VictoriaMetrics/app/vmstorage/main.go

638 lines
33 KiB
Go

package vmstorage
import (
"errors"
"flag"
"fmt"
"io"
"net/http"
"strings"
"sync"
"time"
"github.com/VictoriaMetrics/metrics"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/fasttime"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/mergeset"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/querytracer"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/syncwg"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/timeutil"
)
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")
snapshotAuthKey = flagutil.NewPassword("snapshotAuthKey", "authKey, which must be passed in query string to /snapshot* pages")
forceMergeAuthKey = flagutil.NewPassword("forceMergeAuthKey", "authKey, which must be passed in query string to /internal/force_merge pages")
forceFlushAuthKey = flagutil.NewPassword("forceFlushAuthKey", "authKey, which must be passed in query string to /internal/force_flush pages")
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")
snapshotCreateTimeout = flag.Duration("snapshotCreateTimeout", 0, "The timeout for creating new snapshot. If set, make sure that timeout is lower than backup period")
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")
// DataPath is a path to storage data.
DataPath = flag.String("storageDataPath", "victoria-metrics-data", "Path to storage data")
_ = flag.Duration("finalMergeDelay", 0, "Deprecated: this flag does nothing")
_ = flag.Int("bigMergeConcurrency", 0, "Deprecated: this flag does nothing")
_ = flag.Int("smallMergeConcurrency", 0, "Deprecated: this flag does nothing")
retentionTimezoneOffset = flag.Duration("retentionTimezoneOffset", 0, "The offset for performing indexdb rotation. "+
"If set to 0, then the indexdb rotation is performed at 4am UTC time per each -retentionPeriod. "+
"If set to 2h, then the indexdb rotation is performed at 4am EET time (the timezone with +2h offset)")
logNewSeries = flag.Bool("logNewSeries", false, "Whether to log new series. This option is for debug purposes only. It can lead to performance issues "+
"when big number of new series are ingested into VictoriaMetrics")
denyQueriesOutsideRetention = flag.Bool("denyQueriesOutsideRetention", false, "Whether to deny queries outside the configured -retentionPeriod. "+
"When set, then /api/v1/query_range would return '503 Service Unavailable' error for queries with 'from' value outside -retentionPeriod. "+
"This may be useful when multiple data sources with distinct retentions are hidden behind query-tee")
maxHourlySeries = flag.Int("storage.maxHourlySeries", 0, "The maximum number of unique series can be added to the storage during the last hour. "+
"Excess series are logged and dropped. This can be useful for limiting series cardinality. See https://docs.victoriametrics.com/#cardinality-limiter . "+
"See also -storage.maxDailySeries")
maxDailySeries = flag.Int("storage.maxDailySeries", 0, "The maximum number of unique series can be added to the storage during the last 24 hours. "+
"Excess series are logged and dropped. This can be useful for limiting series churn rate. See https://docs.victoriametrics.com/#cardinality-limiter . "+
"See also -storage.maxHourlySeries")
minFreeDiskSpaceBytes = flagutil.NewBytes("storage.minFreeDiskSpaceBytes", 10e6, "The minimum free disk space at -storageDataPath after which the storage stops accepting new data")
cacheSizeStorageTSID = flagutil.NewBytes("storage.cacheSizeStorageTSID", 0, "Overrides max size for storage/tsid cache. "+
"See https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#cache-tuning")
cacheSizeIndexDBIndexBlocks = flagutil.NewBytes("storage.cacheSizeIndexDBIndexBlocks", 0, "Overrides max size for indexdb/indexBlocks cache. "+
"See https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#cache-tuning")
cacheSizeIndexDBDataBlocks = flagutil.NewBytes("storage.cacheSizeIndexDBDataBlocks", 0, "Overrides max size for indexdb/dataBlocks cache. "+
"See https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#cache-tuning")
cacheSizeIndexDBTagFilters = flagutil.NewBytes("storage.cacheSizeIndexDBTagFilters", 0, "Overrides max size for indexdb/tagFiltersToMetricIDs cache. "+
"See https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#cache-tuning")
)
// CheckTimeRange returns true if the given tr is denied for querying.
func CheckTimeRange(tr storage.TimeRange) error {
if !*denyQueriesOutsideRetention {
return nil
}
minAllowedTimestamp := int64(fasttime.UnixTimestamp()*1000) - retentionPeriod.Milliseconds()
if tr.MinTimestamp > minAllowedTimestamp {
return nil
}
return &httpserver.ErrorWithStatusCode{
Err: fmt.Errorf("the given time range %s is outside the allowed -retentionPeriod=%s according to -denyQueriesOutsideRetention", &tr, retentionPeriod),
StatusCode: http.StatusServiceUnavailable,
}
}
// Init initializes vmstorage.
