nil, err
-		}
-		// Something in the middle between client and datasource might be closing
-		// the connection. So we do a one more attempt in hope request will succeed.
-		req, err = s.newQueryRequest(ctx, query, ts)
-		if err != nil {
-			return Result{}, nil, fmt.Errorf("second attempt: %w", err)
-		}
-		resp, err = s.do(req)
-		if err != nil {
-			return Result{}, nil, fmt.Errorf("second attempt: %w", err)
-		}
-	}
-
-	// Process the received response.
-	parseFn := parsePrometheusResponse
-	if s.dataSourceType != datasourcePrometheus {
-		parseFn = parseGraphiteResponse
-	}
-	result, err := parseFn(req, resp)
-	_ = resp.Body.Close()
-	return result, req, err
-}
-
-// QueryRange executes the given query on the given time range.
-// For Prometheus type see https://prometheus.io/docs/prometheus/latest/querying/api/#range-queries
-// Graphite type isn't supported.
-func (s *VMStorage) QueryRange(ctx context.Context, query string, start, end time.Time) (res Result, err error) {
-	if s.dataSourceType != datasourcePrometheus {
-		return res, fmt.Errorf("%q is not supported for QueryRange", s.dataSourceType)
-	}
-	if start.IsZero() {
-		return res, fmt.Errorf("start param is missing")
-	}
-	if end.IsZero() {
-		return res, fmt.Errorf("end param is missing")
-	}
-	req, err := s.newQueryRangeRequest(ctx, query, start, end)
-	if err != nil {
-		return res, err
-	}
-	resp, err := s.do(req)
-	if err != nil {
-		if !errors.Is(err, io.EOF) && !errors.Is(err, io.ErrUnexpectedEOF) && !netutil.IsTrivialNetworkError(err) {
-			// Return unexpected error to the caller.
-			return res, err
-		}
-		// Something in the middle between client and datasource might be closing
-		// the connection. So we do a one more attempt in hope request will succeed.
-		req, err = s.newQueryRangeRequest(ctx, query, start, end)
-		if err != nil {
-			return res, fmt.Errorf("second attempt: %w", err)
-		}
-		resp, err = s.do(req)
-		if err != nil {
-			return res, fmt.Errorf("second attempt: %w", err)
-		}
-	}
-
-	// Process the received response.
-	res, err = parsePrometheusResponse(req, resp)
-	_ = resp.Body.Close()
-	return res, err
-}
-
-func (s *VMStorage) do(req *http.Request) (*http.Response, error) {
-	ru := req.URL.Redacted()
-	if *showDatasourceURL {
-		ru = req.URL.String()
-	}
-	if s.debug {
-		logger.Infof("DEBUG datasource request: executing %s request with params %q", req.Method, ru)
-	}
-	resp, err := s.c.Do(req)
-	if err != nil {
-		return nil, fmt.Errorf("error getting response from %s: %w", ru, err)
-	}
-	if resp.StatusCode != http.StatusOK {
-		body, _ := io.ReadAll(resp.Body)
-		_ = resp.Body.Close()
-		return nil, fmt.Errorf("unexpected response code %d for %s. Response body %s", resp.StatusCode, ru, body)
-	}
-	return resp, nil
-}
-
-func (s *VMStorage) newQueryRangeRequest(ctx context.Context, query string, start, end time.Time) (*http.Request, error) {
-	req, err := s.newRequest(ctx)
-	if err != nil {
-		return nil, fmt.Errorf("cannot create query_range request to datasource %q: %w", s.datasourceURL, err)
-	}
-	s.setPrometheusRangeReqParams(req, query, start, end)
-	return req, nil
-}
-
-func (s *VMStorage) newQueryRequest(ctx context.Context, query string, ts time.Time) (*http.Request, error) {
-	req, err := s.newRequest(ctx)
-	if err != nil {
-		return nil, fmt.Errorf("cannot create query request to datasource %q: %w", s.datasourceURL, err)
-	}
-	switch s.dataSourceType {
-	case "", datasourcePrometheus:
-		s.setPrometheusInstantReqParams(req, query, ts)
-	case datasourceGraphite:
-		s.setGraphiteReqParams(req, query)
-	default:
-		logger.Panicf("BUG: engine not found: %q", s.dataSourceType)
-	}
-	return req, nil
-}
-
-func (s *VMStorage) newRequest(ctx context.Context) (*http.Request, error) {
-	req, err := http.NewRequestWithContext(ctx, http.MethodPost, s.datasourceURL, nil)
-	if err != nil {
-		logger.Panicf("BUG: unexpected error from http.NewRequest(%q): %s", s.datasourceURL, err)
-	}
-	req.Header.Set("Content-Type", "application/json")
-	if s.authCfg != nil {
-		err = s.authCfg.SetHeaders(req, true)
-		if err != nil {
-			return nil, err
-		}
-	}
-	for _, h := range s.extraHeaders {
-		req.Header.Set(h.key, h.value)
-	}
-	return req, nil
-}

app/vmalert/main.go

@@ -66,7 +66,7 @@ absolute path to all .tpl files in root.
 	evaluationInterval = flag.Duration("evaluationInterval", time.Minute, "How often to evaluate the rules")
 
 	validateTemplates   = flag.Bool("rule.validateTemplates", true, "Whether to validate annotation and label templates")
-	validateExpressions = flag.Bool("rule.validateExpressions", true, "Whether to validate rules expressions via MetricsQL engine")
+	validateExpressions = flag.Bool("rule.validateExpressions", true, "Whether to validate rules expressions for different types.")
 
 	externalURL         = flag.String("external.url", "", "External URL is used as alert's source for sent alerts to the notifier. By default, hostname is used as address.")
 	externalAlertSource = flag.String("external.alert.source", "", `External Alert Source allows to override the Source link for alerts sent to AlertManager `+

app/vmalert/remoteread/init.go

@@ -86,5 +86,5 @@ func Init() (datasource.QuerierBuilder, error) {
 		return nil, fmt.Errorf("failed to configure auth: %w", err)
 	}
 	c := &http.Client{Transport: tr}
-	return datasource.NewVMStorage(*addr, authCfg, 0, false, c), nil
+	return datasource.NewPrometheusClient(*addr, authCfg, false, c), nil
 }

app/vmalert/remotewrite/client.go

@@ -15,6 +15,7 @@ import (
 
 	"github.com/golang/snappy"
 
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/cgroup"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/netutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
@@ -22,11 +23,12 @@ import (
 	"github.com/VictoriaMetrics/metrics"
 )
 
+var defaultConcurrency = cgroup.AvailableCPUs() * 2
+
 const (
-	defaultConcurrency   = 4
-	defaultMaxBatchSize  = 1e3
-	defaultMaxQueueSize  = 1e5
-	defaultFlushInterval = 5 * time.Second
+	defaultMaxBatchSize  = 1e4
+	defaultMaxQueueSize  = 1e6
+	defaultFlushInterval = 2 * time.Second
 	defaultWriteTimeout  = 30 * time.Second
 )
 

app/vmalert/remotewrite/init.go

@@ -34,10 +34,10 @@ var (
 
 	idleConnectionTimeout = flag.Duration("remoteWrite.idleConnTimeout", 50*time.Second, `Defines a duration for idle (keep-alive connections) to exist. Consider settings this value less to the value of "-http.idleConnTimeout". It must prevent possible "write: broken pipe" and "read: connection reset by peer" errors.`)
 
-	maxQueueSize  = flag.Int("remoteWrite.maxQueueSize", 1e6, "Defines the max number of pending datapoints to remote write endpoint")
-	maxBatchSize  = flag.Int("remoteWrite.maxBatchSize", 1e4, "Defines max number of timeseries to be flushed at once")
-	concurrency   = flag.Int("remoteWrite.concurrency", 4, "Defines number of writers for concurrent writing into remote write endpoint")
-	flushInterval = flag.Duration("remoteWrite.flushInterval", 5*time.Second, "Defines interval of flushes to remote write endpoint")
+	maxQueueSize  = flag.Int("remoteWrite.maxQueueSize", defaultMaxQueueSize, "Defines the max number of pending datapoints to remote write endpoint")
+	maxBatchSize  = flag.Int("remoteWrite.maxBatchSize", defaultMaxBatchSize, "Defines max number of timeseries to be flushed at once")
+	concurrency   = flag.Int("remoteWrite.concurrency", defaultConcurrency, "Defines number of writers for concurrent writing into remote write endpoint")
+	flushInterval = flag.Duration("remoteWrite.flushInterval", defaultFlushInterval, "Defines interval of flushes to remote write endpoint")
 
 	tlsInsecureSkipVerify = flag.Bool("remoteWrite.tlsInsecureSkipVerify", false, "Whether to skip tls verification when connecting to -remoteWrite.url")
 	tlsCertFile           = flag.String("remoteWrite.tlsCertFile", "", "Optional path to client-side TLS certificate file to use when connecting to -remoteWrite.url")

app/vmalert/rule/alerting.go

@@ -72,11 +72,12 @@ func NewAlertingRule(qb datasource.QuerierBuilder, group *Group, cfg config.Rule
 		EvalInterval:  group.Interval,
 		Debug:         cfg.Debug,
 		q: qb.BuildWithParams(datasource.QuerierParams{
-			DataSourceType:     group.Type.String(),
-			EvaluationInterval: group.Interval,
-			QueryParams:        group.Params,
-			Headers:            group.Headers,
-			Debug:              cfg.Debug,
+			DataSourceType:            group.Type.String(),
+			ApplyIntervalAsTimeFilter: setIntervalAsTimeFilter(group.Type.String(), cfg.Expr),
+			EvaluationInterval:        group.Interval,
+			QueryParams:               group.Params,
+			Headers:                   group.Headers,
+			Debug:                     cfg.Debug,
 		}),
 		alerts:  make(map[uint64]*notifier.Alert),
 		metrics: &alertingRuleMetrics{},

app/vmalert/rule/group.go

@@ -213,7 +213,6 @@ func (g *Group) restore(ctx context.Context, qb datasource.QuerierBuilder, ts ti
 			continue
 		}
 		q := qb.BuildWithParams(datasource.QuerierParams{
-			DataSourceType:     g.Type.String(),
 			EvaluationInterval: g.Interval,
 			QueryParams:        g.Params,
 			Headers:            g.Headers,
@@ -324,14 +323,28 @@ func (g *Group) Start(ctx context.Context, nts func() []notifier.Notifier, rw re
 		g.infof("will start in %v", sleepBeforeStart)
 
 		sleepTimer := time.NewTimer(sleepBeforeStart)
-		select {
-		case <-ctx.Done():
-			sleepTimer.Stop()
-			return
-		case <-g.doneCh:
-			sleepTimer.Stop()
-			return
-		case <-sleepTimer.C:
+	randSleep:
+		for {
+			select {
+			case <-ctx.Done():
+				sleepTimer.Stop()
+				return
+			case <-g.doneCh:
+				sleepTimer.Stop()
+				return
+			case ng := <-g.updateCh:
+				g.mu.Lock()
+				err := g.updateWith(ng)
+				if err != nil {
+					logger.Errorf("group %q: failed to update: %s", g.Name, err)
+					g.mu.Unlock()
+					continue
+				}
+				g.mu.Unlock()
+				g.infof("reload successfully")
+			case <-sleepTimer.C:
+				break randSleep
+			}
 		}
 		evalTS = evalTS.Add(sleepBeforeStart)
 	}

app/vmalert/rule/group_test.go

@@ -175,6 +175,74 @@ func TestUpdateWith(t *testing.T) {
 	})
 }
 
+func TestUpdateDuringRandSleep(t *testing.T) {
+	// enable rand sleep to test group update during sleep
+	SkipRandSleepOnGroupStart = false
+	defer func() {
+		SkipRandSleepOnGroupStart = true
+	}()
+	rule := AlertingRule{
+		Name: "jobDown",
+		Expr: "up==0",
+		Labels: map[string]string{
+			"foo": "bar",
+		},
+	}
+	g := &Group{
+		Name: "test",
+		Rules: []Rule{
+			&rule,
+		},
+		// big interval ensures big enough randSleep during start process
+		Interval: 100 * time.Hour,
+		updateCh: make(chan *Group),
+	}
+	go g.Start(context.Background(), nil, nil, nil)
+
+	rule1 := AlertingRule{
+		Name: "jobDown",
+		Expr: "up{job=\"vmagent\"}==0",
+		Labels: map[string]string{
+			"foo": "bar",
+		},
+	}
+	g1 := &Group{
+		Rules: []Rule{
+			&rule1,
+		},
+	}
+	g.updateCh <- g1
+	time.Sleep(10 * time.Millisecond)
+	g.mu.RLock()
+	if g.Rules[0].(*AlertingRule).Expr != "up{job=\"vmagent\"}==0" {
+		t.Fatalf("expected to have updated rule expr")
+	}
+	g.mu.RUnlock()
+
+	rule2 := AlertingRule{
+		Name: "jobDown",
+		Expr: "up{job=\"vmagent\"}==0",
+		Labels: map[string]string{
+			"foo": "bar",
+			"baz": "qux",
+		},
+	}
+	g2 := &Group{
+		Rules: []Rule{
+			&rule2,
+		},
+	}
+	g.updateCh <- g2
+	time.Sleep(10 * time.Millisecond)
+	g.mu.RLock()
+	if len(g.Rules[0].(*AlertingRule).Labels) != 2 {
+		t.Fatalf("expected to have updated labels")
+	}
+	g.mu.RUnlock()
+
+	g.Close()
+}
+
 func TestGroupStart(t *testing.T) {
 	const (
 		rules = `

app/vmalert/rule/recording.go

@@ -10,6 +10,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/config"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/datasource"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/utils"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logstorage"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 )
 
@@ -64,10 +65,11 @@ func NewRecordingRule(qb datasource.QuerierBuilder, group *Group, cfg config.Rul
 		File:      group.File,
 		metrics:   &recordingRuleMetrics{},
 		q: qb.BuildWithParams(datasource.QuerierParams{
-			DataSourceType:     group.Type.String(),
-			EvaluationInterval: group.Interval,
-			QueryParams:        group.Params,
-			Headers:            group.Headers,
+			DataSourceType:            group.Type.String(),
+			ApplyIntervalAsTimeFilter: setIntervalAsTimeFilter(group.Type.String(), cfg.Expr),
+			EvaluationInterval:        group.Interval,
+			QueryParams:               group.Params,
+			Headers:                   group.Headers,
 		}),
 	}
 
@@ -213,3 +215,12 @@ func (rr *RecordingRule) updateWith(r Rule) error {
 	rr.q = nr.q
 	return nil
 }
+
+// setIntervalAsTimeFilter returns true if given LogsQL has a time filter.
+func setIntervalAsTimeFilter(dType, expr string) bool {
+	if dType != "vlogs" {
+		return false
+	}
+	q, _ := logstorage.ParseStatsQuery(expr)
+	return !q.ContainAnyTimeFilter()
+}

app/vmalert/rule/recording_test.go

@@ -266,3 +266,25 @@ func TestRecordingRuleExec_Negative(t *testing.T) {
 		t.Fatalf("cannot execute recroding rule: %s", err)
 	}
 }
+
+func TestSetIntervalAsTimeFilter(t *testing.T) {
+	f := func(s, dType string, expected bool) {
+		t.Helper()
+
+		if setIntervalAsTimeFilter(dType, s) != expected {
+			t.Fatalf("unexpected result for hasTimeFilter(%q);  want %v", s, expected)
+		}
+	}
+
+	f(`* | count()`, "prometheus", false)
+
+	f(`* | count()`, "vlogs", true)
+	f(`error OR _time:5m  | count()`, "vlogs", true)
+	f(`(_time: 5m AND error) OR (_time: 5m AND warn) | count()`, "vlogs", true)
+	f(`* | error OR _time:5m | count()`, "vlogs", true)
+
+	f(`_time:5m | count()`, "vlogs", false)
+	f(`_time:2023-04-25T22:45:59Z | count()`, "vlogs", false)
+	f(`error AND _time:5m | count()`, "vlogs", false)
+	f(`* | error AND _time:5m | count()`, "vlogs", false)
+}

app/vmalert/web_types.go

@@ -215,8 +215,10 @@ func recordingToAPI(rr *rule.RecordingRule) apiRule {
 		Updates:           rule.GetAllRuleState(rr),
 
 		// encode as strings to avoid rounding
-		ID:      fmt.Sprintf("%d", rr.ID()),
-		GroupID: fmt.Sprintf("%d", rr.GroupID),
+		ID:        fmt.Sprintf("%d", rr.ID()),
+		GroupID:   fmt.Sprintf("%d", rr.GroupID),
+		GroupName: rr.GroupName,
+		File:      rr.File,
 	}
 	if lastState.Err != nil {
 		r.LastError = lastState.Err.Error()

app/vmalert/web_types_test.go

@@ -1,9 +1,56 @@
 package main
 
 import (
+	"fmt"
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/config"
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/datasource"
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/rule"
+	"reflect"
 	"testing"
 )
 
+func TestRecordingToApi(t *testing.T) {
+	fq := &datasource.FakeQuerier{}
+	fq.Add(datasource.Metric{
+		Values: []float64{1}, Timestamps: []int64{0},
+	})
+	g := &rule.Group{
+		Name:        "group",
+		File:        "rules.yaml",
+		Concurrency: 1,
+	}
+
+	entriesLimit := 44
+	rr := rule.NewRecordingRule(fq, g, config.Rule{
+		ID:                 1248,
+		Record:             "record_name",
+		Expr:               "up",
+		Labels:             map[string]string{"label": "value"},
+		UpdateEntriesLimit: &entriesLimit,
+	})
+
+	expectedRes := apiRule{
+		Name:           "record_name",
+		Query:          "up",
+		Labels:         map[string]string{"label": "value"},
+		Health:         "ok",
+		Type:           ruleTypeRecording,
+		DatasourceType: "prometheus",
+		ID:             "1248",
+		GroupID:        fmt.Sprintf("%d", g.ID()),
+		GroupName:      "group",
+		File:           "rules.yaml",
+		MaxUpdates:     44,
+		Updates:        make([]rule.StateEntry, 0),
+	}
+
+	res := recordingToAPI(rr)
+
+	if !reflect.DeepEqual(res, expectedRes) {
+		t.Fatalf("expected to have: \n%v;\ngot: \n%v", expectedRes, res)
+	}
+}
+
 func TestUrlValuesToStrings(t *testing.T) {
 	mapQueryParams := map[string][]string{
 		"param1": {"param1"},

app/vmctl/vm_native.go

@@ -120,7 +120,7 @@ func (p *vmNativeProcessor) runSingle(ctx context.Context, f native.Filter, srcU
 	if p.disablePerMetricRequests {
 		pr := bar.NewProxyReader(reader)
 		if pr != nil {
-			reader = bar.NewProxyReader(reader)
+			reader = pr
 			fmt.Printf("Continue import process with filter %s:\n", f.String())
 		}
 	}
@@ -193,7 +193,15 @@ func (p *vmNativeProcessor) runBackfilling(ctx context.Context, tenantID string,
 	var metrics = map[string][][]time.Time{
 		"": ranges,
 	}
+
+	format := nativeSingleProcessTpl
+	barPrefix := "Requests to make"
+	if p.interCluster {
+		barPrefix = fmt.Sprintf("Requests to make for tenant %s", tenantID)
+	}
+
 	if !p.disablePerMetricRequests {
+		format = fmt.Sprintf(nativeWithBackoffTpl, barPrefix)
 		metrics, err = p.explore(ctx, p.src, tenantID, ranges)
 		if err != nil {
 			return fmt.Errorf("failed to explore metric names: %s", err)
@@ -223,15 +231,7 @@ func (p *vmNativeProcessor) runBackfilling(ctx context.Context, tenantID string,
 		log.Print(foundSeriesMsg)
 	}
 
-	barPrefix := "Requests to make"
-	if p.interCluster {
-		barPrefix = fmt.Sprintf("Requests to make for tenant %s", tenantID)
-	}
-
-	bar := barpool.NewSingleProgress(fmt.Sprintf(nativeWithBackoffTpl, barPrefix), requestsToMake)
-	if p.disablePerMetricRequests {
-		bar = barpool.NewSingleProgress(nativeSingleProcessTpl, 0)
-	}
+	bar := barpool.NewSingleProgress(format, requestsToMake)
 	bar.Start()
 	defer bar.Finish()
 
