mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
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d134a310f3
Describe Your Changes
When I use usePromCompatibleNaming with vmagent to process data that
needs to be formatted from different sources such as InfluxDB, I find
that it doesn’t work
However, it works in vminsert. I found that vminsert uses the
HasRelabeling method to determine whether to relabel.
```go
func HasRelabeling() bool {
pcs := pcsGlobal.Load()
return pcs.Len() > 0 || *usePromCompatibleNaming
}
```
in vmagent, the decision to relabel is determined only by
pcsGlobal.Len() > 0. However, in the applyRelabeling method, the
usePromCompatibleNaming logic is also used to determine whether to
relabel in the error handling.
```go
func (rctx *relabelCtx) applyRelabeling(tss []prompbmarshal.TimeSeries, pcs *promrelabel.ParsedConfigs) []prompbmarshal.TimeSeries {
if pcs.Len() == 0 && !*usePromCompatibleNaming {
// Nothing to change.
return tss
}
```
So I think that the logic for determining whether to relabel in vmagent
is not as expected.
Checklist
The following checks are mandatory:
[✅]My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
---------
Co-authored-by: Roman Khavronenko <hagen1778@gmail.com>
1022 lines
37 KiB
Go
1022 lines
37 KiB
Go
package remotewrite
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import (
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"flag"
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"fmt"
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"net/http"
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"net/url"
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"path/filepath"
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"slices"
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"strconv"
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"sync"
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"sync/atomic"
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"time"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/bloomfilter"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/cgroup"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/fasttime"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/memory"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/persistentqueue"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/procutil"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutils"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/ratelimiter"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/streamaggr"
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"github.com/VictoriaMetrics/metrics"
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"github.com/cespare/xxhash/v2"
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)
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var (
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remoteWriteURLs = flagutil.NewArrayString("remoteWrite.url", "Remote storage URL to write data to. It must support either VictoriaMetrics remote write protocol "+
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"or Prometheus remote_write protocol. Example url: http://<victoriametrics-host>:8428/api/v1/write . "+
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"Pass multiple -remoteWrite.url options in order to replicate the collected data to multiple remote storage systems. "+
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"The data can be sharded among the configured remote storage systems if -remoteWrite.shardByURL flag is set")
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enableMultitenantHandlers = flag.Bool("enableMultitenantHandlers", false, "Whether to process incoming data via multitenant insert handlers according to "+
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"https://docs.victoriametrics.com/cluster-victoriametrics/#url-format . By default incoming data is processed via single-node insert handlers "+
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"according to https://docs.victoriametrics.com/#how-to-import-time-series-data ."+
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"See https://docs.victoriametrics.com/vmagent/#multitenancy for details")
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shardByURL = flag.Bool("remoteWrite.shardByURL", false, "Whether to shard outgoing series across all the remote storage systems enumerated via -remoteWrite.url . "+
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"By default the data is replicated across all the -remoteWrite.url . See https://docs.victoriametrics.com/vmagent/#sharding-among-remote-storages . "+
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"See also -remoteWrite.shardByURLReplicas")
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shardByURLReplicas = flag.Int("remoteWrite.shardByURLReplicas", 1, "How many copies of data to make among remote storage systems enumerated via -remoteWrite.url "+
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"when -remoteWrite.shardByURL is set. See https://docs.victoriametrics.com/vmagent/#sharding-among-remote-storages")
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shardByURLLabels = flagutil.NewArrayString("remoteWrite.shardByURL.labels", "Optional list of labels, which must be used for sharding outgoing samples "+
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"among remote storage systems if -remoteWrite.shardByURL command-line flag is set. By default all the labels are used for sharding in order to gain "+
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"even distribution of series over the specified -remoteWrite.url systems. See also -remoteWrite.shardByURL.ignoreLabels")
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shardByURLIgnoreLabels = flagutil.NewArrayString("remoteWrite.shardByURL.ignoreLabels", "Optional list of labels, which must be ignored when sharding outgoing samples "+
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"among remote storage systems if -remoteWrite.shardByURL command-line flag is set. By default all the labels are used for sharding in order to gain "+
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"even distribution of series over the specified -remoteWrite.url systems. See also -remoteWrite.shardByURL.labels")
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tmpDataPath = flag.String("remoteWrite.tmpDataPath", "vmagent-remotewrite-data", "Path to directory for storing pending data, which isn't sent to the configured -remoteWrite.url . "+
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"See also -remoteWrite.maxDiskUsagePerURL and -remoteWrite.disableOnDiskQueue")
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keepDanglingQueues = flag.Bool("remoteWrite.keepDanglingQueues", false, "Keep persistent queues contents at -remoteWrite.tmpDataPath in case there are no matching -remoteWrite.url. "+
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"Useful when -remoteWrite.url is changed temporarily and persistent queue files will be needed later on.")