func Init(resetCacheIfNeeded func(mrs []storage.MetricRow)) {
if err := encoding.CheckPrecisionBits(uint8(*precisionBits)); err != nil {
logger.Fatalf("invalid `-precisionBits`: %s", err)
}
resetResponseCacheIfNeeded = resetCacheIfNeeded
storage.SetLogNewSeries(*logNewSeries)
storage.SetRetentionTimezoneOffset(*retentionTimezoneOffset)
storage.SetFreeDiskSpaceLimit(minFreeDiskSpaceBytes.N)
storage.SetTSIDCacheSize(cacheSizeStorageTSID.IntN())
storage.SetTagFiltersCacheSize(cacheSizeIndexDBTagFilters.IntN())
mergeset.SetIndexBlocksCacheSize(cacheSizeIndexDBIndexBlocks.IntN())
mergeset.SetDataBlocksCacheSize(cacheSizeIndexDBDataBlocks.IntN())
if retentionPeriod.Duration() < 24*time.Hour {
logger.Fatalf("-retentionPeriod cannot be smaller than a day; got %s", retentionPeriod)
}
logger.Infof("opening storage at %q with -retentionPeriod=%s", *DataPath, retentionPeriod)
startTime := time.Now()
WG = syncwg.WaitGroup{}
strg := storage.MustOpenStorage(*DataPath, retentionPeriod.Duration(), *maxHourlySeries, *maxDailySeries)
Storage = strg
initStaleSnapshotsRemover(strg)
var m storage.Metrics
strg.UpdateMetrics(&m)
tm := &m.TableMetrics
partsCount := tm.SmallPartsCount + tm.BigPartsCount
blocksCount := tm.SmallBlocksCount + tm.BigBlocksCount
rowsCount := tm.SmallRowsCount + tm.BigRowsCount
sizeBytes := tm.SmallSizeBytes + tm.BigSizeBytes
logger.Infof("successfully opened storage %q in %.3f seconds; partsCount: %d; blocksCount: %d; rowsCount: %d; sizeBytes: %d",
*DataPath, time.Since(startTime).Seconds(), partsCount, blocksCount, rowsCount, sizeBytes)
// register storage metrics
storageMetrics = metrics.NewSet()
storageMetrics.RegisterMetricsWriter(func(w io.Writer) {
writeStorageMetrics(w, strg)
})
metrics.RegisterSet(storageMetrics)
}
var storageMetrics *metrics.Set
// Storage is a storage.
//
// Every storage call must be wrapped into WG.Add(1) ... WG.Done()
// for proper graceful shutdown when Stop is called.
var Storage *storage.Storage
// WG must be incremented before Storage call.
//
// Use syncwg instead of sync, since Add is called from concurrent goroutines.
var WG syncwg.WaitGroup
// resetResponseCacheIfNeeded is a callback for automatic resetting of response cache if needed.
var resetResponseCacheIfNeeded func(mrs []storage.MetricRow)
// AddRows adds mrs to the storage.
//
// The caller should limit the number of concurrent calls to AddRows() in order to limit memory usage.
func AddRows(mrs []storage.MetricRow) error {
if Storage.IsReadOnly() {
return errReadOnly
}
resetResponseCacheIfNeeded(mrs)
WG.Add(1)
err := Storage.AddRows(mrs, uint8(*precisionBits))
WG.Done()
return err
}
var errReadOnly = errors.New("the storage is in read-only mode; check -storage.minFreeDiskSpaceBytes command-line flag value")
// RegisterMetricNames registers all the metrics from mrs in the storage.
func RegisterMetricNames(qt *querytracer.Tracer, mrs []storage.MetricRow) {
WG.Add(1)
Storage.RegisterMetricNames(qt, mrs)
WG.Done()
}
// DeleteSeries deletes series matching tfss.