@@ -362,16 +362,17 @@ func byteCountSI(b int64) string {
 }
 
 func buildMatchWithFilter(filter string, metricName string) (string, error) {
-	if filter == metricName {
-		return filter, nil
-	}
-	nameFilter := fmt.Sprintf("__name__=%q", metricName)
-
 	tfss, err := searchutils.ParseMetricSelector(filter)
 	if err != nil {
 		return "", err
 	}
 
+	if filter == metricName || metricName == "" {
+		return filter, nil
+	}
+
+	nameFilter := fmt.Sprintf("__name__=%q", metricName)
+
 	var filters []string
 	for _, tfs := range tfss {
 		var a []string

app/vmctl/vm_native_test.go

@@ -293,6 +293,9 @@ func TestBuildMatchWithFilter_Success(t *testing.T) {
 	// only label with regexp
 	f(`{cluster=~".*"}`, "http_request_count_total", `{cluster=~".*",__name__="http_request_count_total"}`)
 
+	// only label with regexp, empty metric name
+	f(`{cluster=~".*"}`, "", `{cluster=~".*"}`)
+
 	// many labels in filter with regexp
 	f(`{cluster=~".*",job!=""}`, "http_request_count_total", `{cluster=~".*",job!="",__name__="http_request_count_total"}`)
 
@@ -307,4 +310,7 @@ func TestBuildMatchWithFilter_Success(t *testing.T) {
 
 	// metric name has negative regexp
 	f(`{__name__!~".*"}`, "http_request_count_total", `{__name__="http_request_count_total"}`)
+
+	// metric name has negative regex and metric name is empty
+	f(`{__name__!~".*"}`, "", `{__name__!~".*"}`)
 }

app/vmselect/main.go

@@ -60,6 +60,7 @@ func Init() {
 	fs.RemoveDirContents(tmpDirPath)
 	netstorage.InitTmpBlocksDir(tmpDirPath)
 	promql.InitRollupResultCache(*vmstorage.DataPath + "/cache/rollupResult")
+	prometheus.InitMaxUniqueTimeseries(*maxConcurrentRequests)
 
 	concurrencyLimitCh = make(chan struct{}, *maxConcurrentRequests)
 	initVMAlertProxy()
@@ -82,6 +83,9 @@ var (
 	_ = metrics.NewGauge(`vm_concurrent_select_current`, func() float64 {
 		return float64(len(concurrencyLimitCh))
 	})
+	_ = metrics.NewGauge(`vm_search_max_unique_timeseries`, func() float64 {
+		return float64(prometheus.GetMaxUniqueTimeSeries())
+	})
 )
 
 //go:embed vmui

app/vmselect/prometheus/prometheus.go

@@ -12,6 +12,10 @@ import (
 	"sync/atomic"
 	"time"
 
+	"github.com/VictoriaMetrics/metrics"
+	"github.com/VictoriaMetrics/metricsql"
+	"github.com/valyala/fastjson/fastfloat"
+
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/netstorage"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/promql"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/querystats"
@@ -23,11 +27,10 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httputils"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/memory"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/querytracer"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
-	"github.com/VictoriaMetrics/metrics"
-	"github.com/VictoriaMetrics/metricsql"
-	"github.com/valyala/fastjson/fastfloat"
 )
 
 var (
@@ -47,7 +50,8 @@ var (
 	maxStepForPointsAdjustment = flag.Duration("search.maxStepForPointsAdjustment", time.Minute, "The maximum step when /api/v1/query_range handler adjusts "+
 		"points with timestamps closer than -search.latencyOffset to the current time. The adjustment is needed because such points may contain incomplete data")
 
-	maxUniqueTimeseries = flag.Int("search.maxUniqueTimeseries", 300e3, "The maximum number of unique time series, which can be selected during /api/v1/query and /api/v1/query_range queries. This option allows limiting memory usage")
+	maxUniqueTimeseries = flag.Int("search.maxUniqueTimeseries", 0, "The maximum number of unique time series, which can be selected during /api/v1/query and /api/v1/query_range queries. This option allows limiting memory usage. "+
+		"When set to zero, the limit is automatically calculated based on -search.maxConcurrentRequests (inversely proportional) and memory available to the process (proportional).")
 	maxFederateSeries   = flag.Int("search.maxFederateSeries", 1e6, "The maximum number of time series, which can be returned from /federate. This option allows limiting memory usage")
 	maxExportSeries     = flag.Int("search.maxExportSeries", 10e6, "The maximum number of time series, which can be returned from /api/v1/export* APIs. This option allows limiting memory usage")
 	maxTSDBStatusSeries = flag.Int("search.maxTSDBStatusSeries", 10e6, "The maximum number of time series, which can be processed during the call to /api/v1/status/tsdb. This option allows limiting memory usage")
@@ -792,7 +796,7 @@ func QueryHandler(qt *querytracer.Tracer, startTime time.Time, w http.ResponseWr
 		End:                 start,
 		Step:                step,
 		MaxPointsPerSeries:  *maxPointsPerTimeseries,
-		MaxSeries:           *maxUniqueTimeseries,
+		MaxSeries:           GetMaxUniqueTimeSeries(),
 		QuotedRemoteAddr:    httpserver.GetQuotedRemoteAddr(r),
 		Deadline:            deadline,
 		MayCache:            mayCache,
@@ -900,7 +904,7 @@ func queryRangeHandler(qt *querytracer.Tracer, startTime time.Time, w http.Respo
 		End:                 end,
 		Step:                step,
 		MaxPointsPerSeries:  *maxPointsPerTimeseries,
-		MaxSeries:           *maxUniqueTimeseries,
+		MaxSeries:           GetMaxUniqueTimeSeries(),
 		QuotedRemoteAddr:    httpserver.GetQuotedRemoteAddr(r),
 		Deadline:            deadline,
 		MayCache:            mayCache,
@@ -1246,3 +1250,40 @@ func (sw *scalableWriter) flush() error {
 	})
 	return sw.bw.Flush()
 }
+
+var (
+	maxUniqueTimeseriesValueOnce sync.Once
+	maxUniqueTimeseriesValue     int
+)
+
+// InitMaxUniqueTimeseries init the max metrics limit calculated by available resources.
+// The calculation is split into calculateMaxUniqueTimeSeriesForResource for unit testing.
+func InitMaxUniqueTimeseries(maxConcurrentRequests int) {
+	maxUniqueTimeseriesValueOnce.Do(func() {
+		maxUniqueTimeseriesValue = *maxUniqueTimeseries
+		if maxUniqueTimeseriesValue <= 0 {
+			maxUniqueTimeseriesValue = calculateMaxUniqueTimeSeriesForResource(maxConcurrentRequests, memory.Remaining())
+		}
+	})
+}
+
+// calculateMaxUniqueTimeSeriesForResource calculate the max metrics limit calculated by available resources.
+func calculateMaxUniqueTimeSeriesForResource(maxConcurrentRequests, remainingMemory int) int {
+	if maxConcurrentRequests <= 0 {
+		// This line should NOT be reached unless the user has set an incorrect `search.maxConcurrentRequests`.
+		// In such cases, fallback to unlimited.
+		logger.Warnf("limiting -search.maxUniqueTimeseries to %v because -search.maxConcurrentRequests=%d.", 2e9, maxConcurrentRequests)
+		return 2e9
+	}
+
+	// Calculate the max metrics limit for a single request in the worst-case concurrent scenario.
+	// The approximate size of 1 unique series that could occupy in the vmstorage is 200 bytes.
+	mts := remainingMemory / 200 / maxConcurrentRequests
+	logger.Infof("limiting -search.maxUniqueTimeseries to %d according to -search.maxConcurrentRequests=%d and remaining memory=%d bytes. To increase the limit, reduce -search.maxConcurrentRequests or increase memory available to the process.", mts, maxConcurrentRequests, remainingMemory)
+	return mts
+}
+
+// GetMaxUniqueTimeSeries returns the max metrics limit calculated by available resources.
+func GetMaxUniqueTimeSeries() int {
+	return maxUniqueTimeseriesValue
+}

app/vmselect/prometheus/prometheus_test.go

@@ -4,6 +4,7 @@ import (
 	"math"
 	"net/http"
 	"reflect"
+	"runtime"
 	"testing"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/netstorage"
@@ -229,3 +230,29 @@ func TestGetLatencyOffsetMillisecondsFailure(t *testing.T) {
 	}
 	f("http://localhost?latency_offset=foobar")
 }
+
+func TestCalculateMaxMetricsLimitByResource(t *testing.T) {
+	f := func(maxConcurrentRequest, remainingMemory, expect int) {
+		t.Helper()
+		maxMetricsLimit := calculateMaxUniqueTimeSeriesForResource(maxConcurrentRequest, remainingMemory)
+		if maxMetricsLimit != expect {
+			t.Fatalf("unexpected max metrics limit: got %d, want %d", maxMetricsLimit, expect)
+		}
+	}
+
+	// Skip when GOARCH=386
+	if runtime.GOARCH != "386" {
+		// 8 CPU & 32 GiB
+		f(16, int(math.Round(32*1024*1024*1024*0.4)), 4294967)
+		// 4 CPU & 32 GiB
+		f(8, int(math.Round(32*1024*1024*1024*0.4)), 8589934)
+	}
+
+	// 2 CPU & 4 GiB
+	f(4, int(math.Round(4*1024*1024*1024*0.4)), 2147483)
+
+	// other edge cases
+	f(0, int(math.Round(4*1024*1024*1024*0.4)), 2e9)
+	f(4, 0, 0)
+
+}

app/vmselect/promql/eval.go

@@ -44,7 +44,7 @@ var (
 		"See also -search.logSlowQueryDuration and -search.maxMemoryPerQuery")
 	noStaleMarkers = flag.Bool("search.noStaleMarkers", false, "Set this flag to true if the database doesn't contain Prometheus stale markers, "+
 		"so there is no need in spending additional CPU time on its handling. Staleness markers may exist only in data obtained from Prometheus scrape targets")
-	minWindowForInstantRollupOptimization = flagutil.NewDuration("search.minWindowForInstantRollupOptimization", "3h", "Enable cache-based optimization for repeated queries "+
+	minWindowForInstantRollupOptimization = flag.Duration("search.minWindowForInstantRollupOptimization", time.Hour*3, "Enable cache-based optimization for repeated queries "+
 		"to /api/v1/query (aka instant queries), which contain rollup functions with lookbehind window exceeding the given value")
 )
 

app/vmselect/searchutils/searchutils.go

@@ -15,7 +15,7 @@ import (
 
 var (
 	maxExportDuration        = flag.Duration("search.maxExportDuration", time.Hour*24*30, "The maximum duration for /api/v1/export call")
-	maxQueryDuration         = flag.Duration("search.maxQueryDuration", time.Second*30, "The maximum duration for query execution. It can be overridden on a per-query basis via 'timeout' query arg")
+	maxQueryDuration         = flag.Duration("search.maxQueryDuration", time.Second*30, "The maximum duration for query execution. It can be overridden to a smaller value on a per-query basis via 'timeout' query arg")
 	maxStatusRequestDuration = flag.Duration("search.maxStatusRequestDuration", time.Minute*5, "The maximum duration for /api/v1/status/* requests")
 	maxLabelsAPIDuration     = flag.Duration("search.maxLabelsAPIDuration", time.Second*5, "The maximum duration for /api/v1/labels, /api/v1/label/.../values and /api/v1/series requests. "+
 		"See also -search.maxLabelsAPISeries and -search.ignoreExtraFiltersAtLabelsAPI")

app/vmselect/vmui/asset-manifest.json

@@ -1,13 +1,13 @@
 {
   "files": {
-    "main.css": "./static/css/main.d871147a.css",
-    "main.js": "./static/js/main.621c4b4d.js",
+    "main.css": "./static/css/main.d781989c.css",
+    "main.js": "./static/js/main.68e2aae8.js",
     "static/js/685.f772060c.chunk.js": "./static/js/685.f772060c.chunk.js",
     "static/media/MetricsQL.md": "./static/media/MetricsQL.a00044c91d9781cf8557.md",
     "index.html": "./index.html"
   },
   "entrypoints": [
-    "static/css/main.d871147a.css",
-    "static/js/main.621c4b4d.js"
+    "static/css/main.d781989c.css",
+    "static/js/main.68e2aae8.js"
   ]
 }

app/vmselect/vmui/index.html

@@ -1 +1 @@
-<!doctype html><html lang="en"><head><meta charset="utf-8"/><link rel="icon" href="./favicon.svg"/><link rel="apple-touch-icon" href="./favicon.svg"/><link rel="mask-icon" href="./favicon.svg" color="#000000"><meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=5"/><meta name="theme-color" content="#000000"/><meta name="description" content="Explore and troubleshoot your VictoriaMetrics data"/><link rel="manifest" href="./manifest.json"/><title>vmui</title><script src="./dashboards/index.js" type="module"></script><meta name="twitter:card" content="summary"><meta name="twitter:title" content="UI for VictoriaMetrics"><meta name="twitter:site" content="@https://victoriametrics.com/"><meta name="twitter:description" content="Explore and troubleshoot your VictoriaMetrics data"><meta name="twitter:image" content="./preview.jpg"><meta property="og:type" content="website"><meta property="og:title" content="UI for VictoriaMetrics"><meta property="og:url" content="https://victoriametrics.com/"><meta property="og:description" content="Explore and troubleshoot your VictoriaMetrics data"><script defer="defer" src="./static/js/main.621c4b4d.js"></script><link href="./static/css/main.d871147a.css" rel="stylesheet"></head><body><noscript>You need to enable JavaScript to run this app.</noscript><div id="root"></div></body></html>
+<!doctype html><html lang="en"><head><meta charset="utf-8"/><link rel="icon" href="./favicon.svg"/><link rel="apple-touch-icon" href="./favicon.svg"/><link rel="mask-icon" href="./favicon.svg" color="#000000"><meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=5"/><meta name="theme-color" content="#000000"/><meta name="description" content="Explore and troubleshoot your VictoriaMetrics data"/><link rel="manifest" href="./manifest.json"/><title>vmui</title><script src="./dashboards/index.js" type="module"></script><meta name="twitter:card" content="summary"><meta name="twitter:title" content="UI for VictoriaMetrics"><meta name="twitter:site" content="@https://victoriametrics.com/"><meta name="twitter:description" content="Explore and troubleshoot your VictoriaMetrics data"><meta name="twitter:image" content="./preview.jpg"><meta property="og:type" content="website"><meta property="og:title" content="UI for VictoriaMetrics"><meta property="og:url" content="https://victoriametrics.com/"><meta property="og:description" content="Explore and troubleshoot your VictoriaMetrics data"><script defer="defer" src="./static/js/main.68e2aae8.js"></script><link href="./static/css/main.d781989c.css" rel="stylesheet"></head><body><noscript>You need to enable JavaScript to run this app.</noscript><div id="root"></div></body></html>

app/vmstorage/main.go

@@ -27,11 +27,11 @@ import (
 )
 
 var (
-	retentionPeriod   = flagutil.NewDuration("retentionPeriod", "1", "Data with timestamps outside the retentionPeriod is automatically deleted. The minimum retentionPeriod is 24h or 1d. See also -retentionFilter")
+	retentionPeriod   = flagutil.NewRetentionDuration("retentionPeriod", "1", "Data with timestamps outside the retentionPeriod is automatically deleted. The minimum retentionPeriod is 24h or 1d. See also -retentionFilter")
 	snapshotAuthKey   = flagutil.NewPassword("snapshotAuthKey", "authKey, which must be passed in query string to /snapshot* pages. It overrides -httpAuth.*")
 	forceMergeAuthKey = flagutil.NewPassword("forceMergeAuthKey", "authKey, which must be passed in query string to /internal/force_merge pages. It overrides -httpAuth.*")
 	forceFlushAuthKey = flagutil.NewPassword("forceFlushAuthKey", "authKey, which must be passed in query string to /internal/force_flush pages. It overrides -httpAuth.*")
-	snapshotsMaxAge   = flagutil.NewDuration("snapshotsMaxAge", "0", "Automatically delete snapshots older than -snapshotsMaxAge if it is set to non-zero duration. Make sure that backup process has enough time to finish the backup before the corresponding snapshot is automatically deleted")
+	snapshotsMaxAge   = flagutil.NewRetentionDuration("snapshotsMaxAge", "0", "Automatically delete snapshots older than -snapshotsMaxAge if it is set to non-zero duration. Make sure that backup process has enough time to finish the backup before the corresponding snapshot is automatically deleted")
 	_                 = flag.Duration("snapshotCreateTimeout", 0, "Deprecated: this flag does nothing")
 
 	precisionBits = flag.Int("precisionBits", 64, "The number of precision bits to store per each value. Lower precision bits improves data compression at the cost of precision loss")
@@ -67,6 +67,8 @@ var (
 		"See https://docs.victoriametrics.com/single-server-victoriametrics/#cache-tuning")
 	cacheSizeIndexDBDataBlocks = flagutil.NewBytes("storage.cacheSizeIndexDBDataBlocks", 0, "Overrides max size for indexdb/dataBlocks cache. "+
 		"See https://docs.victoriametrics.com/single-server-victoriametrics/#cache-tuning")
+	cacheSizeIndexDBDataBlocksSparse = flagutil.NewBytes("storage.cacheSizeIndexDBDataBlocksSparse", 0, "Overrides max size for indexdb/dataBlocksSparse cache. "+
+		"See https://docs.victoriametrics.com/single-server-victoriametrics/#cache-tuning")
 	cacheSizeIndexDBTagFilters = flagutil.NewBytes("storage.cacheSizeIndexDBTagFilters", 0, "Overrides max size for indexdb/tagFiltersToMetricIDs cache. "+
 		"See https://docs.victoriametrics.com/single-server-victoriametrics/#cache-tuning")
 )
@@ -100,6 +102,7 @@ func Init(resetCacheIfNeeded func(mrs []storage.MetricRow)) {
 	storage.SetTagFiltersCacheSize(cacheSizeIndexDBTagFilters.IntN())
 	mergeset.SetIndexBlocksCacheSize(cacheSizeIndexDBIndexBlocks.IntN())
 	mergeset.SetDataBlocksCacheSize(cacheSizeIndexDBDataBlocks.IntN())
+	mergeset.SetDataBlocksSparseCacheSize(cacheSizeIndexDBDataBlocksSparse.IntN())
 