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queues = flag.Int("remoteWrite.queues", cgroup.AvailableCPUs()*2, "The number of concurrent queues to each -remoteWrite.url. Set more queues if default number of queues "+
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"isn't enough for sending high volume of collected data to remote storage. "+
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"Default value depends on the number of available CPU cores. It should work fine in most cases since it minimizes resource usage")
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showRemoteWriteURL = flag.Bool("remoteWrite.showURL", false, "Whether to show -remoteWrite.url in the exported metrics. "+
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"It is hidden by default, since it can contain sensitive info such as auth key")
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maxPendingBytesPerURL = flagutil.NewArrayBytes("remoteWrite.maxDiskUsagePerURL", 0, "The maximum file-based buffer size in bytes at -remoteWrite.tmpDataPath "+
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"for each -remoteWrite.url. When buffer size reaches the configured maximum, then old data is dropped when adding new data to the buffer. "+
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"Buffered data is stored in ~500MB chunks. It is recommended to set the value for this flag to a multiple of the block size 500MB. "+
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"Disk usage is unlimited if the value is set to 0")
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significantFigures = flagutil.NewArrayInt("remoteWrite.significantFigures", 0, "The number of significant figures to leave in metric values before writing them "+
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"to remote storage. See https://en.wikipedia.org/wiki/Significant_figures . Zero value saves all the significant figures. "+
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"This option may be used for improving data compression for the stored metrics. See also -remoteWrite.roundDigits")
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roundDigits = flagutil.NewArrayInt("remoteWrite.roundDigits", 100, "Round metric values to this number of decimal digits after the point before "+
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"writing them to remote storage. "+
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"Examples: -remoteWrite.roundDigits=2 would round 1.236 to 1.24, while -remoteWrite.roundDigits=-1 would round 126.78 to 130. "+
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"By default, digits rounding is disabled. Set it to 100 for disabling it for a particular remote storage. "+
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"This option may be used for improving data compression for the stored metrics")
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sortLabels = flag.Bool("sortLabels", false, `Whether to sort labels for incoming samples before writing them to all the configured remote storage systems. `+
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`This may be needed for reducing memory usage at remote storage when the order of labels in incoming samples is random. `+
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`For example, if m{k1="v1",k2="v2"} may be sent as m{k2="v2",k1="v1"}`+
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`Enabled sorting for labels can slow down ingestion performance a bit`)
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maxHourlySeries = flag.Int("remoteWrite.maxHourlySeries", 0, "The maximum number of unique series vmagent can send to remote storage systems during the last hour. "+
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"Excess series are logged and dropped. This can be useful for limiting series cardinality. See https://docs.victoriametrics.com/vmagent/#cardinality-limiter")
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maxDailySeries = flag.Int("remoteWrite.maxDailySeries", 0, "The maximum number of unique series vmagent can send to remote storage systems during the last 24 hours. "+
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"Excess series are logged and dropped. This can be useful for limiting series churn rate. See https://docs.victoriametrics.com/vmagent/#cardinality-limiter")
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maxIngestionRate = flag.Int("maxIngestionRate", 0, "The maximum number of samples vmagent can receive per second. Data ingestion is paused when the limit is exceeded. "+
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"By default there are no limits on samples ingestion rate. See also -remoteWrite.rateLimit")
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disableOnDiskQueue = flagutil.NewArrayBool("remoteWrite.disableOnDiskQueue", "Whether to disable storing pending data to -remoteWrite.tmpDataPath "+
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"when the remote storage system at the corresponding -remoteWrite.url cannot keep up with the data ingestion rate. "+
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"See https://docs.victoriametrics.com/vmagent#disabling-on-disk-persistence . See also -remoteWrite.dropSamplesOnOverload")
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dropSamplesOnOverload = flag.Bool("remoteWrite.dropSamplesOnOverload", false, "Whether to drop samples when -remoteWrite.disableOnDiskQueue is set and if the samples "+
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"cannot be pushed into the configured -remoteWrite.url systems in a timely manner. See https://docs.victoriametrics.com/vmagent#disabling-on-disk-persistence")
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)
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var (
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// rwctxsGlobal contains statically populated entries when -remoteWrite.url is specified.