//
// Returns the number of deleted series.
func DeleteSeries(qt *querytracer.Tracer, tfss []*storage.TagFilters) (int, error) {
WG.Add(1)
n, err := Storage.DeleteSeries(qt, tfss)
WG.Done()
return n, err
}
// SearchMetricNames returns metric names for the given tfss on the given tr.
func SearchMetricNames(qt *querytracer.Tracer, tfss []*storage.TagFilters, tr storage.TimeRange, maxMetrics int, deadline uint64) ([]string, error) {
WG.Add(1)
metricNames, err := Storage.SearchMetricNames(qt, tfss, tr, maxMetrics, deadline)
WG.Done()
return metricNames, err
}
// SearchLabelNamesWithFiltersOnTimeRange searches for tag keys matching the given tfss on tr.
func SearchLabelNamesWithFiltersOnTimeRange(qt *querytracer.Tracer, tfss []*storage.TagFilters, tr storage.TimeRange, maxTagKeys, maxMetrics int, deadline uint64) ([]string, error) {
WG.Add(1)
labelNames, err := Storage.SearchLabelNamesWithFiltersOnTimeRange(qt, tfss, tr, maxTagKeys, maxMetrics, deadline)
WG.Done()
return labelNames, err
}
// SearchLabelValuesWithFiltersOnTimeRange searches for label values for the given labelName, tfss and tr.
func SearchLabelValuesWithFiltersOnTimeRange(qt *querytracer.Tracer, labelName string, tfss []*storage.TagFilters,
tr storage.TimeRange, maxLabelValues, maxMetrics int, deadline uint64) ([]string, error) {
WG.Add(1)
labelValues, err := Storage.SearchLabelValuesWithFiltersOnTimeRange(qt, labelName, tfss, tr, maxLabelValues, maxMetrics, deadline)
WG.Done()
return labelValues, err
}
// SearchTagValueSuffixes returns all the tag value suffixes for the given tagKey and tagValuePrefix on the given tr.
//
// This allows implementing https://graphite-api.readthedocs.io/en/latest/api.html#metrics-find or similar APIs.
func SearchTagValueSuffixes(qt *querytracer.Tracer, tr storage.TimeRange, tagKey, tagValuePrefix string, delimiter byte, maxTagValueSuffixes int, deadline uint64) ([]string, error) {
WG.Add(1)
suffixes, err := Storage.SearchTagValueSuffixes(qt, tr, tagKey, tagValuePrefix, delimiter, maxTagValueSuffixes, deadline)
WG.Done()
return suffixes, err
}
// SearchGraphitePaths returns all the metric names matching the given Graphite query.
func SearchGraphitePaths(qt *querytracer.Tracer, tr storage.TimeRange, query []byte, maxPaths int, deadline uint64) ([]string, error) {
WG.Add(1)
paths, err := Storage.SearchGraphitePaths(qt, tr, query, maxPaths, deadline)
WG.Done()
return paths, err
}
// GetTSDBStatus returns TSDB status for given filters on the given date.
func GetTSDBStatus(qt *querytracer.Tracer, tfss []*storage.TagFilters, date uint64, focusLabel string, topN, maxMetrics int, deadline uint64) (*storage.TSDBStatus, error) {
WG.Add(1)
status, err := Storage.GetTSDBStatus(qt, tfss, date, focusLabel, topN, maxMetrics, deadline)
WG.Done()
return status, err
}
// GetSeriesCount returns the number of time series in the storage.
func GetSeriesCount(deadline uint64) (uint64, error) {
WG.Add(1)
n, err := Storage.GetSeriesCount(deadline)
WG.Done()
return n, err
}
// Stop stops the vmstorage
func Stop() {
// deregister storage metrics
metrics.UnregisterSet(storageMetrics)
storageMetrics = nil
logger.Infof("gracefully closing the storage at %s", *DataPath)
startTime := time.Now()
WG.WaitAndBlock()
stopStaleSnapshotsRemover()
Storage.MustClose()
logger.Infof("successfully closed the storage in %.3f seconds", time.Since(startTime).Seconds())
logger.Infof("the storage has been stopped")
}
// RequestHandler is a storage request handler.
func RequestHandler(w http.ResponseWriter, r *http.Request) bool {
path := r.URL.Path
if path == "/internal/force_merge" {
if !httpserver.CheckAuthFlag(w, r, forceMergeAuthKey.Get(), "forceMergeAuthKey") {
return true
}
// Run force merge in background
partitionNamePrefix := r.FormValue("partition_prefix")
go func() {
activeForceMerges.Inc()
defer activeForceMerges.Dec()
logger.Infof("forced merge for partition_prefix=%q has been started", partitionNamePrefix)
startTime := time.Now()
if err := Storage.ForceMergePartitions(partitionNamePrefix); err != nil {
logger.Errorf("error in forced merge for partition_prefix=%q: %s", partitionNamePrefix, err)
}
logger.Infof("forced merge for partition_prefix=%q has been successfully finished in %.3f seconds", partitionNamePrefix, time.Since(startTime).Seconds())
}()
return true
}
if path == "/internal/force_flush" {
if !httpserver.CheckAuthFlag(w, r, forceFlushAuthKey.Get(), "forceFlushAuthKey") {
return true
}
logger.Infof("flushing storage to make pending data available for reading")
Storage.DebugFlush()
return true
}
prometheusCompatibleResponse := false
if path == "/api/v1/admin/tsdb/snapshot" {
// Handle Prometheus API - https://prometheus.io/docs/prometheus/latest/querying/api/#snapshot .