 	if retentionPeriod.Duration() < 24*time.Hour {
 		logger.Fatalf("-retentionPeriod cannot be smaller than a day; got %s", retentionPeriod)
@@ -581,6 +584,7 @@ func writeStorageMetrics(w io.Writer, strg *storage.Storage) {
 	metrics.WriteGaugeUint64(w, `vm_cache_entries{type="storage/next_day_metric_ids"}`, m.NextDayMetricIDCacheSize)
 	metrics.WriteGaugeUint64(w, `vm_cache_entries{type="storage/indexBlocks"}`, tm.IndexBlocksCacheSize)
 	metrics.WriteGaugeUint64(w, `vm_cache_entries{type="indexdb/dataBlocks"}`, idbm.DataBlocksCacheSize)
+	metrics.WriteGaugeUint64(w, `vm_cache_entries{type="indexdb/dataBlocksSparse"}`, idbm.DataBlocksSparseCacheSize)
 	metrics.WriteGaugeUint64(w, `vm_cache_entries{type="indexdb/indexBlocks"}`, idbm.IndexBlocksCacheSize)
 	metrics.WriteGaugeUint64(w, `vm_cache_entries{type="indexdb/tagFiltersToMetricIDs"}`, idbm.TagFiltersToMetricIDsCacheSize)
 	metrics.WriteGaugeUint64(w, `vm_cache_entries{type="storage/regexps"}`, uint64(storage.RegexpCacheSize()))
@@ -592,6 +596,7 @@ func writeStorageMetrics(w io.Writer, strg *storage.Storage) {
 	metrics.WriteGaugeUint64(w, `vm_cache_size_bytes{type="storage/metricName"}`, m.MetricNameCacheSizeBytes)
 	metrics.WriteGaugeUint64(w, `vm_cache_size_bytes{type="storage/indexBlocks"}`, tm.IndexBlocksCacheSizeBytes)
 	metrics.WriteGaugeUint64(w, `vm_cache_size_bytes{type="indexdb/dataBlocks"}`, idbm.DataBlocksCacheSizeBytes)
+	metrics.WriteGaugeUint64(w, `vm_cache_size_bytes{type="indexdb/dataBlocksSparse"}`, idbm.DataBlocksSparseCacheSizeBytes)
 	metrics.WriteGaugeUint64(w, `vm_cache_size_bytes{type="indexdb/indexBlocks"}`, idbm.IndexBlocksCacheSizeBytes)
 	metrics.WriteGaugeUint64(w, `vm_cache_size_bytes{type="storage/date_metricID"}`, m.DateMetricIDCacheSizeBytes)
 	metrics.WriteGaugeUint64(w, `vm_cache_size_bytes{type="storage/hour_metric_ids"}`, m.HourMetricIDCacheSizeBytes)
@@ -606,6 +611,7 @@ func writeStorageMetrics(w io.Writer, strg *storage.Storage) {
 	metrics.WriteGaugeUint64(w, `vm_cache_size_max_bytes{type="storage/metricName"}`, m.MetricNameCacheSizeMaxBytes)
 	metrics.WriteGaugeUint64(w, `vm_cache_size_max_bytes{type="storage/indexBlocks"}`, tm.IndexBlocksCacheSizeMaxBytes)
 	metrics.WriteGaugeUint64(w, `vm_cache_size_max_bytes{type="indexdb/dataBlocks"}`, idbm.DataBlocksCacheSizeMaxBytes)
+	metrics.WriteGaugeUint64(w, `vm_cache_size_max_bytes{type="indexdb/dataBlocksSparse"}`, idbm.DataBlocksSparseCacheSizeMaxBytes)
 	metrics.WriteGaugeUint64(w, `vm_cache_size_max_bytes{type="indexdb/indexBlocks"}`, idbm.IndexBlocksCacheSizeMaxBytes)
 	metrics.WriteGaugeUint64(w, `vm_cache_size_max_bytes{type="indexdb/tagFiltersToMetricIDs"}`, idbm.TagFiltersToMetricIDsCacheSizeMaxBytes)
 	metrics.WriteGaugeUint64(w, `vm_cache_size_max_bytes{type="storage/regexps"}`, uint64(storage.RegexpCacheMaxSizeBytes()))
@@ -616,6 +622,7 @@ func writeStorageMetrics(w io.Writer, strg *storage.Storage) {
 	metrics.WriteCounterUint64(w, `vm_cache_requests_total{type="storage/metricName"}`, m.MetricNameCacheRequests)
 	metrics.WriteCounterUint64(w, `vm_cache_requests_total{type="storage/indexBlocks"}`, tm.IndexBlocksCacheRequests)
 	metrics.WriteCounterUint64(w, `vm_cache_requests_total{type="indexdb/dataBlocks"}`, idbm.DataBlocksCacheRequests)
+	metrics.WriteCounterUint64(w, `vm_cache_requests_total{type="indexdb/dataBlocksSparse"}`, idbm.DataBlocksSparseCacheRequests)
 	metrics.WriteCounterUint64(w, `vm_cache_requests_total{type="indexdb/indexBlocks"}`, idbm.IndexBlocksCacheRequests)
 	metrics.WriteCounterUint64(w, `vm_cache_requests_total{type="indexdb/tagFiltersToMetricIDs"}`, idbm.TagFiltersToMetricIDsCacheRequests)
 	metrics.WriteCounterUint64(w, `vm_cache_requests_total{type="storage/regexps"}`, storage.RegexpCacheRequests())
@@ -626,6 +633,7 @@ func writeStorageMetrics(w io.Writer, strg *storage.Storage) {
 	metrics.WriteCounterUint64(w, `vm_cache_misses_total{type="storage/metricName"}`, m.MetricNameCacheMisses)
 	metrics.WriteCounterUint64(w, `vm_cache_misses_total{type="storage/indexBlocks"}`, tm.IndexBlocksCacheMisses)
 	metrics.WriteCounterUint64(w, `vm_cache_misses_total{type="indexdb/dataBlocks"}`, idbm.DataBlocksCacheMisses)
+	metrics.WriteCounterUint64(w, `vm_cache_misses_total{type="indexdb/dataBlocksSparse"}`, idbm.DataBlocksSparseCacheMisses)
 	metrics.WriteCounterUint64(w, `vm_cache_misses_total{type="indexdb/indexBlocks"}`, idbm.IndexBlocksCacheMisses)
 	metrics.WriteCounterUint64(w, `vm_cache_misses_total{type="indexdb/tagFiltersToMetricIDs"}`, idbm.TagFiltersToMetricIDsCacheMisses)
 	metrics.WriteCounterUint64(w, `vm_cache_misses_total{type="storage/regexps"}`, storage.RegexpCacheMisses())

app/vmui/packages/vmui/src/components/Chart/BarHitsChart/BarHitsChart.tsx

@@ -33,12 +33,15 @@ const BarHitsChart: FC<Props> = ({ logHits, data: _data, period, setPeriod, onAp
     graphStyle: GRAPH_STYLES.LINE_STEPPED,
     stacked: false,
     fill: false,
+    hideChart: false,
   });
 
   const { xRange, setPlotScale } = usePlotScale({ period, setPeriod });
   const { onReadyChart, isPanning } = useReadyChart(setPlotScale);
   useZoomChart({ uPlotInst, xRange, setPlotScale });
 
+  const isEmptyData = useMemo(() => _data.every(d => d.length === 0), [_data]);
+
   const { data, bands } = useMemo(() => {
     return graphOptions.stacked ? stack(_data, () => false) : { data: _data, bands: [] };
   }, [graphOptions, _data]);
@@ -88,26 +91,33 @@ const BarHitsChart: FC<Props> = ({ logHits, data: _data, period, setPeriod, onAp
   }, [data]);
 
   return (
-    <div className="vm-bar-hits-chart__wrapper">
-      <div
-        className={classNames({
-          "vm-bar-hits-chart": true,
-          "vm-bar-hits-chart_panning": isPanning
-        })}
-        ref={containerRef}
-      >
+    <div
+      className={classNames({
+        "vm-bar-hits-chart__wrapper": true,
+        "vm-bar-hits-chart__wrapper_hidden": graphOptions.hideChart
+      })}
+    >
+      {!graphOptions.hideChart && (
         <div
-          className="vm-line-chart__u-plot"
-          ref={uPlotRef}
-        />
-        <BarHitsTooltip
-          uPlotInst={uPlotInst}
-          data={_data}
-          focusDataIdx={focusDataIdx}
-        />
-      </div>
+          className={classNames({
+            "vm-bar-hits-chart": true,
+            "vm-bar-hits-chart_panning": isPanning
+          })}
+          ref={containerRef}
+        >
+          <div
+            className="vm-line-chart__u-plot"
+            ref={uPlotRef}
+          />
+          <BarHitsTooltip
+            uPlotInst={uPlotInst}
+            data={_data}
+            focusDataIdx={focusDataIdx}
+          />
+        </div>
+      )}
       <BarHitsOptions onChange={setGraphOptions}/>
-      {uPlotInst && (
+      {uPlotInst && !isEmptyData && !graphOptions.hideChart && (
         <BarHitsLegend
           uPlotInst={uPlotInst}
           onApplyFilter={onApplyFilter}

app/vmui/packages/vmui/src/components/Chart/BarHitsChart/BarHitsOptions/BarHitsOptions.tsx

@@ -6,7 +6,7 @@ import useStateSearchParams from "../../../../hooks/useStateSearchParams";
 import { useSearchParams } from "react-router-dom";
 import Button from "../../../Main/Button/Button";
 import classNames from "classnames";
-import { SettingsIcon } from "../../../Main/Icons";
+import { SettingsIcon, VisibilityIcon, VisibilityOffIcon } from "../../../Main/Icons";
 import Tooltip from "../../../Main/Tooltip/Tooltip";
 import Popper from "../../../Main/Popper/Popper";
 import useBoolean from "../../../../hooks/useBoolean";
@@ -27,12 +27,14 @@ const BarHitsOptions: FC<Props> = ({ onChange }) => {
   const [graphStyle, setGraphStyle] = useStateSearchParams(GRAPH_STYLES.LINE_STEPPED, "graph");
   const [stacked, setStacked] = useStateSearchParams(false, "stacked");
   const [fill, setFill] = useStateSearchParams(false, "fill");
+  const [hideChart, setHideChart] = useStateSearchParams(false, "hide_chart");
 
   const options: GraphOptions = useMemo(() => ({
     graphStyle,
     stacked,
     fill,
-  }), [graphStyle, stacked, fill]);
+    hideChart,
+  }), [graphStyle, stacked, fill, hideChart]);
 
   const handleChangeGraphStyle = (val: string) => () => {
     setGraphStyle(val as GRAPH_STYLES);
@@ -52,24 +54,41 @@ const BarHitsOptions: FC<Props> = ({ onChange }) => {
     setSearchParams(searchParams);
   };
 
+  const toggleHideChart = () => {
+    setHideChart(prev => {
+      const newVal = !prev;
+      newVal ? searchParams.set("hide_chart", "true") : searchParams.delete("hide_chart");
+      setSearchParams(searchParams);
+      return newVal;
+    });
+  };
+
   useEffect(() => {
     onChange(options);
   }, [options]);
 
   return (
-    <div
-      className="vm-bar-hits-options"
-      ref={optionsButtonRef}
-    >
-      <Tooltip title="Graph settings">
+    <div className="vm-bar-hits-options">
+      <Tooltip title={hideChart ? "Show chart and resume hits updates" : "Hide chart and pause hits updates"}>
         <Button
           variant="text"
           color="primary"
-          startIcon={<SettingsIcon/>}
-          onClick={toggleOpenOptions}
+          startIcon={hideChart ? <VisibilityOffIcon/> : <VisibilityIcon/>}
+          onClick={toggleHideChart}
           ariaLabel="settings"
         />
       </Tooltip>
+      <div ref={optionsButtonRef}>
+        <Tooltip title="Graph settings">
+          <Button
+            variant="text"
+            color="primary"
+            startIcon={<SettingsIcon/>}
+            onClick={toggleOpenOptions}
+            ariaLabel="settings"
+          />
+        </Tooltip>
+      </div>
       <Popper
         open={openOptions}
         placement="bottom-right"

app/vmui/packages/vmui/src/components/Chart/BarHitsChart/BarHitsOptions/style.scss

@@ -1,6 +1,8 @@
 @use "src/styles/variables" as *;
 
 .vm-bar-hits-options {
+  display: flex;
+  align-items: center;
   position: absolute;
   top: $padding-small;
   right: $padding-small;

app/vmui/packages/vmui/src/components/Chart/BarHitsChart/style.scss

@@ -10,6 +10,10 @@
     flex-direction: column;
     width: 100%;
     height: 100%;
+
+    &_hidden {
+      min-height: 90px;
+    }
   }
 
   &_panning {

app/vmui/packages/vmui/src/components/Chart/BarHitsChart/types.ts

@@ -9,4 +9,5 @@ export interface GraphOptions {
   graphStyle: GRAPH_STYLES;
   stacked: boolean;
   fill: boolean;
+  hideChart: boolean;
 }

app/vmui/packages/vmui/src/hooks/useFetchFlags.ts

@@ -1,7 +1,6 @@
 import { useAppDispatch, useAppState } from "../state/common/StateContext";
 import { useEffect, useState } from "preact/compat";
 import { ErrorTypes } from "../types";
-import { getUrlWithoutTenant } from "../utils/tenants";
 
 const useFetchFlags = () => {
   const { serverUrl } = useAppState();
@@ -17,7 +16,7 @@ const useFetchFlags = () => {
       setIsLoading(true);
 
       try {
-        const url = getUrlWithoutTenant(serverUrl);
+        const url = new URL(serverUrl).origin;
         const response = await fetch(`${url}/flags`);
         const data = await response.text();
         const flags = data.split("\n").filter(flag => flag.trim() !== "")

app/vmui/packages/vmui/src/pages/CardinalityPanel/CardinalityTotals/CardinalityTotals.tsx

@@ -41,10 +41,10 @@ const CardinalityTotals: FC<CardinalityTotalsProps> = ({
       value: totalSeries.toLocaleString("en-US"),
       dynamic: (!totalSeries || !totalSeriesPrev || isPrometheus) ? "" : `${dynamic.toFixed(2)}%`,
       display: !focusLabel,
-      info: `The total number of active time series. 
+      info: `The total number of unique time series for a selected day.
              A time series is uniquely identified by its name plus a set of its labels. 
              For example, temperature{city="NY",country="US"} and temperature{city="SF",country="US"} 
-             are two distinct series, since they differ by the city label.`
+             are two distinct series, since they differ by the "city" label.`
     },
     {
       title: "Percentage from total",

app/vmui/packages/vmui/src/pages/ExploreLogs/ExploreLogs.tsx

@@ -1,4 +1,4 @@
-import React, { FC, useCallback, useEffect, useState } from "preact/compat";
+import React, { FC, useCallback, useEffect, useMemo, useState } from "preact/compat";
 import ExploreLogsBody from "./ExploreLogsBody/ExploreLogsBody";
 import useStateSearchParams from "../../hooks/useStateSearchParams";
 import useSearchParamsFromObject from "../../hooks/useSearchParamsFromObject";
@@ -14,6 +14,7 @@ import ExploreLogsBarChart from "./ExploreLogsBarChart/ExploreLogsBarChart";
 import { useFetchLogHits } from "./hooks/useFetchLogHits";
 import { LOGS_ENTRIES_LIMIT } from "../../constants/logs";
 import { getTimeperiodForDuration, relativeTimeOptions } from "../../utils/time";
+import { useSearchParams } from "react-router-dom";
 
 const storageLimit = Number(getFromStorage("LOGS_LIMIT"));
 const defaultLimit = isNaN(storageLimit) ? LOGS_ENTRIES_LIMIT : storageLimit;
@@ -22,10 +23,12 @@ const ExploreLogs: FC = () => {
   const { serverUrl } = useAppState();
   const { duration, relativeTime, period: periodState } = useTimeState();
   const { setSearchParamsFromKeys } = useSearchParamsFromObject();
+  const [searchParams] = useSearchParams();
+  const hideChart = useMemo(() => searchParams.get("hide_chart"), [searchParams]);
 
   const [limit, setLimit] = useStateSearchParams(defaultLimit, "limit");
   const [query, setQuery] = useStateSearchParams("*", "query");
-  const [tmpQuery, setTmpQuery] = useState("");
+  const [isUpdatingQuery, setIsUpdatingQuery] = useState(false);
   const [period, setPeriod] = useState<TimeParams>(periodState);
   const [queryError, setQueryError] = useState<ErrorTypes | string>("");
 
@@ -49,7 +52,7 @@ const ExploreLogs: FC = () => {
     const newPeriod = getPeriod();
     setPeriod(newPeriod);
     fetchLogs(newPeriod).then((isSuccess) => {
-      isSuccess && fetchLogHits(newPeriod);
+      isSuccess && !hideChart && fetchLogHits(newPeriod);
     }).catch(e => e);
     setSearchParamsFromKeys( {
       query,
@@ -67,34 +70,40 @@ const ExploreLogs: FC = () => {
 
   const handleApplyFilter = (val: string) => {
     setQuery(prev => `_stream: ${val === "other" ? "{}" : val} AND (${prev})`);
+    setIsUpdatingQuery(true);
   };
 
-  const handleUpdateQuery = useCallback(() => {
+  const handleUpdateQuery = () => {
     if (isLoading || dataLogHits.isLoading) {
       abortController.abort && abortController.abort();
       dataLogHits.abortController.abort && dataLogHits.abortController.abort();
     } else {
-      setQuery(tmpQuery);
       handleRunQuery();
     }
-  }, [isLoading, dataLogHits.isLoading]);
+  };
 
   useEffect(() => {
-    if (query) handleRunQuery();
+    if (!query) return;
+    handleRunQuery();
   }, [periodState]);
 
   useEffect(() => {
+    if (!isUpdatingQuery) return;
     handleRunQuery();
-    setTmpQuery(query);
-  }, [query]);
+    setIsUpdatingQuery(false);
+  }, [query, isUpdatingQuery]);
+
+  useEffect(() => {
+    !hideChart && fetchLogHits(period);
+  }, [hideChart]);
 
   return (
     <div className="vm-explore-logs">
       <ExploreLogsHeader
-        query={tmpQuery}
+        query={query}
         error={queryError}
         limit={limit}
-        onChange={setTmpQuery}
+        onChange={setQuery}
         onChangeLimit={handleChangeLimit}
         onRun={handleUpdateQuery}
         isLoading={isLoading || dataLogHits.isLoading}

app/vmui/packages/vmui/src/pages/ExploreLogs/ExploreLogsBarChart/ExploreLogsBarChart.tsx

@@ -1,4 +1,4 @@
-import React, { FC, useMemo } from "preact/compat";
+import React, { FC, useCallback, useMemo } from "preact/compat";
 import "./style.scss";
 import useDeviceDetect from "../../../hooks/useDeviceDetect";
 import classNames from "classnames";
@@ -10,6 +10,8 @@ import BarHitsChart from "../../../components/Chart/BarHitsChart/BarHitsChart";
 import Alert from "../../../components/Main/Alert/Alert";
 import { TimeParams } from "../../../types";
 import LineLoader from "../../../components/Main/LineLoader/LineLoader";
+import { useSearchParams } from "react-router-dom";
+import { getHitsTimeParams } from "../../../utils/logs";
 
 interface Props {
   query: string;
@@ -23,27 +25,46 @@ interface Props {
 const ExploreLogsBarChart: FC<Props> = ({ logHits, period, error, isLoading, onApplyFilter }) => {
   const { isMobile } = useDeviceDetect();
   const timeDispatch = useTimeDispatch();
+  const [searchParams] = useSearchParams();
+  const hideChart = useMemo(() => searchParams.get("hide_chart"), [searchParams]);
 
-  const getXAxis = (timestamps: string[]): number[] => {
-    return (timestamps.map(t => t ? dayjs(t).unix() : null)
-      .filter(Boolean) as number[])
-      .sort((a, b) => a - b);
-  };
-
-  const getYAxes = (logHits: LogHits[], timestamps: string[]) => {
+  const getYAxes = (logHits: LogHits[], timestamps: number[]) => {
     return logHits.map(hits => {
-      return timestamps.map(t => {
-        const index = hits.timestamps.findIndex(ts => ts === t);
-        return index === -1 ? null : hits.values[index] || null;
+      const timestampValueMap = new Map();
+      hits.timestamps.forEach((ts, idx) => {
+        const unixTime = dayjs(ts).unix();
+        timestampValueMap.set(unixTime, hits.values[idx] || null);
       });
+
+      return timestamps.map(t => timestampValueMap.get(t) || null);
     });
   };
 
+  const generateTimestamps = useCallback((date: dayjs.Dayjs) => {
+    const result: number[] = [];
+    const { start, end, step } = getHitsTimeParams(period);
+    const stepsToFirstTimestamp = Math.ceil(start.diff(date, "milliseconds") / step);
+    let firstTimestamp = date.add(stepsToFirstTimestamp * step, "milliseconds");
+
+    // If the first timestamp is before 'start', set it to 'start'
+    if (firstTimestamp.isBefore(start)) {
+      firstTimestamp = start.clone();
+    }
+
+    // Calculate the total number of steps from 'firstTimestamp' to 'end'
+    const totalSteps = Math.floor(end.diff(firstTimestamp, "milliseconds") / step);
+
+    for (let i = 0; i <= totalSteps; i++) {
+      result.push(firstTimestamp.add(i * step, "milliseconds").unix());
+    }
+
+    return result;
+  }, [period]);
+
   const data = useMemo(() => {
     if (!logHits.length) return [[], []] as AlignedData;
-    const timestamps = Array.from(new Set(logHits.map(l => l.timestamps).flat()));
-    const xAxis = getXAxis(timestamps);
-    const yAxes = getYAxes(logHits, timestamps);
+    const xAxis = generateTimestamps(dayjs(logHits[0].timestamps[0]));
+    const yAxes = getYAxes(logHits, xAxis);
     return [xAxis, ...yAxes] as AlignedData;
   }, [logHits]);
 
@@ -51,14 +72,16 @@ const ExploreLogsBarChart: FC<Props> = ({ logHits, period, error, isLoading, onA
     const noData = data.every(d => d.length === 0);
     const noTimestamps = data[0].length === 0;
     const noValues = data[1].length === 0;
-    if (noData) {
+    if (hideChart) {
+      return "Chart hidden. Hits updates paused.";
+    } else if (noData) {
       return "No logs volume available\nNo volume information available for the current queries and time range.";
     } else if (noTimestamps) {
       return "No timestamp information available for the current queries and time range.";
     } else if (noValues) {
       return "No value information available for the current queries and time range.";
     } return "";
-  }, [data]);
+  }, [data, hideChart]);
 
   const setPeriod = ({ from, to }: {from: Date, to: Date}) => {
     timeDispatch({ type: "SET_PERIOD", payload: { from, to } });

app/vmui/packages/vmui/src/pages/ExploreLogs/ExploreLogsBarChart/style.scss

@@ -13,8 +13,12 @@
   }
 
   &__empty {
+    display: flex;
+    align-items: center;
+    justify-content: center;
     position: absolute;
-    transform: translateY(-25px);
+    top: 0;
+    bottom: 0;
     z-index: 2;
   }
 }

app/vmui/packages/vmui/src/pages/ExploreLogs/GroupLogs/style.scss

@@ -7,7 +7,6 @@
     display: flex;
     align-items: center;
     justify-content: flex-end;
-    gap: $padding-global;
 
     &-keys {
       max-height: 300px;

app/vmui/packages/vmui/src/pages/ExploreLogs/hooks/useFetchLogHits.ts

@@ -2,9 +2,8 @@ import { useCallback, useMemo, useRef, useState } from "preact/compat";
 import { getLogHitsUrl } from "../../../api/logs";
 import { ErrorTypes, TimeParams } from "../../../types";
 import { LogHits } from "../../../api/types";
-import dayjs from "dayjs";
-import { LOGS_BARS_VIEW } from "../../../constants/logs";
 import { useSearchParams } from "react-router-dom";
+import { getHitsTimeParams } from "../../../utils/logs";
 
 export const useFetchLogHits = (server: string, query: string) => {
   const [searchParams] = useSearchParams();
@@ -17,10 +16,7 @@ export const useFetchLogHits = (server: string, query: string) => {
   const url = useMemo(() => getLogHitsUrl(server), [server]);
 
   const getOptions = (query: string, period: TimeParams, signal: AbortSignal) => {
-    const start = dayjs(period.start * 1000);
-    const end = dayjs(period.end * 1000);
-    const totalSeconds = end.diff(start, "milliseconds");
-    const step = Math.ceil(totalSeconds / LOGS_BARS_VIEW) || 1;
+    const { start, end, step } = getHitsTimeParams(period);
 
     return {
       signal,

app/vmui/packages/vmui/src/router/navigation.ts

@@ -1,4 +1,5 @@
 import router, { routerOptions } from "./index";
+import { getTenantIdFromUrl } from "../utils/tenants";
 
 export enum NavigationItemType {
   internalLink,
@@ -24,10 +25,12 @@ interface NavigationConfig {
  * Special case for alert link
  */
 const getAlertLink = (url: string, showAlertLink: boolean) => {
-  // see more https://docs.victoriametrics.com/cluster-victoriametrics/?highlight=vmalertproxyurl#vmalert
+  // see more https://docs.victoriametrics.com/cluster-victoriametrics/#vmalert
+  const isCluster = !!getTenantIdFromUrl(url);
+  const value = isCluster ? `${url}/vmalert` : url.replace(/\/prometheus$/, "/vmalert");
   return {
     label: "Alerts",
-    value: `${url}/vmalert`,
+    value,
     type: NavigationItemType.externalLink,
     hide: !showAlertLink,
   };

app/vmui/packages/vmui/src/utils/logs.ts

@@ -1,4 +1,16 @@
+import { TimeParams } from "../types";
+import dayjs from "dayjs";
+import { LOGS_BARS_VIEW } from "../constants/logs";
+
 export const getStreamPairs = (value: string): string[] => {
   const pairs = /^{.+}$/.test(value) ? value.slice(1, -1).split(",") : [value];
   return pairs.filter(Boolean);
 };
+
+export const getHitsTimeParams = (period: TimeParams) => {
+  const start = dayjs(period.start * 1000);
+  const end = dayjs(period.end * 1000);
+  const totalSeconds = end.diff(start, "milliseconds");
+  const step = Math.ceil(totalSeconds / LOGS_BARS_VIEW) || 1;
+  return { start, end, step };
+};

apptest/README.md

@@ -0,0 +1,40 @@
+# App Integration Tests
+
+The `apptest` package contains the integration tests for the VictoriaMetrics
+applications (such as vmstorage, vminsert, and vmselect).
+
+An integration test aims at verifying the behavior of an application as a whole,
+as apposed to a unit test that verifies the behavior of a building block of an
+application.
+
+To achieve that an integration test starts an application in a separate process
+and then issues HTTP requets to it and verifies the responses, examines the
+metrics the app exposes and/or files it creates, etc.
+
+Note that an object of testing may be not just a single app, but several apps
+working together. A good example is VictoriaMetrics cluster. An integration test
+may reproduce an arbitrary cluster configuration and verify how the components
+work together as a system.
+
+The package provides a collection of helpers to start applications and make
+queries to them:
+
+-   `app.go` - contains the generic code for staring an application and should
+    not be used by integration tests directly.
+-   `{vmstorage,vminsert,etc}.go` - build on top of `app.go` and provide the
+    code for staring a specific application.
+-   `client.go` - provides helper functions for sending HTTP requests to
+    applications.
+
+The integration tests themselves reside in `*_test.go` files. Apart from having
+the `_test` suffix, there are no strict rules of how to name a file, but the
+name should reflect the prevailing purpose of the tests located in that file.
+For example, `sharding_test.go` aims at testing data sharding.
+
+Since integration tests start applications in a separate process, they require
+the application binary files to be built and put into the `bin` directory. The
+build rule used for running integration tests, `make integration-test`,
+accounts for that, it builds all application binaries before running the tests.
+But if you want to run the tests without `make`, i.e. by executing
+`go test ./app/apptest`, you will need to build the binaries first (for example,
+by executing `make all`).

apptest/app.go

@@ -0,0 +1,249 @@
+package apptest
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"os/exec"
+	"reflect"
+	"regexp"
+	"strings"
+	"time"
+)
+
+// Regular expressions for runtime information to extract from the app logs.
+var (
+	storageDataPathRE = regexp.MustCompile(`successfully opened storage "(.*)"`)
+	httpListenAddrRE  = regexp.MustCompile(`started server at http://(.*:\d{1,5})/`)
+	vminsertAddrRE    = regexp.MustCompile(`accepting vminsert conns at (.*:\d{1,5})$`)
+	vmselectAddrRE    = regexp.MustCompile(`accepting vmselect conns at (.*:\d{1,5})$`)
+)
+
+// app represents an instance of some VictoriaMetrics server (such as vmstorage,
+// vminsert, or vmselect).
+type app struct {
+	instance string
+	binary   string
+	flags    []string
+	process  *os.Process
+}
+
+// appOptions holds the optional configuration of an app, such as default flags
+// to set and things to extract from the app's log.
+type appOptions struct {
+	defaultFlags map[string]string
+	extractREs   []*regexp.Regexp
+}
+
+// startApp starts an instance of an app using the app binary file path and
+// flags. When the opts are set, it also sets the default flag values and
+// extracts runtime information from the app's log.
+//
+// If the app has started successfully and all the requested items has been
+// extracted from logs, the function returns the instance of the app and the
+// extracted items. The extracted items are returned in the same order as the
+// corresponding extract regular expression have been provided in the opts.
+//
+// The function returns an error if the application has failed to start or the
+// function has timed out extracting items from the log (normally because no log
+// records match the regular expression).
+func startApp(instance string, binary string, flags []string, opts *appOptions) (*app, []string, error) {
+	flags = setDefaultFlags(flags, opts.defaultFlags)
+
+	cmd := exec.Command(binary, flags...)
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return nil, nil, err
+	}
+	stderr, err := cmd.StderrPipe()
+	if err != nil {
+		return nil, nil, err
+	}
+	if err := cmd.Start(); err != nil {
+		return nil, nil, err
+	}
+
+	app := &app{
+		instance: instance,
+		binary:   binary,
+		flags:    flags,
+		process:  cmd.Process,
+	}
+
+	go app.processOutput("stdout", stdout, app.writeToStderr)
+
+	lineProcessors := make([]lineProcessor, len(opts.extractREs))
+	reExtractors := make([]*reExtractor, len(opts.extractREs))
+	timeout := time.NewTimer(5 * time.Second).C
+	for i, re := range opts.extractREs {
+		reExtractors[i] = newREExtractor(re, timeout)
+		lineProcessors[i] = reExtractors[i].extractRE
+	}
+	go app.processOutput("stderr", stderr, append(lineProcessors, app.writeToStderr)...)
+
+	extracts, err := extractREs(reExtractors, timeout)
+	if err != nil {
+		app.Stop()
+		return nil, nil, err
+	}
+
+	return app, extracts, nil
+}
+
+// setDefaultFlags adds flags with default values to `flags` if it does not
+// initially contain them.
+func setDefaultFlags(flags []string, defaultFlags map[string]string) []string {
+	for _, flag := range flags {
+		for name := range defaultFlags {
+			if strings.HasPrefix(flag, name) {
+				delete(defaultFlags, name)
+				continue
+			}
+		}
+	}
+	for name, value := range defaultFlags {
+		flags = append(flags, name+"="+value)
+	}
+	return flags
+}
+
+// stop sends the app process a SIGINT signal and waits until it terminates
+// gracefully.
+func (app *app) Stop() {
+	if err := app.process.Signal(os.Interrupt); err != nil {
+		log.Fatalf("Could not send SIGINT signal to %s process: %v", app.instance, err)
+	}
+	if _, err := app.process.Wait(); err != nil {
+		log.Fatalf("Could not wait for %s process completion: %v", app.instance, err)
+	}
+}
+
+// String returns the string representation of the app state.
+func (app *app) String() string {
+	return fmt.Sprintf("{instance: %q binary: %q flags: %q}", app.instance, app.binary, app.flags)
+}
+
+// lineProcessor is a function that is applied to the each line of the app
+// output (stdout or stderr). The function returns true to indicate the caller
+// that it has completed its work and should not be called again.
+type lineProcessor func(line string) (done bool)
+
+// processOutput invokes a set of processors on each line of app output (stdout
+// or stderr). Once a line processor is done (returns true) it is never invoked
+// again.
+//
+// A simple use case for this is to pipe the output of the child process to the
+// output of the parent process. A more sophisticated one is to retrieve some
+// runtime information from the child process logs, such as the server's
+// host:port.
+func (app *app) processOutput(outputName string, output io.Reader, lps ...lineProcessor) {
+	activeLPs := map[int]lineProcessor{}
+	for i, lp := range lps {
+		activeLPs[i] = lp
+	}
+
+	scanner := bufio.NewScanner(output)
+	for scanner.Scan() {
+		line := scanner.Text()
+		for i, process := range activeLPs {
+			if process(line) {
+				delete(activeLPs, i)
+			}
+		}
+	}
+
+	if err := scanner.Err(); err != nil {
+		log.Printf("could not scan %s %s: %v", app.instance, outputName, err)
+	}
+}
+
+// writeToStderr is a line processor that writes the line to the stderr.
+// The function always returns false to indicate its caller that each line must
+// be written to the stderr.
+func (app *app) writeToStderr(line string) bool {
+	fmt.Fprintf(os.Stderr, "%s %s\n", app.instance, line)
+	return false
+}
+
+// extractREs waits until all reExtractors return the result and then returns
+// the combined result with items ordered the same way as reExtractors.
+//
+// The function returns an error if timeout occurs sooner then all reExtractors
+// finish its work.
+func extractREs(reExtractors []*reExtractor, timeout <-chan time.Time) ([]string, error) {
+	n := len(reExtractors)
+	notFoundREs := make(map[int]string)
+	extracts := make([]string, n)
+	cases := make([]reflect.SelectCase, n+1)
+	for i, x := range reExtractors {
+		cases[i] = x.selectCase
+		notFoundREs[i] = x.re.String()
+	}
+	cases[n] = reflect.SelectCase{
+		Dir:  reflect.SelectRecv,
+		Chan: reflect.ValueOf(timeout),
+	}
+
+	for notFound := n; notFound > 0; {
+		i, value, _ := reflect.Select(cases)
+		if i == n {
+			// n-th select case means timeout.
+
+			values := func(m map[int]string) []string {
+				s := []string{}
+				for _, v := range m {
+					s = append(s, v)
+				}
+				return s
+			}
+			return nil, fmt.Errorf("could not extract some or all regexps from stderr: %q", values(notFoundREs))
+		}
+		extracts[i] = value.String()
+		delete(notFoundREs, i)
+		notFound--
+	}
+	return extracts, nil
+}
+
+// reExtractor extracts some information based on a regular expression from the
+// app output within a timeout.
+type reExtractor struct {
+	re         *regexp.Regexp
+	result     chan string
+	timeout    <-chan time.Time
+	selectCase reflect.SelectCase
+}
+
+// newREExtractor create a new reExtractor based on a regexp and a timeout.
+func newREExtractor(re *regexp.Regexp, timeout <-chan time.Time) *reExtractor {
+	result := make(chan string)
+	return &reExtractor{
+		re:      re,
+		result:  result,
+		timeout: timeout,
+		selectCase: reflect.SelectCase{
+			Dir:  reflect.SelectRecv,
+			Chan: reflect.ValueOf(result),
+		},
+	}
+}
+
+// extractRE is a line processor that extracts some information from a line
+// based on a regular expression. The function returns trun (to request the
+// caller to not to be called again) either when the match is found or due to
+// the timeout. The found match is written to the x.result channel and it is
+// important that this channel is monitored by a separate goroutine, otherwise
+// the function will block.
+func (x *reExtractor) extractRE(line string) bool {
+	submatch := x.re.FindSubmatch([]byte(line))
+	if len(submatch) == 2 {
+		select {
+		case x.result <- string(submatch[1]):
+		case <-x.timeout:
+		}
+		return true
+	}
+	return false
+}

apptest/client.go

@@ -0,0 +1,130 @@
+package apptest
+
+import (
+	"io"
+	"net/http"
+	"net/url"
+	"strconv"
+	"strings"
+	"testing"
+)
+
+// Client is used for interacting with the apps over the network.
+//
+// At the moment it only supports HTTP protocol but may be exptended to support
+// RPCs, etc.
+type Client struct {
+	httpCli *http.Client
+}
+
+// NewClient creates a new client.
+func NewClient() *Client {
+	return &Client{
+		httpCli: &http.Client{
+			Transport: &http.Transport{},
+		},
+	}
+}
+
+// CloseConnections closes client connections.
+func (c *Client) CloseConnections() {
+	c.httpCli.CloseIdleConnections()
+}
+
+// Get sends a HTTP GET request. Once the function receives a response, it
+// checks whether the response status code matches the expected one and returns
+// the response body to the caller.
+func (c *Client) Get(t *testing.T, url string, wantStatusCode int) string {
+	t.Helper()
+	return c.do(t, http.MethodGet, url, "", "", wantStatusCode)
+}
+
+// Post sends a HTTP POST request. Once the function receives a response, it
+// checks whether the response status code matches the expected one and returns
+// the response body to the caller.
+func (c *Client) Post(t *testing.T, url, contentType, data string, wantStatusCode int) string {
+	t.Helper()
+	return c.do(t, http.MethodPost, url, contentType, data, wantStatusCode)
+}
+
+// PostForm sends a HTTP POST request containing the POST-form data. Once the
+// function receives a response, it checks whether the response status code
+// matches the expected one and returns the response body to the caller.
+func (c *Client) PostForm(t *testing.T, url string, data url.Values, wantStatusCode int) string {
+	t.Helper()
+	return c.Post(t, url, "application/x-www-form-urlencoded", data.Encode(), wantStatusCode)
+}
+
+// do prepares a HTTP request, sends it to the server, receives the response
+// from the server, ensures then response code matches the expected one, reads
+// the rentire response body and returns it to the caller.
+func (c *Client) do(t *testing.T, method, url, contentType, data string, wantStatusCode int) string {
+	t.Helper()
+
+	req, err := http.NewRequest(method, url, strings.NewReader(data))
+	if err != nil {
+		t.Fatalf("could not create a HTTP request: %v", err)
+	}
+
+	if len(contentType) > 0 {
+		req.Header.Add("Content-Type", contentType)
+	}
+	res, err := c.httpCli.Do(req)
+	if err != nil {
+		t.Fatalf("could not send HTTP request: %v", err)
+	}
+
+	body := readAllAndClose(t, res.Body)
+
+	if got, want := res.StatusCode, wantStatusCode; got != want {
+		t.Fatalf("unexpected response code: got %d, want %d (body: %s)", got, want, body)
+	}
+
+	return body
+}
+
+// readAllAndClose reads everything from the response body and then closes it.
+func readAllAndClose(t *testing.T, responseBody io.ReadCloser) string {
+	t.Helper()
+
+	defer responseBody.Close()
+	b, err := io.ReadAll(responseBody)
+	if err != nil {
+		t.Fatalf("could not read response body: %d", err)
+	}
+	return string(b)
+}
+
+// ServesMetrics is used to retrive the app's metrics.
+//
+// This type is expected to be embdded by the apps that serve metrics.
+type ServesMetrics struct {
+	metricsURL string
+	cli        *Client
+}
+
+// GetIntMetric retrieves the value of a metric served by an app at /metrics URL.
+// The value is then converted to int.
+func (app *ServesMetrics) GetIntMetric(t *testing.T, metricName string) int {
+	return int(app.GetMetric(t, metricName))
+}
+
+// GetMetric retrieves the value of a metric served by an app at /metrics URL.
+func (app *ServesMetrics) GetMetric(t *testing.T, metricName string) float64 {
+	t.Helper()
+
+	metrics := app.cli.Get(t, app.metricsURL, http.StatusOK)
+	for _, metric := range strings.Split(metrics, "\n") {
+		value, found := strings.CutPrefix(metric, metricName)
+		if found {
+			value = strings.Trim(value, " ")
+			res, err := strconv.ParseFloat(value, 64)
+			if err != nil {
+				t.Fatalf("could not parse metric value %s: %v", metric, err)
+			}
+			return res
+		}
+	}
+	t.Fatalf("metic not found: %s", metricName)
+	return 0
+}

apptest/testcase.go

@@ -0,0 +1,42 @@
+package apptest
+
+import (
+	"testing"
+
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
+)
+
+// TestCase holds the state and defines clean-up procedure common for all test
+// cases.
+type TestCase struct {
+	t   *testing.T
+	cli *Client
+}
+
+// NewTestCase creates a new test case.
+func NewTestCase(t *testing.T) *TestCase {
+	return &TestCase{t, NewClient()}
+}
+
+// Dir returns the directory name that should be used by as the -storageDataDir.
+func (tc *TestCase) Dir() string {
+	return tc.t.Name()
+}
+
+// Client returns an instance of the client that can be used for interacting with
+// the app(s) under test.
+func (tc *TestCase) Client() *Client {
+	return tc.cli
+}
+
+// Close performs the test case clean up, such as closing all client connections
+// and removing the -storageDataDir directory.
+//
+// Note that the -storageDataDir is not removed in case of test case failure to
+// allow for furher manual debugging.
+func (tc *TestCase) Close() {
+	tc.cli.CloseConnections()
+	if !tc.t.Failed() {
+		fs.MustRemoveAll(tc.Dir())
+	}
+}

apptest/tests/multilevel_test.go

@@ -0,0 +1,68 @@
+package tests
+
+import (
+	"fmt"
+	"math/rand/v2"
+	"testing"
+	"time"
+
+	"github.com/VictoriaMetrics/VictoriaMetrics/apptest"
+)
+
+func TestMultilevelSelect(t *testing.T) {
+	tc := apptest.NewTestCase(t)
+	defer tc.Close()
+
+	// Set up the following multi-level cluster configuration:
+	//
+	// vmselect (L2) -> vmselect (L1) -> vmstorage <- vminsert
+	//
+	// vmisert writes data into vmstorage.
+	// vmselect (L2) reads that data via vmselect (L1).
+
+	cli := tc.Client()
+
+	vmstorage := apptest.MustStartVmstorage(t, "vmstorage", []string{
+		"-storageDataPath=" + tc.Dir() + "/vmstorage",
+	}, cli)
+	defer vmstorage.Stop()
+	vminsert := apptest.MustStartVminsert(t, "vminsert", []string{
+		"-storageNode=" + vmstorage.VminsertAddr(),
+	}, cli)
+	defer vminsert.Stop()
+	vmselectL1 := apptest.MustStartVmselect(t, "vmselect-level1", []string{
+		"-storageNode=" + vmstorage.VmselectAddr(),
+	}, cli)
+	defer vmselectL1.Stop()
+	vmselectL2 := apptest.MustStartVmselect(t, "vmselect-level2", []string{
+		"-storageNode=" + vmselectL1.ClusternativeListenAddr(),
+	}, cli)
+	defer vmselectL2.Stop()
+
+	// Insert 1000 unique time series.Wait for 2 seconds to let vmstorage
+	// flush pending items so they become searchable.
+
+	const numMetrics = 1000
+	records := make([]string, numMetrics)
+	for i := range numMetrics {
+		records[i] = fmt.Sprintf("metric_%d %d", i, rand.IntN(1000))
+	}
+	vminsert.PrometheusAPIV1ImportPrometheus(t, "0", records)
+	time.Sleep(2 * time.Second)
+
+	// Retrieve all time series and verify that vmselect (L1) serves the complete
+	// set of time series.
+
+	seriesL1 := vmselectL1.PrometheusAPIV1Series(t, "0", `{__name__=~".*"}`)
+	if got, want := len(seriesL1.Data), numMetrics; got != want {
+		t.Fatalf("unexpected level-1 series count: got %d, want %d", got, want)
+	}
+
+	// Retrieve all time series and verify that vmselect (L2) serves the complete
+	// set of time series.
+
+	seriesL2 := vmselectL2.PrometheusAPIV1Series(t, "0", `{__name__=~".*"}`)
+	if got, want := len(seriesL2.Data), numMetrics; got != want {
+		t.Fatalf("unexpected level-2 series count: got %d, want %d", got, want)
+	}
+}