prometheusCompatibleResponse = true
path = "/snapshot/create"
}
if !strings.HasPrefix(path, "/snapshot") {
return false
}
if !httpserver.CheckAuthFlag(w, r, snapshotAuthKey.Get(), "snapshotAuthKey") {
return true
}
path = path[len("/snapshot"):]
switch path {
case "/create":
snapshotsCreateTotal.Inc()
w.Header().Set("Content-Type", "application/json")
deadline := uint64(0)
if *snapshotCreateTimeout > 0 {
deadline = fasttime.UnixTimestamp() + uint64(snapshotCreateTimeout.Seconds())
}
snapshotPath, err := Storage.CreateSnapshot(deadline)
if err != nil {
err = fmt.Errorf("cannot create snapshot: %w", err)
jsonResponseError(w, err)
snapshotsCreateErrorsTotal.Inc()
return true
}
if prometheusCompatibleResponse {
fmt.Fprintf(w, `{"status":"success","data":{"name":%q}}`, snapshotPath)
} else {
fmt.Fprintf(w, `{"status":"ok","snapshot":%q}`, snapshotPath)
}
return true
case "/list":
snapshotsListTotal.Inc()
w.Header().Set("Content-Type", "application/json")
snapshots, err := Storage.ListSnapshots()
if err != nil {
err = fmt.Errorf("cannot list snapshots: %w", err)
jsonResponseError(w, err)
snapshotsListErrorsTotal.Inc()
return true
}
fmt.Fprintf(w, `{"status":"ok","snapshots":[`)
if len(snapshots) > 0 {
for _, snapshot := range snapshots[:len(snapshots)-1] {
fmt.Fprintf(w, "\n%q,", snapshot)
}
fmt.Fprintf(w, "\n%q\n", snapshots[len(snapshots)-1])
}
fmt.Fprintf(w, `]}`)
return true
case "/delete":
snapshotsDeleteTotal.Inc()
w.Header().Set("Content-Type", "application/json")
snapshotName := r.FormValue("snapshot")
snapshots, err := Storage.ListSnapshots()
if err != nil {
err = fmt.Errorf("cannot list snapshots: %w", err)
jsonResponseError(w, err)
snapshotsDeleteErrorsTotal.Inc()
return true
}
for _, snName := range snapshots {
if snName == snapshotName {
if err := Storage.DeleteSnapshot(snName); err != nil {
err = fmt.Errorf("cannot delete snapshot %q: %w", snName, err)
jsonResponseError(w, err)
snapshotsDeleteErrorsTotal.Inc()
return true
}
fmt.Fprintf(w, `{"status":"ok"}`)
return true
}
}
err = fmt.Errorf("cannot find snapshot %q", snapshotName)
jsonResponseError(w, err)
return true
case "/delete_all":
snapshotsDeleteAllTotal.Inc()
w.Header().Set("Content-Type", "application/json")
snapshots, err := Storage.ListSnapshots()
if err != nil {
err = fmt.Errorf("cannot list snapshots: %w", err)
jsonResponseError(w, err)
snapshotsDeleteAllErrorsTotal.Inc()
return true
}
for _, snapshotName := range snapshots {
if err := Storage.DeleteSnapshot(snapshotName); err != nil {
err = fmt.Errorf("cannot delete snapshot %q: %w", snapshotName, err)
jsonResponseError(w, err)
snapshotsDeleteAllErrorsTotal.Inc()
return true
}
}
fmt.Fprintf(w, `{"status":"ok"}`)
return true
default:
return false
}
}
func initStaleSnapshotsRemover(strg *storage.Storage) {
staleSnapshotsRemoverCh = make(chan struct{})
if snapshotsMaxAge.Duration() <= 0 {
return
}
snapshotsMaxAgeDur := snapshotsMaxAge.Duration()
staleSnapshotsRemoverWG.Add(1)
go func() {
defer staleSnapshotsRemoverWG.Done()
d := timeutil.AddJitterToDuration(time.Second * 11)
t := time.NewTicker(d)
defer t.Stop()
for {
select {
case <-staleSnapshotsRemoverCh:
return
case <-t.C:
}
if err := strg.DeleteStaleSnapshots(snapshotsMaxAgeDur); err != nil {
// Use logger.Errorf instead of logger.Fatalf in the hope the error is temporary.