apptest/tests/sharding_test.go

@@ -0,0 +1,84 @@
+package tests
+
+import (
+	"fmt"
+	"math/rand/v2"
+	"testing"
+	"time"
+
+	"github.com/VictoriaMetrics/VictoriaMetrics/apptest"
+)
+
+func TestVminsertShardsDataVmselectBuildsFullResultFromShards(t *testing.T) {
+	tc := apptest.NewTestCase(t)
+	defer tc.Close()
+
+	// Set up the following cluster configuration:
+	//
+	// - two vmstorage instances
+	// - vminsert points to the two vmstorages, its replication setting
+	//   is off which means it will only shard the incoming data across the two
+	//   vmstorages.
+	// - vmselect points to the two vmstorages and is expected to query both
+	//   vmstorages and build the full result out of the two partial results.
+
+	cli := tc.Client()
+
+	vmstorage1 := apptest.MustStartVmstorage(t, "vmstorage-1", []string{
+		"-storageDataPath=" + tc.Dir() + "/vmstorage-1",
+	}, cli)
+	defer vmstorage1.Stop()
+	vmstorage2 := apptest.MustStartVmstorage(t, "vmstorage-2", []string{
+		"-storageDataPath=" + tc.Dir() + "/vmstorage-2",
+	}, cli)
+	defer vmstorage2.Stop()
+	vminsert := apptest.MustStartVminsert(t, "vminsert", []string{
+		"-storageNode=" + vmstorage1.VminsertAddr() + "," + vmstorage2.VminsertAddr(),
+	}, cli)
+	defer vminsert.Stop()
+	vmselect := apptest.MustStartVmselect(t, "vmselect", []string{
+		"-storageNode=" + vmstorage1.VmselectAddr() + "," + vmstorage2.VmselectAddr(),
+	}, cli)
+	defer vmselect.Stop()
+
+	// Insert 1000 unique time series and verify the that inserted data has been
+	// indeed sharded by checking various metrics exposed by vminsert and
+	// vmstorage.
+	// Also wait for 2 seconds to let vminsert and vmstorage servers to update
+	// the values of the metrics they expose and to let vmstorages flush pending
+	// items so they become searchable.
+
+	const numMetrics = 1000
+	records := make([]string, numMetrics)
+	for i := range numMetrics {
+		records[i] = fmt.Sprintf("metric_%d %d", i, rand.IntN(1000))
+	}
+	vminsert.PrometheusAPIV1ImportPrometheus(t, "0", records)
+	time.Sleep(2 * time.Second)
+
+	numMetrics1 := vmstorage1.GetIntMetric(t, "vm_vminsert_metrics_read_total")
+	if numMetrics1 == 0 {
+		t.Fatalf("storage-1 has no time series")
+	}
+	numMetrics2 := vmstorage2.GetIntMetric(t, "vm_vminsert_metrics_read_total")
+	if numMetrics2 == 0 {
+		t.Fatalf("storage-2 has no time series")
+	}
+	if numMetrics1+numMetrics2 != numMetrics {
+		t.Fatalf("unxepected total number of metrics: vmstorage-1 (%d) + vmstorage-2 (%d) != %d", numMetrics1, numMetrics2, numMetrics)
+	}
+
+	// Retrieve all time series and verify that vmselect serves the complete set
+	//of time series.
+
+	series := vmselect.PrometheusAPIV1Series(t, "0", `{__name__=~".*"}`)
+	if got, want := series.Status, "success"; got != want {
+		t.Fatalf("unexpected /ap1/v1/series response status: got %s, want %s", got, want)
+	}
+	if got, want := series.IsPartial, false; got != want {
+		t.Fatalf("unexpected /ap1/v1/series response isPartial value: got %t, want %t", got, want)
+	}
+	if got, want := len(series.Data), numMetrics; got != want {
+		t.Fatalf("unexpected /ap1/v1/series response series count: got %d, want %d", got, want)
+	}
+}

apptest/vminsert.go

@@ -0,0 +1,77 @@
+package apptest
+
+import (
+	"fmt"
+	"net/http"
+	"regexp"
+	"strings"
+	"testing"
+)
+
+// Vminsert holds the state of a vminsert app and provides vminsert-specific
+// functions.
+type Vminsert struct {
+	*app
+	*ServesMetrics
+
+	httpListenAddr string
+	cli            *Client
+}
+
+// MustStartVminsert is a test helper function that starts an instance of
+// vminsert and fails the test if the app fails to start.
+func MustStartVminsert(t *testing.T, instance string, flags []string, cli *Client) *Vminsert {
+	t.Helper()
+
+	app, err := StartVminsert(instance, flags, cli)
+	if err != nil {
+		t.Fatalf("Could not start %s: %v", instance, err)
+	}
+
+	return app
+}
+
+// StartVminsert starts an instance of vminsert with the given flags. It also
+// sets the default flags and populates the app instance state with runtime
+// values extracted from the application log (such as httpListenAddr)
+func StartVminsert(instance string, flags []string, cli *Client) (*Vminsert, error) {
+	app, stderrExtracts, err := startApp(instance, "../../bin/vminsert", flags, &appOptions{
+		defaultFlags: map[string]string{
+			"-httpListenAddr": "127.0.0.1:0",
+		},
+		extractREs: []*regexp.Regexp{
+			httpListenAddrRE,
+		},
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return &Vminsert{
+		app: app,
+		ServesMetrics: &ServesMetrics{
+			metricsURL: fmt.Sprintf("http://%s/metrics", stderrExtracts[0]),
+			cli:        cli,
+		},
+		httpListenAddr: stderrExtracts[0],
+		cli:            cli,
+	}, nil
+}
+
+// PrometheusAPIV1ImportPrometheus is a test helper function that inserts a
+// collection of records in Prometheus text exposition format for the given
+// tenant by sending a HTTP POST request to
+// /prometheus/api/v1/import/prometheus vminsert endpoint.
+//
+// See https://docs.victoriametrics.com/url-examples/#apiv1importprometheus
+func (app *Vminsert) PrometheusAPIV1ImportPrometheus(t *testing.T, tenant string, records []string) {
+	t.Helper()
+
+	url := fmt.Sprintf("http://%s/insert/%s/prometheus/api/v1/import/prometheus", app.httpListenAddr, tenant)
+	app.cli.Post(t, url, "text/plain", strings.Join(records, "\n"), http.StatusNoContent)
+}
+
+// String returns the string representation of the vminsert app state.
+func (app *Vminsert) String() string {
+	return fmt.Sprintf("{app: %s httpListenAddr: %q}", app.app, app.httpListenAddr)
+}

apptest/vmselect.go

@@ -0,0 +1,101 @@
+package apptest
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/url"
+	"regexp"
+	"testing"
+)
+
+// Vmselect holds the state of a vmselect app and provides vmselect-specific
+// functions.
+type Vmselect struct {
+	*app
+	*ServesMetrics
+
+	httpListenAddr          string
+	clusternativeListenAddr string
+	cli                     *Client
+}
+
+// MustStartVmselect is a test helper function that starts an instance of
+// vmselect and fails the test if the app fails to start.
+func MustStartVmselect(t *testing.T, instance string, flags []string, cli *Client) *Vmselect {
+	t.Helper()
+
+	app, err := StartVmselect(instance, flags, cli)
+	if err != nil {
+		t.Fatalf("Could not start %s: %v", instance, err)
+	}
+
+	return app
+}
+
+// StartVmselect starts an instance of vmselect with the given flags. It also
+// sets the default flags and populates the app instance state with runtime
+// values extracted from the application log (such as httpListenAddr)
+func StartVmselect(instance string, flags []string, cli *Client) (*Vmselect, error) {
+	app, stderrExtracts, err := startApp(instance, "../../bin/vmselect", flags, &appOptions{
+		defaultFlags: map[string]string{
+			"-httpListenAddr":          "127.0.0.1:0",
+			"-clusternativeListenAddr": "127.0.0.1:0",
+		},
+		extractREs: []*regexp.Regexp{
+			httpListenAddrRE,
+			vmselectAddrRE,
+		},
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return &Vmselect{
+		app: app,
+		ServesMetrics: &ServesMetrics{
+			metricsURL: fmt.Sprintf("http://%s/metrics", stderrExtracts[0]),
+			cli:        cli,
+		},
+		httpListenAddr:          stderrExtracts[0],
+		clusternativeListenAddr: stderrExtracts[1],
+		cli:                     cli,
+	}, nil
+}
+
+// ClusternativeListenAddr returns the address at which the vmselect process is
+// listening for connections from other vmselect apps.
+func (app *Vmselect) ClusternativeListenAddr() string {
+	return app.clusternativeListenAddr
+}
+
+// PrometheusAPIV1SeriesResponse is an inmemory representation of the
+// /prometheus/api/v1/series response.
+type PrometheusAPIV1SeriesResponse struct {
+	Status    string
+	IsPartial bool
+	Data      []map[string]string
+}
+
+// PrometheusAPIV1Series sends a query to a /prometheus/api/v1/series endpoint
+// and returns the list of time series that match the query.
+//
+// See https://docs.victoriametrics.com/url-examples/#apiv1series
+func (app *Vmselect) PrometheusAPIV1Series(t *testing.T, tenant, matchQuery string) *PrometheusAPIV1SeriesResponse {
+	t.Helper()
+
+	seriesURL := fmt.Sprintf("http://%s/select/%s/prometheus/api/v1/series", app.httpListenAddr, tenant)
+	values := url.Values{}
+	values.Add("match[]", matchQuery)
+	jsonRes := app.cli.PostForm(t, seriesURL, values, http.StatusOK)
+	var res PrometheusAPIV1SeriesResponse
+	if err := json.Unmarshal([]byte(jsonRes), &res); err != nil {
+		t.Fatalf("could not unmarshal /api/v1/series response: %v", err)
+	}
+	return &res
+}
+
+// String returns the string representation of the vmselect app state.
+func (app *Vmselect) String() string {
+	return fmt.Sprintf("{app: %s httpListenAddr: %q}", app.app, app.httpListenAddr)
+}

apptest/vmstorage.go

@@ -0,0 +1,87 @@
+package apptest
+
+import (
+	"fmt"
+	"os"
+	"regexp"
+	"testing"
+	"time"
+)
+
+// Vmstorage holds the state of a vmstorage app and provides vmstorage-specific
+// functions.
+type Vmstorage struct {
+	*app
+	*ServesMetrics
+
+	storageDataPath string
+	httpListenAddr  string
+	vminsertAddr    string
+	vmselectAddr    string
+}
+
+// MustStartVmstorage is a test helper function that starts an instance of
+// vmstorage and fails the test if the app fails to start.
+func MustStartVmstorage(t *testing.T, instance string, flags []string, cli *Client) *Vmstorage {
+	t.Helper()
+
+	app, err := StartVmstorage(instance, flags, cli)
+	if err != nil {
+		t.Fatalf("Could not start %s: %v", instance, err)
+	}
+
+	return app
+}
+
+// StartVmstorage starts an instance of vmstorage with the given flags. It also
+// sets the default flags and populates the app instance state with runtime
+// values extracted from the application log (such as httpListenAddr)
+func StartVmstorage(instance string, flags []string, cli *Client) (*Vmstorage, error) {
+	app, stderrExtracts, err := startApp(instance, "../../bin/vmstorage", flags, &appOptions{
+		defaultFlags: map[string]string{
+			"-storageDataPath": fmt.Sprintf("%s/%s-%d", os.TempDir(), instance, time.Now().UnixNano()),
+			"-httpListenAddr":  "127.0.0.1:0",
+			"-vminsertAddr":    "127.0.0.1:0",
+			"-vmselectAddr":    "127.0.0.1:0",
+		},
+		extractREs: []*regexp.Regexp{
+			storageDataPathRE,
+			httpListenAddrRE,
+			vminsertAddrRE,
+			vmselectAddrRE,
+		},
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return &Vmstorage{
+		app: app,
+		ServesMetrics: &ServesMetrics{
+			metricsURL: fmt.Sprintf("http://%s/metrics", stderrExtracts[1]),
+			cli:        cli,
+		},
+		storageDataPath: stderrExtracts[0],
+		httpListenAddr:  stderrExtracts[1],
+		vminsertAddr:    stderrExtracts[2],
+		vmselectAddr:    stderrExtracts[3],
+	}, nil
+}
+
+// VminsertAddr returns the address at which the vmstorage process is listening
+// for vminsert connections.
+func (app *Vmstorage) VminsertAddr() string {
+	return app.vminsertAddr
+}
+
+// VmselectAddr returns the address at which the vmstorage process is listening
+// for vmselect connections.
+func (app *Vmstorage) VmselectAddr() string {
+	return app.vmselectAddr
+}
+
+// String returns the string representation of the vmstorage app state.
+func (app *Vmstorage) String() string {
+	return fmt.Sprintf("{app: %s storageDataPath: %q httpListenAddr: %q vminsertAddr: %q vmselectAddr: %q}", []any{
+		app.app, app.storageDataPath, app.httpListenAddr, app.vminsertAddr, app.vmselectAddr}...)
+}

dashboards/victorialogs.json

@@ -1108,13 +1108,118 @@
       "title": "Log stream churn rate",
       "type": "timeseries"
     },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "$ds"
+      },
+      "description": "Shows the number of restarts per job. The chart can be useful to identify periodic process restarts and correlate them with potential issues or anomalies. Normally, processes shouldn't restart unless restart was inited by user. The reason of restarts should be figured out by checking the logs of each specific service. ",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisBorderShow": false,
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "axisSoftMin": 0,
+            "barAlignment": 0,
+            "drawStyle": "line",
+            "fillOpacity": 0,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "stepAfter",
+            "lineWidth": 1,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "never",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "decimals": 0,
+          "links": [],
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          },
+          "unit": "none"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 22
+      },
+      "id": 62,
+      "options": {
+        "legend": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "displayMode": "table",
+          "placement": "bottom",
+          "showLegend": true,
+          "sortBy": "Last *",
+          "sortDesc": true
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      },
+      "pluginVersion": "9.1.0",
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "$ds"
+          },
+          "editorMode": "code",
+          "expr": "sum(changes(vm_app_start_timestamp{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval]) > 0) by(job)",
+          "format": "time_series",
+          "instant": false,
+          "legendFormat": "{{job}}",
+          "refId": "A"
+        }
+      ],
+      "title": "Restarts ($job)",
+      "type": "timeseries"
+    },
     {
       "collapsed": true,
       "gridPos": {
         "h": 1,
         "w": 24,
         "x": 0,
-        "y": 22
+        "y": 30
       },
       "id": 28,
       "panels": [
@@ -1168,8 +1273,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -1185,7 +1289,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 3
+            "y": 11
           },
           "id": 38,
           "options": {
@@ -1275,8 +1379,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -1292,7 +1395,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 3
+            "y": 11
           },
           "id": 40,
           "options": {
@@ -1432,8 +1535,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -1449,7 +1551,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 11
+            "y": 19
           },
           "id": 42,
           "options": {
@@ -1538,8 +1640,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -1555,7 +1656,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 11
+            "y": 19
           },
           "id": 44,
           "options": {
@@ -1648,8 +1749,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -1681,7 +1781,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 19
+            "y": 27
           },
           "id": 46,
           "options": {
@@ -1773,8 +1873,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -1806,7 +1905,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 19
+            "y": 27
           },
           "id": 48,
           "options": {
@@ -1911,8 +2010,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -1928,7 +2026,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 27
+            "y": 35
           },
           "id": 50,
           "options": {
@@ -2017,8 +2115,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2047,7 +2144,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 27
+            "y": 35
           },
           "id": 52,
           "options": {
@@ -2150,8 +2247,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2167,7 +2263,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 35
+            "y": 43
           },
           "id": 54,
           "options": {
@@ -2256,8 +2352,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2286,7 +2381,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 35
+            "y": 43
           },
           "id": 56,
           "options": {
@@ -2393,8 +2488,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2410,7 +2504,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 43
+            "y": 51
           },
           "id": 58,
           "options": {
@@ -2501,8 +2595,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2518,7 +2611,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 43
+            "y": 51
           },
           "id": 60,
           "options": {
@@ -2610,8 +2703,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2627,7 +2719,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 51
+            "y": 59
           },
           "id": 61,
           "options": {

dashboards/victoriametrics-cluster.json

@@ -4124,6 +4124,111 @@
           ],
           "title": "Rows ignored for last 1h ($instance)",
           "type": "timeseries"
+        },
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "$ds"
+          },
+          "description": "Shows the number of restarts per job. The chart can be useful to identify periodic process restarts and correlate them with potential issues or anomalies. Normally, processes shouldn't restart unless restart was inited by user. The reason of restarts should be figured out by checking the logs of each specific service. ",
+          "fieldConfig": {
+            "defaults": {
+              "color": {
+                "mode": "palette-classic"
+              },
+              "custom": {
+                "axisBorderShow": false,
+                "axisCenteredZero": false,
+                "axisColorMode": "text",
+                "axisLabel": "",
+                "axisPlacement": "auto",
+                "axisSoftMin": 0,
+                "barAlignment": 0,
+                "drawStyle": "line",
+                "fillOpacity": 0,
+                "gradientMode": "none",
+                "hideFrom": {
+                  "legend": false,
+                  "tooltip": false,
+                  "viz": false
+                },
+                "insertNulls": false,
+                "lineInterpolation": "stepAfter",
+                "lineWidth": 1,
+                "pointSize": 5,
+                "scaleDistribution": {
+                  "type": "linear"
+                },
+                "showPoints": "never",
+                "spanNulls": false,
+                "stacking": {
+                  "group": "A",
+                  "mode": "none"
+                },
+                "thresholdsStyle": {
+                  "mode": "off"
+                }
+              },
+              "decimals": 0,
+              "links": [],
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  {
+                    "color": "green",
+                    "value": null
+                  },
+                  {
+                    "color": "red",
+                    "value": 80
+                  }
+                ]
+              },
+              "unit": "none"
+            },
+            "overrides": []
+          },
+          "gridPos": {
+            "h": 8,
+            "w": 12,
+            "x": 12,
+            "y": 70
+          },
+          "id": 214,
+          "options": {
+            "legend": {
+              "calcs": [
+                "lastNotNull"
+              ],
+              "displayMode": "table",
+              "placement": "bottom",
+              "showLegend": true,
+              "sortBy": "Last *",
+              "sortDesc": true
+            },
+            "tooltip": {
+              "mode": "multi",
+              "sort": "desc"
+            }
+          },
+          "pluginVersion": "9.1.0",
+          "targets": [
+            {
+              "datasource": {
+                "type": "prometheus",
+                "uid": "$ds"
+              },
+              "editorMode": "code",
+              "expr": "sum(changes(vm_app_start_timestamp{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval]) > 0) by(job)",
+              "format": "time_series",
+              "instant": false,
+              "legendFormat": "{{job}}",
+              "refId": "A"
+            }
+          ],
+          "title": "Restarts ($job)",
+          "type": "timeseries"
         }
       ],
       "title": "Troubleshooting",
@@ -5037,7 +5142,7 @@
                 "uid": "$ds"
               },
               "editorMode": "code",
-              "expr": "min(vm_free_disk_space_bytes{job=~\"$job_storage\", instance=~\"$instance\"} \n/ \nignoring(path) (\n    rate(vm_rows_added_to_storage_total{job=~\"$job_storage\", instance=~\"$instance\"}[1d])\n    * scalar(\n            sum(vm_data_size_bytes{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            / \n            sum(vm_rows{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            )\n))",
+              "expr": "min((vm_free_disk_space_bytes{job=~\"$job_storage\", instance=~\"$instance\"} - vm_free_disk_space_limit_bytes{job=~\"$job_storage\", instance=~\"$instance\"}) \n/ \nignoring(path) (\n    rate(vm_rows_added_to_storage_total{job=~\"$job_storage\", instance=~\"$instance\"}[1d])\n    * scalar(\n            sum(vm_data_size_bytes{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            / \n            sum(vm_rows{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            )\n))",
               "format": "time_series",
               "interval": "",
               "intervalFactor": 1,
@@ -5927,7 +6032,7 @@
                 "uid": "$ds"
               },
               "editorMode": "code",
-              "expr": "max(\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n    (\n        sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n        sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n    ) \n)",
+              "expr": "max(\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n    (\n        sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}-vm_free_disk_space_limit_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n        sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n    ) \n)",
               "format": "time_series",
               "intervalFactor": 1,
               "legendFormat": "max",
@@ -5940,7 +6045,7 @@
                 "uid": "$ds"
               },
               "editorMode": "code",
-              "expr": "min(\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n    (\n        sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n        sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n    ) \n)",
+              "expr": "min(\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n    (\n        sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}-vm_free_disk_space_limit_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n        sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n    ) \n)",
               "format": "time_series",
               "hide": false,
               "intervalFactor": 1,
@@ -5954,7 +6059,7 @@
                 "uid": "$ds"
               },
               "editorMode": "code",
-              "expr": "quantile(0.5,\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n    (\n        sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n        sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n    ) \n)",
+              "expr": "quantile(0.5,\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n    (\n        sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}-vm_free_disk_space_limit_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n        sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n    ) \n)",
               "format": "time_series",
               "hide": false,
               "intervalFactor": 1,
@@ -9373,7 +9478,7 @@
                 "uid": "$ds"
               },
               "editorMode": "code",
-              "expr": "vm_free_disk_space_bytes{job=~\"$job_storage\", instance=~\"$instance\"} \n/ \nignoring(path) (\n    rate(vm_rows_added_to_storage_total{job=~\"$job_storage\", instance=~\"$instance\"}[1d])\n    * scalar(\n            sum(vm_data_size_bytes{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            / \n            sum(vm_rows{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            )\n)",
+              "expr": "(vm_free_disk_space_bytes{job=~\"$job_storage\", instance=~\"$instance\"}-vm_free_disk_space_limit_bytes{job=~\"$job_storage\", instance=~\"$instance\"}) \n/ \nignoring(path) (\n    rate(vm_rows_added_to_storage_total{job=~\"$job_storage\", instance=~\"$instance\"}[1d])\n    * scalar(\n            sum(vm_data_size_bytes{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            / \n            sum(vm_rows{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            )\n)",
               "format": "time_series",
               "interval": "",
               "intervalFactor": 1,

dashboards/victoriametrics.json

@@ -1569,7 +1569,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 3
+            "y": 11
           },
           "id": 112,
           "links": [],
@@ -1677,7 +1677,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 3
+            "y": 11
           },
           "id": 44,
           "options": {
@@ -1844,7 +1844,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 11
+            "y": 19
           },
           "id": 123,
           "links": [],
@@ -1951,7 +1951,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 11
+            "y": 19
           },
           "id": 114,
           "options": {
@@ -2044,8 +2044,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2077,7 +2076,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 19
+            "y": 27
           },
           "id": 75,
           "options": {
@@ -2169,8 +2168,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2202,7 +2200,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 19
+            "y": 27
           },
           "id": 57,
           "options": {
@@ -2309,8 +2307,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2326,7 +2323,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 27
+            "y": 35
           },
           "id": 47,
           "options": {
@@ -2415,8 +2412,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2445,7 +2441,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 27
+            "y": 35
           },
           "id": 76,
           "options": {
@@ -2552,8 +2548,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2569,7 +2564,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 35
+            "y": 43
           },
           "id": 48,
           "options": {
@@ -2658,8 +2653,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2688,7 +2682,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 35
+            "y": 43
           },
           "id": 124,
           "options": {
@@ -2795,8 +2789,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2812,7 +2805,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 43
+            "y": 51
           },
           "id": 49,
           "options": {
@@ -2903,8 +2896,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2920,7 +2912,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 43
+            "y": 51
           },
           "id": 37,
           "options": {
@@ -3010,8 +3002,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -3040,7 +3031,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 51
+            "y": 59
           },
           "id": 127,
           "options": {
@@ -3146,8 +3137,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -3163,7 +3153,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 51
+            "y": 59
           },
           "id": 125,
           "options": {
@@ -3253,8 +3243,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -3270,7 +3259,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 59
+            "y": 67
           },
           "id": 128,
           "options": {
@@ -3386,7 +3375,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3394,8 +3384,7 @@
                   }
                 ]
               },
-              "unit": "short",
-              "unitScale": true
+              "unit": "short"
             },
             "overrides": []
           },
@@ -3403,7 +3392,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 4
+            "y": 32
           },
           "id": 66,
           "options": {
@@ -3505,7 +3494,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "transparent"
+                    "color": "transparent",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3513,8 +3503,7 @@
                   }
                 ]
               },
-              "unit": "percentunit",
-              "unitScale": true
+              "unit": "percentunit"
             },
             "overrides": []
           },
@@ -3522,10 +3511,9 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 4
+            "y": 32
           },
           "id": 68,
-          "links": [],
           "options": {
             "legend": {
               "calcs": [
@@ -3615,7 +3603,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3623,8 +3612,7 @@
                   }
                 ]
               },
-              "unit": "short",
-              "unitScale": true
+              "unit": "short"
             },
             "overrides": []
           },
@@ -3632,10 +3620,9 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 12
+            "y": 40
           },
           "id": 116,
-          "links": [],
           "options": {
             "legend": {
               "calcs": [
@@ -3723,7 +3710,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3731,8 +3719,7 @@
                   }
                 ]
               },
-              "unit": "short",
-              "unitScale": true
+              "unit": "short"
             },
             "overrides": []
           },
@@ -3740,10 +3727,9 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 12
+            "y": 40
           },
           "id": 60,
-          "links": [],
           "options": {
             "legend": {
               "calcs": [
@@ -3830,7 +3816,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3838,8 +3825,7 @@
                   }
                 ]
               },
-              "unit": "percentunit",
-              "unitScale": true
+              "unit": "percentunit"
             },
             "overrides": []
           },
@@ -3847,7 +3833,7 @@
             "h": 9,
             "w": 12,
             "x": 0,
-            "y": 20
+            "y": 48
           },
           "id": 90,
           "options": {
@@ -3938,7 +3924,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3946,8 +3933,7 @@
                   }
                 ]
               },
-              "unit": "percentunit",
-              "unitScale": true
+              "unit": "percentunit"
             },
             "overrides": []
           },
@@ -3955,10 +3941,9 @@
             "h": 9,
             "w": 12,
             "x": 12,
-            "y": 20
+            "y": 48
           },
           "id": 118,
-          "links": [],
           "options": {
             "legend": {
               "calcs": [
@@ -4022,15 +4007,15 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
                     "value": 80
                   }
                 ]
-              },
-              "unitScale": true
+              }
             },
             "overrides": [
               {
@@ -4075,7 +4060,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 29
+            "y": 57
           },
           "id": 126,
           "options": {
@@ -4090,7 +4075,7 @@
             },
             "showHeader": true
           },
-          "pluginVersion": "10.3.1",
+          "pluginVersion": "10.4.2",
           "targets": [
             {
               "datasource": {
@@ -4161,7 +4146,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -4169,8 +4155,7 @@
                   }
                 ]
               },
-              "unit": "short",
-              "unitScale": true
+              "unit": "short"
             },
             "overrides": []
           },
@@ -4178,10 +4163,9 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 29
+            "y": 57
           },
           "id": 74,
-          "links": [],
           "options": {
             "legend": {
               "calcs": [
@@ -4218,6 +4202,111 @@
           ],
           "title": "Labels limit exceeded",
           "type": "timeseries"
+        },
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "$ds"
+          },
+          "description": "Shows the number of restarts per job. The chart can be useful to identify periodic process restarts and correlate them with potential issues or anomalies. Normally, processes shouldn't restart unless restart was inited by user. The reason of restarts should be figured out by checking the logs of each specific service. ",
+          "fieldConfig": {
+            "defaults": {
+              "color": {
+                "mode": "palette-classic"
+              },
+              "custom": {
+                "axisBorderShow": false,
+                "axisCenteredZero": false,
+                "axisColorMode": "text",
+                "axisLabel": "",
+                "axisPlacement": "auto",
+                "axisSoftMin": 0,
+                "barAlignment": 0,
+                "drawStyle": "line",
+                "fillOpacity": 0,
+                "gradientMode": "none",
+                "hideFrom": {
+                  "legend": false,
+                  "tooltip": false,
+                  "viz": false
+                },
+                "insertNulls": false,
+                "lineInterpolation": "stepAfter",
+                "lineWidth": 1,
+                "pointSize": 5,
+                "scaleDistribution": {
+                  "type": "linear"
+                },
+                "showPoints": "never",
+                "spanNulls": false,
+                "stacking": {
+                  "group": "A",
+                  "mode": "none"
+                },
+                "thresholdsStyle": {
+                  "mode": "off"
+                }
+              },
+              "decimals": 0,
+              "links": [],
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  {
+                    "color": "green",
+                    "value": null
+                  },
+                  {
+                    "color": "red",
+                    "value": 80
+                  }
+                ]
+              },
+              "unit": "none"
+            },
+            "overrides": []
+          },
+          "gridPos": {
+            "h": 8,
+            "w": 12,
+            "x": 0,
+            "y": 65
+          },
+          "id": 129,
+          "options": {
+            "legend": {
+              "calcs": [
+                "lastNotNull"
+              ],
+              "displayMode": "table",
+              "placement": "bottom",
+              "showLegend": true,
+              "sortBy": "Last *",
+              "sortDesc": true
+            },
+            "tooltip": {
+              "mode": "multi",
+              "sort": "desc"
+            }
+          },
+          "pluginVersion": "9.1.0",
+          "targets": [
+            {
+              "datasource": {
+                "type": "prometheus",
+                "uid": "$ds"
+              },
+              "editorMode": "code",
+              "expr": "sum(changes(vm_app_start_timestamp{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval]) > 0) by(job)",
+              "format": "time_series",
+              "instant": false,
+              "legendFormat": "{{job}}",
+              "refId": "A"
+            }
+          ],
+          "title": "Restarts ($job)",
+          "type": "timeseries"
         }
       ],
       "targets": [
@@ -4313,7 +4402,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 5
+            "y": 13
           },
           "id": 10,
           "links": [],
@@ -4422,7 +4511,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 5
+            "y": 13
           },
           "id": 73,
           "links": [],
@@ -4452,7 +4541,7 @@
                 "uid": "$ds"
               },
               "editorMode": "code",
-              "expr": "vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"} \n/ ignoring(path) (\n  rate(vm_rows_added_to_storage_total{job=~\"$job\", instance=~\"$instance\"}[1d]) \n  * scalar(\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\", type!~\"indexdb.*\"}) \n    / sum(vm_rows{job=~\"$job\", instance=~\"$instance\", type!~\"indexdb.*\"})\n    )\n  )",
+              "expr": "(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}-vm_free_disk_space_limit_bytes{job=~\"$job\", instance=~\"$instance\"}) \n/ ignoring(path) (\n  rate(vm_rows_added_to_storage_total{job=~\"$job\", instance=~\"$instance\"}[1d]) \n  * scalar(\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\", type!~\"indexdb.*\"}) \n    / sum(vm_rows{job=~\"$job\", instance=~\"$instance\", type!~\"indexdb.*\"})\n    )\n  )",
               "format": "time_series",
               "hide": false,
               "interval": "",
@@ -4532,7 +4621,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 13
+            "y": 21
           },
           "id": 53,
           "links": [],
@@ -4575,7 +4664,7 @@
                 "type": "prometheus",
                 "uid": "$ds"
               },
-              "expr": "vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}",
+              "expr": "vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"} - vm_free_disk_space_limit_bytes{job=~\"$job\", instance=~\"$instance\"}",
               "format": "time_series",
               "interval": "",
               "intervalFactor": 1,
@@ -4686,7 +4775,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 13
+            "y": 21
           },
           "id": 34,
           "links": [],
@@ -4824,7 +4913,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 21
+            "y": 29
           },
           "id": 30,
           "links": [],
@@ -4946,7 +5035,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 21
+            "y": 29
           },
           "id": 36,
           "links": [],
@@ -5054,7 +5143,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 29
+            "y": 37
           },
           "id": 58,
           "links": [],
@@ -5164,7 +5253,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 29
+            "y": 37
           },
           "id": 62,
           "options": {
@@ -5284,7 +5373,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 37
+            "y": 45
           },
           "id": 59,
           "links": [],
@@ -5404,7 +5493,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 37
+            "y": 45
           },
           "id": 64,
           "options": {
@@ -5510,7 +5599,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 45
+            "y": 53
           },
           "id": 99,
           "links": [],
@@ -5620,7 +5709,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 45
+            "y": 53
           },
           "id": 103,
           "links": [],
@@ -5730,7 +5819,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 53
+            "y": 61
           },
           "id": 122,
           "links": [],
@@ -5840,7 +5929,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 53
+            "y": 61
           },
           "id": 105,
           "links": [],

dashboards/vm/victoriametrics-cluster.json

@@ -4125,6 +4125,111 @@
           ],
           "title": "Rows ignored for last 1h ($instance)",
           "type": "timeseries"
+        },
+        {
+          "datasource": {
+            "type": "victoriametrics-datasource",
+            "uid": "$ds"
+          },
+          "description": "Shows the number of restarts per job. The chart can be useful to identify periodic process restarts and correlate them with potential issues or anomalies. Normally, processes shouldn't restart unless restart was inited by user. The reason of restarts should be figured out by checking the logs of each specific service. ",
+          "fieldConfig": {
+            "defaults": {
+              "color": {
+                "mode": "palette-classic"
+              },
+              "custom": {
+                "axisBorderShow": false,
+                "axisCenteredZero": false,
+                "axisColorMode": "text",
+                "axisLabel": "",
+                "axisPlacement": "auto",
+                "axisSoftMin": 0,
+                "barAlignment": 0,
+                "drawStyle": "line",
+                "fillOpacity": 0,
+                "gradientMode": "none",
+                "hideFrom": {
+                  "legend": false,
+                  "tooltip": false,
+                  "viz": false
+                },
+                "insertNulls": false,
+                "lineInterpolation": "stepAfter",
+                "lineWidth": 1,
+                "pointSize": 5,
+                "scaleDistribution": {
+                  "type": "linear"
+                },
+                "showPoints": "never",
+                "spanNulls": false,
+                "stacking": {
+                  "group": "A",
+                  "mode": "none"
+                },
+                "thresholdsStyle": {
+                  "mode": "off"
+                }
+              },
+              "decimals": 0,
+              "links": [],
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  {
+                    "color": "green",
+                    "value": null
+                  },
+                  {
+                    "color": "red",
+                    "value": 80
+                  }
+                ]
+              },
+              "unit": "none"
+            },
+            "overrides": []
+          },
+          "gridPos": {
+            "h": 8,
+            "w": 12,
+            "x": 12,
+            "y": 70
+          },
+          "id": 214,
+          "options": {
+            "legend": {
+              "calcs": [
+                "lastNotNull"
+              ],
+              "displayMode": "table",
+              "placement": "bottom",
+              "showLegend": true,
+              "sortBy": "Last *",
+              "sortDesc": true
+            },
+            "tooltip": {
+              "mode": "multi",
+              "sort": "desc"
+            }
+          },
+          "pluginVersion": "9.1.0",
+          "targets": [
+            {
+              "datasource": {
+                "type": "victoriametrics-datasource",
+                "uid": "$ds"
+              },
+              "editorMode": "code",
+              "expr": "sum(changes(vm_app_start_timestamp{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval]) > 0) by(job)",
+              "format": "time_series",
+              "instant": false,
+              "legendFormat": "{{job}}",
+              "refId": "A"
+            }
+          ],
+          "title": "Restarts ($job)",
+          "type": "timeseries"
         }
       ],
       "title": "Troubleshooting",
@@ -5038,7 +5143,7 @@
                 "uid": "$ds"
               },
               "editorMode": "code",
-              "expr": "min(vm_free_disk_space_bytes{job=~\"$job_storage\", instance=~\"$instance\"} \n/ \nignoring(path) (\n    rate(vm_rows_added_to_storage_total{job=~\"$job_storage\", instance=~\"$instance\"}[1d])\n    * scalar(\n            sum(vm_data_size_bytes{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            / \n            sum(vm_rows{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            )\n))",
+              "expr": "min((vm_free_disk_space_bytes{job=~\"$job_storage\", instance=~\"$instance\"} - vm_free_disk_space_limit_bytes{job=~\"$job_storage\", instance=~\"$instance\"}) \n/ \nignoring(path) (\n    rate(vm_rows_added_to_storage_total{job=~\"$job_storage\", instance=~\"$instance\"}[1d])\n    * scalar(\n            sum(vm_data_size_bytes{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            / \n            sum(vm_rows{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            )\n))",
               "format": "time_series",
               "interval": "",
               "intervalFactor": 1,
@@ -5928,7 +6033,7 @@
                 "uid": "$ds"
               },
               "editorMode": "code",
-              "expr": "max(\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n    (\n        sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n        sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n    ) \n)",
+              "expr": "max(\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n    (\n        sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}-vm_free_disk_space_limit_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n        sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n    ) \n)",
               "format": "time_series",
               "intervalFactor": 1,
               "legendFormat": "max",
@@ -5941,7 +6046,7 @@
                 "uid": "$ds"
               },
               "editorMode": "code",
-              "expr": "min(\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n    (\n        sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n        sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n    ) \n)",
+              "expr": "min(\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n    (\n        sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}-vm_free_disk_space_limit_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n        sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n    ) \n)",
               "format": "time_series",
               "hide": false,
               "intervalFactor": 1,
@@ -5955,7 +6060,7 @@
                 "uid": "$ds"
               },
               "editorMode": "code",
-              "expr": "quantile(0.5,\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n    (\n        sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n        sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n    ) \n)",
+              "expr": "quantile(0.5,\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n    (\n        sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}-vm_free_disk_space_limit_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n        sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n    ) \n)",
               "format": "time_series",
               "hide": false,
               "intervalFactor": 1,
@@ -9374,7 +9479,7 @@
                 "uid": "$ds"
               },
               "editorMode": "code",
-              "expr": "vm_free_disk_space_bytes{job=~\"$job_storage\", instance=~\"$instance\"} \n/ \nignoring(path) (\n    rate(vm_rows_added_to_storage_total{job=~\"$job_storage\", instance=~\"$instance\"}[1d])\n    * scalar(\n            sum(vm_data_size_bytes{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            / \n            sum(vm_rows{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            )\n)",
+              "expr": "(vm_free_disk_space_bytes{job=~\"$job_storage\", instance=~\"$instance\"}-vm_free_disk_space_limit_bytes{job=~\"$job_storage\", instance=~\"$instance\"}) \n/ \nignoring(path) (\n    rate(vm_rows_added_to_storage_total{job=~\"$job_storage\", instance=~\"$instance\"}[1d])\n    * scalar(\n            sum(vm_data_size_bytes{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            / \n            sum(vm_rows{job=~\"$job_storage\", instance=~\"$instance\", type!~\"indexdb.*\"})\n            )\n)",
               "format": "time_series",
               "interval": "",
               "intervalFactor": 1,