logger.Errorf("cannot delete stale snapshots: %s", err)
}
}
}()
}
func stopStaleSnapshotsRemover() {
close(staleSnapshotsRemoverCh)
staleSnapshotsRemoverWG.Wait()
}
var (
staleSnapshotsRemoverCh chan struct{}
staleSnapshotsRemoverWG sync.WaitGroup
)
var (
activeForceMerges = metrics.NewCounter("vm_active_force_merges")
snapshotsCreateTotal = metrics.NewCounter(`vm_http_requests_total{path="/snapshot/create"}`)
snapshotsCreateErrorsTotal = metrics.NewCounter(`vm_http_request_errors_total{path="/snapshot/create"}`)
snapshotsListTotal = metrics.NewCounter(`vm_http_requests_total{path="/snapshot/list"}`)
snapshotsListErrorsTotal = metrics.NewCounter(`vm_http_request_errors_total{path="/snapshot/list"}`)
snapshotsDeleteTotal = metrics.NewCounter(`vm_http_requests_total{path="/snapshot/delete"}`)
snapshotsDeleteErrorsTotal = metrics.NewCounter(`vm_http_request_errors_total{path="/snapshot/delete"}`)
snapshotsDeleteAllTotal = metrics.NewCounter(`vm_http_requests_total{path="/snapshot/delete_all"}`)
snapshotsDeleteAllErrorsTotal = metrics.NewCounter(`vm_http_request_errors_total{path="/snapshot/delete_all"}`)
)
func writeStorageMetrics(w io.Writer, strg *storage.Storage) {
var m storage.Metrics
strg.UpdateMetrics(&m)
tm := &m.TableMetrics
idbm := &m.IndexDBMetrics
metrics.WriteGaugeUint64(w, fmt.Sprintf(`vm_free_disk_space_bytes{path=%q}`, *DataPath), fs.MustGetFreeSpace(*DataPath))
metrics.WriteGaugeUint64(w, fmt.Sprintf(`vm_free_disk_space_limit_bytes{path=%q}`, *DataPath), uint64(minFreeDiskSpaceBytes.N))
isReadOnly := 0
if strg.IsReadOnly() {
isReadOnly = 1
}
metrics.WriteGaugeUint64(w, fmt.Sprintf(`vm_storage_is_read_only{path=%q}`, *DataPath), uint64(isReadOnly))
metrics.WriteGaugeUint64(w, `vm_active_merges{type="storage/inmemory"}`, tm.ActiveInmemoryMerges)
metrics.WriteGaugeUint64(w, `vm_active_merges{type="storage/small"}`, tm.ActiveSmallMerges)
metrics.WriteGaugeUint64(w, `vm_active_merges{type="storage/big"}`, tm.ActiveBigMerges)
metrics.WriteGaugeUint64(w, `vm_active_merges{type="indexdb/inmemory"}`, idbm.ActiveInmemoryMerges)
metrics.WriteGaugeUint64(w, `vm_active_merges{type="indexdb/file"}`, idbm.ActiveFileMerges)
metrics.WriteCounterUint64(w, `vm_merges_total{type="storage/inmemory"}`, tm.InmemoryMergesCount)
metrics.WriteCounterUint64(w, `vm_merges_total{type="storage/small"}`, tm.SmallMergesCount)
metrics.WriteCounterUint64(w, `vm_merges_total{type="storage/big"}`, tm.BigMergesCount)
metrics.WriteCounterUint64(w, `vm_merges_total{type="indexdb/inmemory"}`, idbm.InmemoryMergesCount)
metrics.WriteCounterUint64(w, `vm_merges_total{type="indexdb/file"}`, idbm.FileMergesCount)
metrics.WriteCounterUint64(w, `vm_rows_merged_total{type="storage/inmemory"}`, tm.InmemoryRowsMerged)
metrics.WriteCounterUint64(w, `vm_rows_merged_total{type="storage/small"}`, tm.SmallRowsMerged)
metrics.WriteCounterUint64(w, `vm_rows_merged_total{type="storage/big"}`, tm.BigRowsMerged)
metrics.WriteCounterUint64(w, `vm_rows_merged_total{type="indexdb/inmemory"}`, idbm.InmemoryItemsMerged)
metrics.WriteCounterUint64(w, `vm_rows_merged_total{type="indexdb/file"}`, idbm.FileItemsMerged)
metrics.WriteCounterUint64(w, `vm_rows_deleted_total{type="storage/inmemory"}`, tm.InmemoryRowsDeleted)
metrics.WriteCounterUint64(w, `vm_rows_deleted_total{type="storage/small"}`, tm.SmallRowsDeleted)
metrics.WriteCounterUint64(w, `vm_rows_deleted_total{type="storage/big"}`, tm.BigRowsDeleted)
metrics.WriteGaugeUint64(w, `vm_part_references{type="storage/inmemory"}`, tm.InmemoryPartsRefCount)
metrics.WriteGaugeUint64(w, `vm_part_references{type="storage/small"}`, tm.SmallPartsRefCount)
metrics.WriteGaugeUint64(w, `vm_part_references{type="storage/big"}`, tm.BigPartsRefCount)
metrics.WriteGaugeUint64(w, `vm_partition_references{type="storage"}`, tm.PartitionsRefCount)
metrics.WriteGaugeUint64(w, `vm_object_references{type="indexdb"}`, idbm.IndexDBRefCount)
metrics.WriteGaugeUint64(w, `vm_part_references{type="indexdb"}`, idbm.PartsRefCount)
metrics.WriteCounterUint64(w, `vm_missing_tsids_for_metric_id_total`, idbm.MissingTSIDsForMetricID)
metrics.WriteCounterUint64(w, `vm_index_blocks_with_metric_ids_processed_total`, idbm.IndexBlocksWithMetricIDsProcessed)
metrics.WriteCounterUint64(w, `vm_index_blocks_with_metric_ids_incorrect_order_total`, idbm.IndexBlocksWithMetricIDsIncorrectOrder)
metrics.WriteGaugeUint64(w, `vm_composite_index_min_timestamp`, idbm.MinTimestampForCompositeIndex/1e3)
metrics.WriteCounterUint64(w, `vm_composite_filter_success_conversions_total`, idbm.CompositeFilterSuccessConversions)
metrics.WriteCounterUint64(w, `vm_composite_filter_missing_conversions_total`, idbm.CompositeFilterMissingConversions)
// vm_assisted_merges_total name is used for backwards compatibility.
metrics.WriteCounterUint64(w, `vm_assisted_merges_total{type="indexdb/inmemory"}`, idbm.InmemoryPartsLimitReachedCount)
metrics.WriteCounterUint64(w, `vm_indexdb_items_added_total`, idbm.ItemsAdded)
metrics.WriteCounterUint64(w, `vm_indexdb_items_added_size_bytes_total`, idbm.ItemsAddedSizeBytes)
metrics.WriteGaugeUint64(w, `vm_pending_rows{type="storage"}`, tm.PendingRows)
metrics.WriteGaugeUint64(w, `vm_pending_rows{type="indexdb"}`, idbm.PendingItems)
metrics.WriteGaugeUint64(w, `vm_parts{type="storage/inmemory"}`, tm.InmemoryPartsCount)
metrics.WriteGaugeUint64(w, `vm_parts{type="storage/small"}`, tm.SmallPartsCount)
metrics.WriteGaugeUint64(w, `vm_parts{type="storage/big"}`, tm.BigPartsCount)
metrics.WriteGaugeUint64(w, `vm_parts{type="indexdb/inmemory"}`, idbm.InmemoryPartsCount)
metrics.WriteGaugeUint64(w, `vm_parts{type="indexdb/file"}`, idbm.FilePartsCount)
metrics.WriteGaugeUint64(w, `vm_last_partition_parts{type="storage/inmemory"}`, tm.LastPartition.InmemoryPartsCount)
metrics.WriteGaugeUint64(w, `vm_last_partition_parts{type="storage/small"}`, tm.LastPartition.SmallPartsCount)
metrics.WriteGaugeUint64(w, `vm_last_partition_parts{type="storage/big"}`, tm.LastPartition.BigPartsCount)
metrics.WriteGaugeUint64(w, `vm_blocks{type="storage/inmemory"}`, tm.InmemoryBlocksCount)
metrics.WriteGaugeUint64(w, `vm_blocks{type="storage/small"}`, tm.SmallBlocksCount)
metrics.WriteGaugeUint64(w, `vm_blocks{type="storage/big"}`, tm.BigBlocksCount)
metrics.WriteGaugeUint64(w, `vm_blocks{type="indexdb/inmemory"}`, idbm.InmemoryBlocksCount)
metrics.WriteGaugeUint64(w, `vm_blocks{type="indexdb/file"}`, idbm.FileBlocksCount)
metrics.WriteGaugeUint64(w, `vm_data_size_bytes{type="storage/inmemory"}`, tm.InmemorySizeBytes)
metrics.WriteGaugeUint64(w, `vm_data_size_bytes{type="storage/small"}`, tm.SmallSizeBytes)
metrics.WriteGaugeUint64(w, `vm_data_size_bytes{type="storage/big"}`, tm.BigSizeBytes)