dashboards/vm/victoriametrics.json

@@ -1570,7 +1570,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 3
+            "y": 11
           },
           "id": 112,
           "links": [],
@@ -1678,7 +1678,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 3
+            "y": 11
           },
           "id": 44,
           "options": {
@@ -1845,7 +1845,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 11
+            "y": 19
           },
           "id": 123,
           "links": [],
@@ -1952,7 +1952,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 11
+            "y": 19
           },
           "id": 114,
           "options": {
@@ -2045,8 +2045,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2078,7 +2077,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 19
+            "y": 27
           },
           "id": 75,
           "options": {
@@ -2170,8 +2169,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2203,7 +2201,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 19
+            "y": 27
           },
           "id": 57,
           "options": {
@@ -2310,8 +2308,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2327,7 +2324,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 27
+            "y": 35
           },
           "id": 47,
           "options": {
@@ -2416,8 +2413,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2446,7 +2442,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 27
+            "y": 35
           },
           "id": 76,
           "options": {
@@ -2553,8 +2549,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2570,7 +2565,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 35
+            "y": 43
           },
           "id": 48,
           "options": {
@@ -2659,8 +2654,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2689,7 +2683,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 35
+            "y": 43
           },
           "id": 124,
           "options": {
@@ -2796,8 +2790,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2813,7 +2806,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 43
+            "y": 51
           },
           "id": 49,
           "options": {
@@ -2904,8 +2897,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2921,7 +2913,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 43
+            "y": 51
           },
           "id": 37,
           "options": {
@@ -3011,8 +3003,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -3041,7 +3032,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 51
+            "y": 59
           },
           "id": 127,
           "options": {
@@ -3147,8 +3138,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -3164,7 +3154,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 51
+            "y": 59
           },
           "id": 125,
           "options": {
@@ -3254,8 +3244,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -3271,7 +3260,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 59
+            "y": 67
           },
           "id": 128,
           "options": {
@@ -3387,7 +3376,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3395,8 +3385,7 @@
                   }
                 ]
               },
-              "unit": "short",
-              "unitScale": true
+              "unit": "short"
             },
             "overrides": []
           },
@@ -3404,7 +3393,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 4
+            "y": 32
           },
           "id": 66,
           "options": {
@@ -3506,7 +3495,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "transparent"
+                    "color": "transparent",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3514,8 +3504,7 @@
                   }
                 ]
               },
-              "unit": "percentunit",
-              "unitScale": true
+              "unit": "percentunit"
             },
             "overrides": []
           },
@@ -3523,10 +3512,9 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 4
+            "y": 32
           },
           "id": 68,
-          "links": [],
           "options": {
             "legend": {
               "calcs": [
@@ -3616,7 +3604,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3624,8 +3613,7 @@
                   }
                 ]
               },
-              "unit": "short",
-              "unitScale": true
+              "unit": "short"
             },
             "overrides": []
           },
@@ -3633,10 +3621,9 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 12
+            "y": 40
           },
           "id": 116,
-          "links": [],
           "options": {
             "legend": {
               "calcs": [
@@ -3724,7 +3711,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3732,8 +3720,7 @@
                   }
                 ]
               },
-              "unit": "short",
-              "unitScale": true
+              "unit": "short"
             },
             "overrides": []
           },
@@ -3741,10 +3728,9 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 12
+            "y": 40
           },
           "id": 60,
-          "links": [],
           "options": {
             "legend": {
               "calcs": [
@@ -3831,7 +3817,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3839,8 +3826,7 @@
                   }
                 ]
               },
-              "unit": "percentunit",
-              "unitScale": true
+              "unit": "percentunit"
             },
             "overrides": []
           },
@@ -3848,7 +3834,7 @@
             "h": 9,
             "w": 12,
             "x": 0,
-            "y": 20
+            "y": 48
           },
           "id": 90,
           "options": {
@@ -3939,7 +3925,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3947,8 +3934,7 @@
                   }
                 ]
               },
-              "unit": "percentunit",
-              "unitScale": true
+              "unit": "percentunit"
             },
             "overrides": []
           },
@@ -3956,10 +3942,9 @@
             "h": 9,
             "w": 12,
             "x": 12,
-            "y": 20
+            "y": 48
           },
           "id": 118,
-          "links": [],
           "options": {
             "legend": {
               "calcs": [
@@ -4023,15 +4008,15 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
                     "value": 80
                   }
                 ]
-              },
-              "unitScale": true
+              }
             },
             "overrides": [
               {
@@ -4076,7 +4061,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 29
+            "y": 57
           },
           "id": 126,
           "options": {
@@ -4091,7 +4076,7 @@
             },
             "showHeader": true
           },
-          "pluginVersion": "10.3.1",
+          "pluginVersion": "10.4.2",
           "targets": [
             {
               "datasource": {
@@ -4162,7 +4147,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -4170,8 +4156,7 @@
                   }
                 ]
               },
-              "unit": "short",
-              "unitScale": true
+              "unit": "short"
             },
             "overrides": []
           },
@@ -4179,10 +4164,9 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 29
+            "y": 57
           },
           "id": 74,
-          "links": [],
           "options": {
             "legend": {
               "calcs": [
@@ -4219,6 +4203,111 @@
           ],
           "title": "Labels limit exceeded",
           "type": "timeseries"
+        },
+        {
+          "datasource": {
+            "type": "victoriametrics-datasource",
+            "uid": "$ds"
+          },
+          "description": "Shows the number of restarts per job. The chart can be useful to identify periodic process restarts and correlate them with potential issues or anomalies. Normally, processes shouldn't restart unless restart was inited by user. The reason of restarts should be figured out by checking the logs of each specific service. ",
+          "fieldConfig": {
+            "defaults": {
+              "color": {
+                "mode": "palette-classic"
+              },
+              "custom": {
+                "axisBorderShow": false,
+                "axisCenteredZero": false,
+                "axisColorMode": "text",
+                "axisLabel": "",
+                "axisPlacement": "auto",
+                "axisSoftMin": 0,
+                "barAlignment": 0,
+                "drawStyle": "line",
+                "fillOpacity": 0,
+                "gradientMode": "none",
+                "hideFrom": {
+                  "legend": false,
+                  "tooltip": false,
+                  "viz": false
+                },
+                "insertNulls": false,
+                "lineInterpolation": "stepAfter",
+                "lineWidth": 1,
+                "pointSize": 5,
+                "scaleDistribution": {
+                  "type": "linear"
+                },
+                "showPoints": "never",
+                "spanNulls": false,
+                "stacking": {
+                  "group": "A",
+                  "mode": "none"
+                },
+                "thresholdsStyle": {
+                  "mode": "off"
+                }
+              },
+              "decimals": 0,
+              "links": [],
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  {
+                    "color": "green",
+                    "value": null
+                  },
+                  {
+                    "color": "red",
+                    "value": 80
+                  }
+                ]
+              },
+              "unit": "none"
+            },
+            "overrides": []
+          },
+          "gridPos": {
+            "h": 8,
+            "w": 12,
+            "x": 0,
+            "y": 65
+          },
+          "id": 129,
+          "options": {
+            "legend": {
+              "calcs": [
+                "lastNotNull"
+              ],
+              "displayMode": "table",
+              "placement": "bottom",
+              "showLegend": true,
+              "sortBy": "Last *",
+              "sortDesc": true
+            },
+            "tooltip": {
+              "mode": "multi",
+              "sort": "desc"
+            }
+          },
+          "pluginVersion": "9.1.0",
+          "targets": [
+            {
+              "datasource": {
+                "type": "victoriametrics-datasource",
+                "uid": "$ds"
+              },
+              "editorMode": "code",
+              "expr": "sum(changes(vm_app_start_timestamp{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval]) > 0) by(job)",
+              "format": "time_series",
+              "instant": false,
+              "legendFormat": "{{job}}",
+              "refId": "A"
+            }
+          ],
+          "title": "Restarts ($job)",
+          "type": "timeseries"
         }
       ],
       "targets": [
@@ -4314,7 +4403,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 5
+            "y": 13
           },
           "id": 10,
           "links": [],
@@ -4423,7 +4512,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 5
+            "y": 13
           },
           "id": 73,
           "links": [],
@@ -4453,7 +4542,7 @@
                 "uid": "$ds"
               },
               "editorMode": "code",
-              "expr": "vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"} \n/ ignoring(path) (\n  rate(vm_rows_added_to_storage_total{job=~\"$job\", instance=~\"$instance\"}[1d]) \n  * scalar(\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\", type!~\"indexdb.*\"}) \n    / sum(vm_rows{job=~\"$job\", instance=~\"$instance\", type!~\"indexdb.*\"})\n    )\n  )",
+              "expr": "(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}-vm_free_disk_space_limit_bytes{job=~\"$job\", instance=~\"$instance\"}) \n/ ignoring(path) (\n  rate(vm_rows_added_to_storage_total{job=~\"$job\", instance=~\"$instance\"}[1d]) \n  * scalar(\n    sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\", type!~\"indexdb.*\"}) \n    / sum(vm_rows{job=~\"$job\", instance=~\"$instance\", type!~\"indexdb.*\"})\n    )\n  )",
               "format": "time_series",
               "hide": false,
               "interval": "",
@@ -4533,7 +4622,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 13
+            "y": 21
           },
           "id": 53,
           "links": [],
@@ -4576,7 +4665,7 @@
                 "type": "victoriametrics-datasource",
                 "uid": "$ds"
               },
-              "expr": "vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}",
+              "expr": "vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"} - vm_free_disk_space_limit_bytes{job=~\"$job\", instance=~\"$instance\"}",
               "format": "time_series",
               "interval": "",
               "intervalFactor": 1,
@@ -4687,7 +4776,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 13
+            "y": 21
           },
           "id": 34,
           "links": [],
@@ -4825,7 +4914,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 21
+            "y": 29
           },
           "id": 30,
           "links": [],
@@ -4947,7 +5036,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 21
+            "y": 29
           },
           "id": 36,
           "links": [],
@@ -5055,7 +5144,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 29
+            "y": 37
           },
           "id": 58,
           "links": [],
@@ -5165,7 +5254,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 29
+            "y": 37
           },
           "id": 62,
           "options": {
@@ -5285,7 +5374,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 37
+            "y": 45
           },
           "id": 59,
           "links": [],
@@ -5405,7 +5494,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 37
+            "y": 45
           },
           "id": 64,
           "options": {
@@ -5511,7 +5600,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 45
+            "y": 53
           },
           "id": 99,
           "links": [],
@@ -5621,7 +5710,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 45
+            "y": 53
           },
           "id": 103,
           "links": [],
@@ -5731,7 +5820,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 53
+            "y": 61
           },
           "id": 122,
           "links": [],
@@ -5841,7 +5930,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 53
+            "y": 61
           },
           "id": 105,
           "links": [],

dashboards/vm/vmagent.json

@@ -951,7 +951,7 @@
         "type": "victoriametrics-datasource",
         "uid": "$ds"
       },
-      "description": "Shows the persistent queue size of pending samples in bytes >2MB which hasn't been flushed to remote storage yet. \n\nIncreasing of value might be a sign of connectivity issues. In such cases, vmagent starts to flush pending data on disk with attempt to send it later once connection is restored.\n\nRemote write URLs are hidden by default but might be unveiled once `-remoteWrite.showURL` is set to true.\n\nClick on the line and choose Drilldown to show CPU usage per instance.\n",
+      "description": "Shows the persistent queue size of pending samples in bytes >2MB which hasn't been flushed to remote storage yet. \n\nIncreasing of value might be a sign of connectivity issues. In such cases, vmagent starts to flush pending data on disk with attempt to send it later once connection is restored.\n\nRemote write URLs are hidden by default but might be unveiled once `-remoteWrite.showURL` is set to true.\n\nClick on the line and choose Drilldown to show the persistent queue size per instance.\n",
       "fieldConfig": {
         "defaults": {
           "color": {
@@ -1336,8 +1336,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": null
+                "color": "green"
               },
               {
                 "color": "red",
@@ -1440,8 +1439,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": null
+                "color": "green"
               },
               {
                 "color": "red",
@@ -1619,7 +1617,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -1635,7 +1634,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 35
+            "y": 3
           },
           "id": 109,
           "options": {
@@ -1750,7 +1749,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 35
+            "y": 3
           },
           "id": 111,
           "options": {
@@ -1875,7 +1874,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 43
+            "y": 11
           },
           "id": 81,
           "options": {
@@ -2011,7 +2010,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 43
+            "y": 11
           },
           "id": 7,
           "options": {
@@ -2130,7 +2129,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 51
+            "y": 19
           },
           "id": 83,
           "options": {
@@ -2236,7 +2235,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 51
+            "y": 19
           },
           "id": 39,
           "options": {
@@ -2343,7 +2342,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 59
+            "y": 27
           },
           "id": 135,
           "options": {
@@ -2450,7 +2449,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 59
+            "y": 27
           },
           "id": 149,
           "options": {
@@ -2556,7 +2555,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 67
+            "y": 35
           },
           "id": 41,
           "options": {
@@ -2669,7 +2668,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -2685,7 +2685,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 20
+            "y": 4
           },
           "id": 92,
           "options": {
@@ -2773,7 +2773,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -2789,7 +2790,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 20
+            "y": 4
           },
           "id": 95,
           "options": {
@@ -2834,7 +2835,7 @@
             "type": "victoriametrics-datasource",
             "uid": "$ds"
           },
-          "description": "Shows saturation persistent queue for writes. If the threshold of 0.9sec is reached, then persistent is saturated by more than 90% and vmagent won't be able to keep up with flushing data on disk. In this case, consider to decrease load on the vmagent or improve the disk throughput.",
+          "description": "Shows write saturation of the persistent queue. If the threshold of 0.9sec is reached, then the persistent queue is saturated by more than 90% and vmagent won't be able to keep up with flushing data on disk. In this case, consider to decrease load on the vmagent or improve the disk throughput.",
           "fieldConfig": {
             "defaults": {
               "color": {
@@ -2880,7 +2881,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "transparent"
+                    "color": "transparent",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -2896,7 +2898,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 28
+            "y": 12
           },
           "id": 98,
           "options": {
@@ -2941,7 +2943,7 @@
             "type": "victoriametrics-datasource",
             "uid": "$ds"
           },
-          "description": "Shows saturation persistent queue for reads. If the threshold of 0.9sec is reached, then persistent is saturated by more than 90% and vmagent won't be able to keep up with reading data from the disk. In this case, consider to decrease load on the vmagent or improve the disk throughput.",
+          "description": "Shows read saturation of the persistent queue. If the threshold of 0.9sec is reached, then the persistent queue is saturated by more than 90% and vmagent won't be able to keep up with reading data from the disk. In this case, consider to decrease load on the vmagent or improve the disk throughput.",
           "fieldConfig": {
             "defaults": {
               "color": {
@@ -2987,7 +2989,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "transparent"
+                    "color": "transparent",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3003,7 +3006,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 28
+            "y": 12
           },
           "id": 99,
           "options": {
@@ -3055,6 +3058,7 @@
                 "mode": "palette-classic"
               },
               "custom": {
+                "axisBorderShow": false,
                 "axisCenteredZero": false,
                 "axisColorMode": "text",
                 "axisLabel": "",
@@ -3068,6 +3072,7 @@
                   "tooltip": false,
                   "viz": false
                 },
+                "insertNulls": false,
                 "lineInterpolation": "linear",
                 "lineWidth": 1,
                 "pointSize": 5,
@@ -3091,7 +3096,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3107,7 +3113,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 36
+            "y": 20
           },
           "id": 79,
           "options": {
@@ -3159,6 +3165,7 @@
                 "mode": "palette-classic"
               },
               "custom": {
+                "axisBorderShow": false,
                 "axisCenteredZero": false,
                 "axisColorMode": "text",
                 "axisLabel": "",
@@ -3172,6 +3179,7 @@
                   "tooltip": false,
                   "viz": false
                 },
+                "insertNulls": false,
                 "lineInterpolation": "linear",
                 "lineWidth": 1,
                 "pointSize": 5,
@@ -3195,7 +3203,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3211,7 +3220,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 36
+            "y": 20
           },
           "id": 18,
           "links": [
@@ -3269,6 +3278,7 @@
                 "mode": "palette-classic"
               },
               "custom": {
+                "axisBorderShow": false,
                 "axisCenteredZero": false,
                 "axisColorMode": "text",
                 "axisLabel": "",
@@ -3282,6 +3292,7 @@
                   "tooltip": false,
                   "viz": false
                 },
+                "insertNulls": false,
                 "lineInterpolation": "linear",
                 "lineWidth": 1,
                 "pointSize": 5,
@@ -3305,7 +3316,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3321,7 +3333,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 44
+            "y": 28
           },
           "id": 127,
           "options": {
@@ -3371,6 +3383,7 @@
                 "mode": "palette-classic"
               },
               "custom": {
+                "axisBorderShow": false,
                 "axisCenteredZero": false,
                 "axisColorMode": "text",
                 "axisLabel": "",
@@ -3384,6 +3397,7 @@
                   "tooltip": false,
                   "viz": false
                 },
+                "insertNulls": false,
                 "lineInterpolation": "linear",
                 "lineWidth": 1,
                 "pointSize": 5,
@@ -3407,7 +3421,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3423,7 +3438,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 44
+            "y": 28
           },
           "id": 50,
           "options": {
@@ -3483,7 +3498,8 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green"
+                    "color": "green",
+                    "value": null
                   },
                   {
                     "color": "red",
@@ -3521,13 +3537,15 @@
           },
           "gridPos": {
             "h": 7,
-            "w": 24,
+            "w": 12,
             "x": 0,
-            "y": 52
+            "y": 36
           },
           "id": 129,
           "options": {
+            "cellHeight": "sm",
             "footer": {
+              "countRows": false,
               "fields": "",
               "reducer": [
                 "sum"
@@ -3542,7 +3560,7 @@
               }
             ]
           },
-          "pluginVersion": "9.2.6",
+          "pluginVersion": "10.4.2",
           "targets": [
             {
               "datasource": {
@@ -3585,6 +3603,111 @@
             }
           ],
           "type": "table"
+        },
+        {
+          "datasource": {
+            "type": "victoriametrics-datasource",
+            "uid": "$ds"
+          },
+          "description": "Shows the number of restarts per job. The chart can be useful to identify periodic process restarts and correlate them with potential issues or anomalies. Normally, processes shouldn't restart unless restart was inited by user. The reason of restarts should be figured out by checking the logs of each specific service. ",
+          "fieldConfig": {
+            "defaults": {
+              "color": {
+                "mode": "palette-classic"
+              },
+              "custom": {
+                "axisBorderShow": false,
+                "axisCenteredZero": false,
+                "axisColorMode": "text",
+                "axisLabel": "",
+                "axisPlacement": "auto",
+                "axisSoftMin": 0,
+                "barAlignment": 0,
+                "drawStyle": "line",
+                "fillOpacity": 0,
+                "gradientMode": "none",
+                "hideFrom": {
+                  "legend": false,
+                  "tooltip": false,
+                  "viz": false
+                },
+                "insertNulls": false,
+                "lineInterpolation": "stepAfter",
+                "lineWidth": 1,
+                "pointSize": 5,
+                "scaleDistribution": {
+                  "type": "linear"
+                },
+                "showPoints": "never",
+                "spanNulls": false,
+                "stacking": {
+                  "group": "A",
+                  "mode": "none"
+                },
+                "thresholdsStyle": {
+                  "mode": "off"
+                }
+              },
+              "decimals": 0,
+              "links": [],
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  {
+                    "color": "green",
+                    "value": null
+                  },
+                  {
+                    "color": "red",
+                    "value": 80
+                  }
+                ]
+              },
+              "unit": "none"
+            },
+            "overrides": []
+          },
+          "gridPos": {
+            "h": 7,
+            "w": 12,
+            "x": 12,
+            "y": 36
+          },
+          "id": 150,
+          "options": {
+            "legend": {
+              "calcs": [
+                "lastNotNull"
+              ],
+              "displayMode": "table",
+              "placement": "bottom",
+              "showLegend": true,
+              "sortBy": "Last *",
+              "sortDesc": true
+            },
+            "tooltip": {
+              "mode": "multi",
+              "sort": "desc"
+            }
+          },
+          "pluginVersion": "9.1.0",
+          "targets": [
+            {
+              "datasource": {
+                "type": "victoriametrics-datasource",
+                "uid": "$ds"
+              },
+              "editorMode": "code",
+              "expr": "sum(changes(vm_app_start_timestamp{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval]) > 0) by(job)",
+              "format": "time_series",
+              "instant": false,
+              "legendFormat": "{{job}}",
+              "refId": "A"
+            }
+          ],
+          "title": "Restarts ($job)",
+          "type": "timeseries"
         }
       ],
       "targets": [
@@ -3678,7 +3801,7 @@
             "h": 7,
             "w": 12,
             "x": 0,
-            "y": 45
+            "y": 53
           },
           "id": 48,
           "options": {
@@ -3784,7 +3907,7 @@
             "h": 7,
             "w": 12,
             "x": 12,
-            "y": 45
+            "y": 53
           },
           "id": 76,
           "options": {
@@ -3888,7 +4011,7 @@
             "h": 7,
             "w": 12,
             "x": 0,
-            "y": 52
+            "y": 60
           },
           "id": 132,
           "options": {
@@ -3994,7 +4117,7 @@
             "h": 7,
             "w": 12,
             "x": 12,
-            "y": 52
+            "y": 60
           },
           "id": 133,
           "options": {
@@ -4099,7 +4222,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 59
+            "y": 67
           },
           "id": 20,
           "options": {
@@ -4203,7 +4326,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 59
+            "y": 67
           },
           "id": 126,
           "options": {
@@ -4306,7 +4429,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 67
+            "y": 75
           },
           "id": 46,
           "options": {
@@ -4409,7 +4532,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 67
+            "y": 75
           },
           "id": 148,
           "options": {
@@ -4512,7 +4635,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 75
+            "y": 83
           },
           "id": 31,
           "options": {
@@ -4691,7 +4814,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 22
+            "y": 30
           },
           "id": 73,
           "options": {
@@ -4808,7 +4931,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 14
+            "y": 22
           },
           "id": 131,
           "options": {
@@ -4912,7 +5035,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 22
+            "y": 30
           },
           "id": 130,
           "options": {
@@ -5029,7 +5152,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 22
+            "y": 30
           },
           "id": 77,
           "options": {
@@ -5163,7 +5286,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 15
+            "y": 23
           },
           "id": 146,
           "options": {
@@ -5265,7 +5388,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 15
+            "y": 23
           },
           "id": 143,
           "options": {
@@ -5361,7 +5484,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 23
+            "y": 31
           },
           "id": 147,
           "options": {
@@ -5464,7 +5587,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 23
+            "y": 31
           },
           "id": 139,
           "options": {
@@ -5575,7 +5698,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 31
+            "y": 39
           },
           "id": 142,
           "options": {
@@ -5672,7 +5795,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 31
+            "y": 39
           },
           "id": 137,
           "options": {
@@ -5785,7 +5908,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 39
+            "y": 47
           },
           "id": 141,
           "options": {
@@ -5916,7 +6039,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 16
+            "y": 24
           },
           "id": 60,
           "options": {
@@ -6020,7 +6143,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 16
+            "y": 24
           },
           "id": 66,
           "options": {
@@ -6124,7 +6247,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 24
+            "y": 32
           },
           "id": 61,
           "options": {
@@ -6228,7 +6351,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 24
+            "y": 32
           },
           "id": 65,
           "options": {
@@ -6331,7 +6454,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 32
+            "y": 40
           },
           "id": 88,
           "options": {
@@ -6430,7 +6553,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 32
+            "y": 40
           },
           "id": 84,
           "options": {
@@ -6533,7 +6656,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 40
+            "y": 48
           },
           "id": 90,
           "options": {
@@ -6599,7 +6722,7 @@
             "h": 2,
             "w": 24,
             "x": 0,
-            "y": 25
+            "y": 33
           },
           "id": 115,
           "options": {
@@ -6677,7 +6800,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 27
+            "y": 35
           },
           "id": 119,
           "options": {
@@ -6781,7 +6904,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 27
+            "y": 35
           },
           "id": 117,
           "options": {
@@ -6887,7 +7010,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 35
+            "y": 43
           },
           "id": 125,
           "links": [
@@ -7009,7 +7132,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 35
+            "y": 43
           },
           "id": 123,
           "options": {
@@ -7139,7 +7262,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 43
+            "y": 51
           },
           "id": 121,
           "options": {
@@ -7212,8 +7335,8 @@
       {
         "current": {
           "selected": false,
-          "text": "VictoriaMetrics",
-          "value": "P4169E866C3094E38"
+          "text": "VictoriaMetrics - cluster",
+          "value": "PAF93674D0B4E9963"
         },
         "hide": 0,
         "includeAll": false,