metrics.WriteGaugeUint64(w, `vm_data_size_bytes{type="indexdb/inmemory"}`, idbm.InmemorySizeBytes)
metrics.WriteGaugeUint64(w, `vm_data_size_bytes{type="indexdb/file"}`, idbm.FileSizeBytes)
metrics.WriteCounterUint64(w, `vm_rows_added_to_storage_total`, m.RowsAddedTotal)
metrics.WriteCounterUint64(w, `vm_deduplicated_samples_total{type="merge"}`, m.DedupsDuringMerge)
metrics.WriteCounterUint64(w, `vm_rows_ignored_total{reason="big_timestamp"}`, m.TooBigTimestampRows)
metrics.WriteCounterUint64(w, `vm_rows_ignored_total{reason="small_timestamp"}`, m.TooSmallTimestampRows)
metrics.WriteCounterUint64(w, `vm_timeseries_repopulated_total`, m.TimeseriesRepopulated)
metrics.WriteCounterUint64(w, `vm_timeseries_precreated_total`, m.TimeseriesPreCreated)
metrics.WriteCounterUint64(w, `vm_new_timeseries_created_total`, m.NewTimeseriesCreated)
metrics.WriteCounterUint64(w, `vm_slow_row_inserts_total`, m.SlowRowInserts)
metrics.WriteCounterUint64(w, `vm_slow_per_day_index_inserts_total`, m.SlowPerDayIndexInserts)
metrics.WriteCounterUint64(w, `vm_slow_metric_name_loads_total`, m.SlowMetricNameLoads)
if *maxHourlySeries > 0 {
metrics.WriteGaugeUint64(w, `vm_hourly_series_limit_current_series`, m.HourlySeriesLimitCurrentSeries)
metrics.WriteGaugeUint64(w, `vm_hourly_series_limit_max_series`, m.HourlySeriesLimitMaxSeries)
metrics.WriteCounterUint64(w, `vm_hourly_series_limit_rows_dropped_total`, m.HourlySeriesLimitRowsDropped)
}
if *maxDailySeries > 0 {
metrics.WriteGaugeUint64(w, `vm_daily_series_limit_current_series`, m.DailySeriesLimitCurrentSeries)
metrics.WriteGaugeUint64(w, `vm_daily_series_limit_max_series`, m.DailySeriesLimitMaxSeries)
metrics.WriteCounterUint64(w, `vm_daily_series_limit_rows_dropped_total`, m.DailySeriesLimitRowsDropped)
}
metrics.WriteCounterUint64(w, `vm_timestamps_blocks_merged_total`, m.TimestampsBlocksMerged)
metrics.WriteCounterUint64(w, `vm_timestamps_bytes_saved_total`, m.TimestampsBytesSaved)
metrics.WriteGaugeUint64(w, `vm_rows{type="storage/inmemory"}`, tm.InmemoryRowsCount)
metrics.WriteGaugeUint64(w, `vm_rows{type="storage/small"}`, tm.SmallRowsCount)
metrics.WriteGaugeUint64(w, `vm_rows{type="storage/big"}`, tm.BigRowsCount)
metrics.WriteGaugeUint64(w, `vm_rows{type="indexdb/inmemory"}`, idbm.InmemoryItemsCount)
metrics.WriteGaugeUint64(w, `vm_rows{type="indexdb/file"}`, idbm.FileItemsCount)
metrics.WriteCounterUint64(w, `vm_date_range_search_calls_total`, idbm.DateRangeSearchCalls)
metrics.WriteCounterUint64(w, `vm_date_range_hits_total`, idbm.DateRangeSearchHits)
metrics.WriteCounterUint64(w, `vm_global_search_calls_total`, idbm.GlobalSearchCalls)
metrics.WriteCounterUint64(w, `vm_missing_metric_names_for_metric_id_total`, idbm.MissingMetricNamesForMetricID)
metrics.WriteCounterUint64(w, `vm_date_metric_id_cache_syncs_total`, m.DateMetricIDCacheSyncsCount)
metrics.WriteCounterUint64(w, `vm_date_metric_id_cache_resets_total`, m.DateMetricIDCacheResetsCount)
metrics.WriteGaugeUint64(w, `vm_cache_entries{type="storage/tsid"}`, m.TSIDCacheSize)
metrics.WriteGaugeUint64(w, `vm_cache_entries{type="storage/metricIDs"}`, m.MetricIDCacheSize)
metrics.WriteGaugeUint64(w, `vm_cache_entries{type="storage/metricName"}`, m.MetricNameCacheSize)
metrics.WriteGaugeUint64(w, `vm_cache_entries{type="storage/date_metricID"}`, m.DateMetricIDCacheSize)