dashboards/vm/vmalert.json

@@ -1126,234 +1126,6 @@
       "title": "Rules execution errors ($instance)",
       "type": "timeseries"
     },
-    {
-      "datasource": {
-        "type": "victoriametrics-datasource",
-        "uid": "$ds"
-      },
-      "fieldConfig": {
-        "defaults": {
-          "color": {
-            "mode": "thresholds"
-          },
-          "custom": {
-            "align": "auto",
-            "cellOptions": {
-              "type": "auto"
-            },
-            "inspect": false
-          },
-          "mappings": [],
-          "thresholds": {
-            "mode": "absolute",
-            "steps": [
-              {
-                "color": "green"
-              },
-              {
-                "color": "red",
-                "value": 80
-              }
-            ]
-          }
-        },
-        "overrides": [
-          {
-            "matcher": {
-              "id": "byName",
-              "options": "Value"
-            },
-            "properties": [
-              {
-                "id": "custom.hidden",
-                "value": true
-              }
-            ]
-          },
-          {
-            "matcher": {
-              "id": "byName",
-              "options": "Time"
-            },
-            "properties": [
-              {
-                "id": "custom.hidden",
-                "value": true
-              }
-            ]
-          }
-        ]
-      },
-      "gridPos": {
-        "h": 7,
-        "w": 12,
-        "x": 0,
-        "y": 25
-      },
-      "id": 50,
-      "options": {
-        "footer": {
-          "fields": "",
-          "reducer": [
-            "sum"
-          ],
-          "show": false
-        },
-        "showHeader": true,
-        "sortBy": [
-          {
-            "desc": true,
-            "displayName": "job"
-          }
-        ]
-      },
-      "pluginVersion": "9.2.7",
-      "targets": [
-        {
-          "datasource": {
-            "type": "victoriametrics-datasource",
-            "uid": "$ds"
-          },
-          "editorMode": "code",
-          "exemplar": false,
-          "expr": "sum(flag{is_set=\"true\", job=~\"$job\", instance=~\"$instance\"}) by(job, instance, name, value)",
-          "format": "table",
-          "instant": true,
-          "legendFormat": "__auto",
-          "range": false,
-          "refId": "A"
-        }
-      ],
-      "title": "Non-default flags",
-      "transformations": [
-        {
-          "id": "groupBy",
-          "options": {
-            "fields": {
-              "instance": {
-                "aggregations": [
-                  "uniqueValues"
-                ],
-                "operation": "aggregate"
-              },
-              "job": {
-                "aggregations": [],
-                "operation": "groupby"
-              },
-              "name": {
-                "aggregations": [],
-                "operation": "groupby"
-              },
-              "value": {
-                "aggregations": [],
-                "operation": "groupby"
-              }
-            }
-          }
-        }
-      ],
-      "type": "table"
-    },
-    {
-      "datasource": {
-        "type": "victoriametrics-datasource",
-        "uid": "$ds"
-      },
-      "description": "Missed evaluation means that group evaluation time takes longer than the configured evaluation interval. \nThis may result in missed alerting notifications or recording rules samples. Try increasing evaluation interval or concurrency for such groups. See https://docs.victoriametrics.com/vmalert/#groups\n\nIf rule expressions are taking longer than expected, please see https://docs.victoriametrics.com/troubleshooting/#slow-queries.\"",
-      "fieldConfig": {
-        "defaults": {
-          "color": {
-            "mode": "palette-classic"
-          },
-          "custom": {
-            "axisCenteredZero": false,
-            "axisColorMode": "text",
-            "axisLabel": "",
-            "axisPlacement": "auto",
-            "barAlignment": 0,
-            "drawStyle": "bars",
-            "fillOpacity": 10,
-            "gradientMode": "none",
-            "hideFrom": {
-              "legend": false,
-              "tooltip": false,
-              "viz": false
-            },
-            "lineInterpolation": "linear",
-            "lineWidth": 1,
-            "pointSize": 5,
-            "scaleDistribution": {
-              "type": "linear"
-            },
-            "showPoints": "never",
-            "spanNulls": false,
-            "stacking": {
-              "group": "A",
-              "mode": "none"
-            },
-            "thresholdsStyle": {
-              "mode": "off"
-            }
-          },
-          "mappings": [],
-          "thresholds": {
-            "mode": "absolute",
-            "steps": [
-              {
-                "color": "green"
-              },
-              {
-                "color": "red",
-                "value": 80
-              }
-            ]
-          },
-          "unit": "short"
-        },
-        "overrides": []
-      },
-      "gridPos": {
-        "h": 7,
-        "w": 12,
-        "x": 12,
-        "y": 25
-      },
-      "id": 58,
-      "options": {
-        "legend": {
-          "calcs": [
-            "mean",
-            "lastNotNull",
-            "max"
-          ],
-          "displayMode": "table",
-          "placement": "bottom",
-          "showLegend": true
-        },
-        "tooltip": {
-          "mode": "multi",
-          "sort": "none"
-        }
-      },
-      "pluginVersion": "9.2.6",
-      "targets": [
-        {
-          "datasource": {
-            "type": "victoriametrics-datasource",
-            "uid": "$ds"
-          },
-          "editorMode": "code",
-          "exemplar": false,
-          "expr": "sum(increase(vmalert_iteration_missed_total{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval])) by(job, group) > 0",
-          "interval": "1m",
-          "legendFormat": "__auto",
-          "range": true,
-          "refId": "A"
-        }
-      ],
-      "title": "Missed evaluations ($instance)",
-      "type": "timeseries"
-    },
     {
       "collapsed": true,
       "datasource": {
@@ -1364,7 +1136,7 @@
         "h": 1,
         "w": 24,
         "x": 0,
-        "y": 32
+        "y": 25
       },
       "id": 43,
       "panels": [
@@ -1435,7 +1207,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 3
+            "y": 11
           },
           "id": 37,
           "links": [
@@ -1532,8 +1304,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -1549,7 +1320,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 3
+            "y": 11
           },
           "id": 57,
           "links": [
@@ -1663,7 +1434,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 11
+            "y": 19
           },
           "id": 35,
           "links": [
@@ -1779,7 +1550,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 11
+            "y": 19
           },
           "id": 56,
           "links": [
@@ -1912,7 +1683,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 19
+            "y": 27
           },
           "id": 39,
           "links": [],
@@ -2020,7 +1791,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 19
+            "y": 27
           },
           "id": 41,
           "links": [],
@@ -2128,7 +1899,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 27
+            "y": 35
           },
           "id": 59,
           "links": [],
@@ -2219,8 +1990,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -2236,7 +2006,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 27
+            "y": 35
           },
           "id": 61,
           "options": {
@@ -2288,6 +2058,359 @@
       "title": "Resource usage",
       "type": "row"
     },
+    {
+      "collapsed": true,
+      "gridPos": {
+        "h": 1,
+        "w": 24,
+        "x": 0,
+        "y": 26
+      },
+      "id": 62,
+      "panels": [
+        {
+          "datasource": {
+            "type": "victoriametrics-datasource",
+            "uid": "$ds"
+          },
+          "fieldConfig": {
+            "defaults": {
+              "color": {
+                "mode": "thresholds"
+              },
+              "custom": {
+                "align": "auto",
+                "cellOptions": {
+                  "type": "auto"
+                },
+                "inspect": false
+              },
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  {
+                    "color": "green",
+                    "value": null
+                  },
+                  {
+                    "color": "red",
+                    "value": 80
+                  }
+                ]
+              }
+            },
+            "overrides": [
+              {
+                "matcher": {
+                  "id": "byName",
+                  "options": "Value"
+                },
+                "properties": [
+                  {
+                    "id": "custom.hidden",
+                    "value": true
+                  }
+                ]
+              },
+              {
+                "matcher": {
+                  "id": "byName",
+                  "options": "Time"
+                },
+                "properties": [
+                  {
+                    "id": "custom.hidden",
+                    "value": true
+                  }
+                ]
+              }
+            ]
+          },
+          "gridPos": {
+            "h": 7,
+            "w": 12,
+            "x": 0,
+            "y": 27
+          },
+          "id": 50,
+          "options": {
+            "cellHeight": "sm",
+            "footer": {
+              "countRows": false,
+              "fields": "",
+              "reducer": [
+                "sum"
+              ],
+              "show": false
+            },
+            "showHeader": true,
+            "sortBy": [
+              {
+                "desc": true,
+                "displayName": "job"
+              }
+            ]
+          },
+          "pluginVersion": "10.4.2",
+          "targets": [
+            {
+              "datasource": {
+                "type": "victoriametrics-datasource",
+                "uid": "$ds"
+              },
+              "editorMode": "code",
+              "exemplar": false,
+              "expr": "sum(flag{is_set=\"true\", job=~\"$job\", instance=~\"$instance\"}) by(job, instance, name, value)",
+              "format": "table",
+              "instant": true,
+              "legendFormat": "__auto",
+              "range": false,
+              "refId": "A"
+            }
+          ],
+          "title": "Non-default flags",
+          "transformations": [
+            {
+              "id": "groupBy",
+              "options": {
+                "fields": {
+                  "instance": {
+                    "aggregations": [
+                      "uniqueValues"
+                    ],
+                    "operation": "aggregate"
+                  },
+                  "job": {
+                    "aggregations": [],
+                    "operation": "groupby"
+                  },
+                  "name": {
+                    "aggregations": [],
+                    "operation": "groupby"
+                  },
+                  "value": {
+                    "aggregations": [],
+                    "operation": "groupby"
+                  }
+                }
+              }
+            }
+          ],
+          "type": "table"
+        },
+        {
+          "datasource": {
+            "type": "victoriametrics-datasource",
+            "uid": "$ds"
+          },
+          "description": "Missed evaluation means that group evaluation time takes longer than the configured evaluation interval. \nThis may result in missed alerting notifications or recording rules samples. Try increasing evaluation interval or concurrency for such groups. See https://docs.victoriametrics.com/vmalert/#groups\n\nIf rule expressions are taking longer than expected, please see https://docs.victoriametrics.com/troubleshooting/#slow-queries.\"",
+          "fieldConfig": {
+            "defaults": {
+              "color": {
+                "mode": "palette-classic"
+              },
+              "custom": {
+                "axisBorderShow": false,
+                "axisCenteredZero": false,
+                "axisColorMode": "text",
+                "axisLabel": "",
+                "axisPlacement": "auto",
+                "barAlignment": 0,
+                "drawStyle": "bars",
+                "fillOpacity": 10,
+                "gradientMode": "none",
+                "hideFrom": {
+                  "legend": false,
+                  "tooltip": false,
+                  "viz": false
+                },
+                "insertNulls": false,
+                "lineInterpolation": "linear",
+                "lineWidth": 1,
+                "pointSize": 5,
+                "scaleDistribution": {
+                  "type": "linear"
+                },
+                "showPoints": "never",
+                "spanNulls": false,
+                "stacking": {
+                  "group": "A",
+                  "mode": "none"
+                },
+                "thresholdsStyle": {
+                  "mode": "off"
+                }
+              },
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  {
+                    "color": "green",
+                    "value": null
+                  },
+                  {
+                    "color": "red",
+                    "value": 80
+                  }
+                ]
+              },
+              "unit": "short"
+            },
+            "overrides": []
+          },
+          "gridPos": {
+            "h": 7,
+            "w": 12,
+            "x": 12,
+            "y": 27
+          },
+          "id": 58,
+          "options": {
+            "legend": {
+              "calcs": [
+                "mean",
+                "lastNotNull",
+                "max"
+              ],
+              "displayMode": "table",
+              "placement": "bottom",
+              "showLegend": true
+            },
+            "tooltip": {
+              "mode": "multi",
+              "sort": "none"
+            }
+          },
+          "pluginVersion": "9.2.6",
+          "targets": [
+            {
+              "datasource": {
+                "type": "victoriametrics-datasource",
+                "uid": "$ds"
+              },
+              "editorMode": "code",
+              "exemplar": false,
+              "expr": "sum(increase(vmalert_iteration_missed_total{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval])) by(job, group) > 0",
+              "interval": "1m",
+              "legendFormat": "__auto",
+              "range": true,
+              "refId": "A"
+            }
+          ],
+          "title": "Missed evaluations ($instance)",
+          "type": "timeseries"
+        },
+        {
+          "datasource": {
+            "type": "victoriametrics-datasource",
+            "uid": "$ds"
+          },
+          "description": "Shows the number of restarts per job. The chart can be useful to identify periodic process restarts and correlate them with potential issues or anomalies. Normally, processes shouldn't restart unless restart was inited by user. The reason of restarts should be figured out by checking the logs of each specific service. ",
+          "fieldConfig": {
+            "defaults": {
+              "color": {
+                "mode": "palette-classic"
+              },
+              "custom": {
+                "axisBorderShow": false,
+                "axisCenteredZero": false,
+                "axisColorMode": "text",
+                "axisLabel": "",
+                "axisPlacement": "auto",
+                "axisSoftMin": 0,
+                "barAlignment": 0,
+                "drawStyle": "line",
+                "fillOpacity": 0,
+                "gradientMode": "none",
+                "hideFrom": {
+                  "legend": false,
+                  "tooltip": false,
+                  "viz": false
+                },
+                "insertNulls": false,
+                "lineInterpolation": "stepAfter",
+                "lineWidth": 1,
+                "pointSize": 5,
+                "scaleDistribution": {
+                  "type": "linear"
+                },
+                "showPoints": "never",
+                "spanNulls": false,
+                "stacking": {
+                  "group": "A",
+                  "mode": "none"
+                },
+                "thresholdsStyle": {
+                  "mode": "off"
+                }
+              },
+              "decimals": 0,
+              "links": [],
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  {
+                    "color": "green",
+                    "value": null
+                  },
+                  {
+                    "color": "red",
+                    "value": 80
+                  }
+                ]
+              },
+              "unit": "none"
+            },
+            "overrides": []
+          },
+          "gridPos": {
+            "h": 8,
+            "w": 12,
+            "x": 0,
+            "y": 34
+          },
+          "id": 63,
+          "options": {
+            "legend": {
+              "calcs": [
+                "lastNotNull"
+              ],
+              "displayMode": "table",
+              "placement": "bottom",
+              "showLegend": true,
+              "sortBy": "Last *",
+              "sortDesc": true
+            },
+            "tooltip": {
+              "mode": "multi",
+              "sort": "desc"
+            }
+          },
+          "pluginVersion": "9.1.0",
+          "targets": [
+            {
+              "datasource": {
+                "type": "victoriametrics-datasource",
+                "uid": "$ds"
+              },
+              "editorMode": "code",
+              "expr": "sum(changes(vm_app_start_timestamp{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval]) > 0) by(job)",
+              "format": "time_series",
+              "instant": false,
+              "legendFormat": "{{job}}",
+              "refId": "A"
+            }
+          ],
+          "title": "Restarts ($job)",
+          "type": "timeseries"
+        }
+      ],
+      "title": "Troubleshooting",
+      "type": "row"
+    },
     {
       "collapsed": true,
       "datasource": {
@@ -2298,7 +2421,7 @@
         "h": 1,
         "w": 24,
         "x": 0,
-        "y": 33
+        "y": 27
       },
       "id": 17,
       "panels": [
@@ -2364,7 +2487,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 44
+            "y": 52
           },
           "id": 14,
           "options": {
@@ -2466,7 +2589,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 44
+            "y": 52
           },
           "id": 13,
           "options": {
@@ -2568,7 +2691,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 52
+            "y": 60
           },
           "id": 20,
           "options": {
@@ -2671,7 +2794,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 52
+            "y": 60
           },
           "id": 32,
           "options": {
@@ -2770,7 +2893,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 60
+            "y": 68
           },
           "id": 26,
           "options": {
@@ -2831,7 +2954,7 @@
         "h": 1,
         "w": 24,
         "x": 0,
-        "y": 34
+        "y": 28
       },
       "id": 28,
       "panels": [
@@ -2897,7 +3020,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 59
+            "y": 67
           },
           "id": 31,
           "options": {
@@ -2999,7 +3122,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 59
+            "y": 67
           },
           "id": 33,
           "options": {
@@ -3100,7 +3223,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 67
+            "y": 75
           },
           "id": 30,
           "options": {
@@ -3157,7 +3280,7 @@
         "h": 1,
         "w": 24,
         "x": 0,
-        "y": 35
+        "y": 29
       },
       "id": 55,
       "panels": [
@@ -3221,7 +3344,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 25
+            "y": 33
           },
           "id": 52,
           "options": {
@@ -3313,7 +3436,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 25
+            "y": 33
           },
           "id": 53,
           "options": {
@@ -3410,7 +3533,7 @@
             "h": 8,
             "w": 12,
             "x": 0,
-            "y": 52
+            "y": 60
           },
           "id": 54,
           "options": {
@@ -3513,7 +3636,7 @@
             "h": 8,
             "w": 12,
             "x": 12,
-            "y": 52
+            "y": 60
           },
           "id": 60,
           "options": {
@@ -3566,8 +3689,8 @@
       {
         "current": {
           "selected": false,
-          "text": "VictoriaMetrics",
-          "value": "P4169E866C3094E38"
+          "text": "VictoriaMetrics - cluster",
+          "value": "PAF93674D0B4E9963"
         },
         "hide": 0,
         "includeAll": false,