metrics.WriteGaugeUint64(w, `vm_cache_entries{type="storage/hour_metric_ids"}`, m.HourMetricIDCacheSize)
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/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()))
metrics.WriteGaugeUint64(w, `vm_cache_entries{type="storage/regexpPrefixes"}`, uint64(storage.RegexpPrefixesCacheSize()))
metrics.WriteGaugeUint64(w, `vm_cache_entries{type="storage/prefetchedMetricIDs"}`, m.PrefetchedMetricIDsSize)
metrics.WriteGaugeUint64(w, `vm_cache_size_bytes{type="storage/tsid"}`, m.TSIDCacheSizeBytes)
metrics.WriteGaugeUint64(w, `vm_cache_size_bytes{type="storage/metricIDs"}`, m.MetricIDCacheSizeBytes)
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/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)
metrics.WriteGaugeUint64(w, `vm_cache_size_bytes{type="storage/next_day_metric_ids"}`, m.NextDayMetricIDCacheSizeBytes)
metrics.WriteGaugeUint64(w, `vm_cache_size_bytes{type="indexdb/tagFiltersToMetricIDs"}`, idbm.TagFiltersToMetricIDsCacheSizeBytes)
metrics.WriteGaugeUint64(w, `vm_cache_size_bytes{type="storage/regexps"}`, uint64(storage.RegexpCacheSizeBytes()))
metrics.WriteGaugeUint64(w, `vm_cache_size_bytes{type="storage/regexpPrefixes"}`, uint64(storage.RegexpPrefixesCacheSizeBytes()))
metrics.WriteGaugeUint64(w, `vm_cache_size_bytes{type="storage/prefetchedMetricIDs"}`, m.PrefetchedMetricIDsSizeBytes)
metrics.WriteGaugeUint64(w, `vm_cache_size_max_bytes{type="storage/tsid"}`, m.TSIDCacheSizeMaxBytes)
metrics.WriteGaugeUint64(w, `vm_cache_size_max_bytes{type="storage/metricIDs"}`, m.MetricIDCacheSizeMaxBytes)
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/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()))
metrics.WriteGaugeUint64(w, `vm_cache_size_max_bytes{type="storage/regexpPrefixes"}`, uint64(storage.RegexpPrefixesCacheMaxSizeBytes()))
metrics.WriteCounterUint64(w, `vm_cache_requests_total{type="storage/tsid"}`, m.TSIDCacheRequests)
metrics.WriteCounterUint64(w, `vm_cache_requests_total{type="storage/metricIDs"}`, m.MetricIDCacheRequests)
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/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())
metrics.WriteCounterUint64(w, `vm_cache_requests_total{type="storage/regexpPrefixes"}`, storage.RegexpPrefixesCacheRequests())
metrics.WriteCounterUint64(w, `vm_cache_misses_total{type="storage/tsid"}`, m.TSIDCacheMisses)
metrics.WriteCounterUint64(w, `vm_cache_misses_total{type="storage/metricIDs"}`, m.MetricIDCacheMisses)
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/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())
metrics.WriteCounterUint64(w, `vm_cache_misses_total{type="storage/regexpPrefixes"}`, storage.RegexpPrefixesCacheMisses())
metrics.WriteCounterUint64(w, `vm_deleted_metrics_total{type="indexdb"}`, idbm.DeletedMetricsCount)
metrics.WriteCounterUint64(w, `vm_cache_collisions_total{type="storage/tsid"}`, m.TSIDCacheCollisions)
metrics.WriteCounterUint64(w, `vm_cache_collisions_total{type="storage/metricName"}`, m.MetricNameCacheCollisions)
metrics.WriteGaugeUint64(w, `vm_next_retention_seconds`, m.NextRetentionSeconds)
}
func jsonResponseError(w http.ResponseWriter, err error) {
logger.Errorf("%s", err)
w.WriteHeader(http.StatusInternalServerError)
fmt.Fprintf(w, `{"status":"error","msg":%q}`, err)
}