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rwctxsGlobal []*remoteWriteCtx
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// Data without tenant id is written to defaultAuthToken if -enableMultitenantHandlers is specified.
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defaultAuthToken = &auth.Token{}
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// ErrQueueFullHTTPRetry must be returned when TryPush() returns false.
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ErrQueueFullHTTPRetry = &httpserver.ErrorWithStatusCode{
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Err: fmt.Errorf("remote storage systems cannot keep up with the data ingestion rate; retry the request later " +
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"or remove -remoteWrite.disableOnDiskQueue from vmagent command-line flags, so it could save pending data to -remoteWrite.tmpDataPath; " +
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"see https://docs.victoriametrics.com/vmagent/#disabling-on-disk-persistence"),
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StatusCode: http.StatusTooManyRequests,
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}
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// disableOnDiskQueueAny is set to true if at least a single -remoteWrite.url is configured with -remoteWrite.disableOnDiskQueue
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disableOnDiskQueueAny bool
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// dropSamplesOnFailureGlobal is set to true if -remoteWrite.dropSamplesOnOverload is set or if multiple -remoteWrite.disableOnDiskQueue options are set.
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dropSamplesOnFailureGlobal bool
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)
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// MultitenancyEnabled returns true if -enableMultitenantHandlers is specified.
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func MultitenancyEnabled() bool {
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return *enableMultitenantHandlers
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}
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// Contains the current relabelConfigs.
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var allRelabelConfigs atomic.Pointer[relabelConfigs]
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// Contains the current global stream aggregators.
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var sasGlobal atomic.Pointer[streamaggr.Aggregators]
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// Contains the current global deduplicator.
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var deduplicatorGlobal *streamaggr.Deduplicator
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// maxQueues limits the maximum value for `-remoteWrite.queues`. There is no sense in setting too high value,
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// since it may lead to high memory usage due to big number of buffers.
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var maxQueues = cgroup.AvailableCPUs() * 16
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const persistentQueueDirname = "persistent-queue"
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// InitSecretFlags must be called after flag.Parse and before any logging.
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func InitSecretFlags() {
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if !*showRemoteWriteURL {
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// remoteWrite.url can contain authentication codes, so hide it at `/metrics` output.
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flagutil.RegisterSecretFlag("remoteWrite.url")
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}
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}
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var (
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shardByURLLabelsMap map[string]struct{}
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shardByURLIgnoreLabelsMap map[string]struct{}
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)
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// Init initializes remotewrite.
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//
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// It must be called after flag.Parse().
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//
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// Stop must be called for graceful shutdown.
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func Init() {
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if len(*remoteWriteURLs) == 0 {
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logger.Fatalf("at least one `-remoteWrite.url` command-line flag must be set")
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}
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if *maxHourlySeries > 0 {
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hourlySeriesLimiter = bloomfilter.NewLimiter(*maxHourlySeries, time.Hour)
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_ = metrics.NewGauge(`vmagent_hourly_series_limit_max_series`, func() float64 {
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return float64(hourlySeriesLimiter.MaxItems())
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})
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_ = metrics.NewGauge(`vmagent_hourly_series_limit_current_series`, func() float64 {
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return float64(hourlySeriesLimiter.CurrentItems())
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})
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}
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if *maxDailySeries > 0 {
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dailySeriesLimiter = bloomfilter.NewLimiter(*maxDailySeries, 24*time.Hour)
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_ = metrics.NewGauge(`vmagent_daily_series_limit_max_series`, func() float64 {
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return float64(dailySeriesLimiter.MaxItems())
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})
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_ = metrics.NewGauge(`vmagent_daily_series_limit_current_series`, func() float64 {
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return float64(dailySeriesLimiter.CurrentItems())
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})
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}
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if *queues > maxQueues {
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*queues = maxQueues
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}
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if *queues <= 0 {
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*queues = 1
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}
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if len(*shardByURLLabels) > 0 && len(*shardByURLIgnoreLabels) > 0 {
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logger.Fatalf("-remoteWrite.shardByURL.labels and -remoteWrite.shardByURL.ignoreLabels cannot be set simultaneously; " +
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"see https://docs.victoriametrics.com/vmagent/#sharding-among-remote-storages")
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}
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shardByURLLabelsMap = newMapFromStrings(*shardByURLLabels)
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shardByURLIgnoreLabelsMap = newMapFromStrings(*shardByURLIgnoreLabels)
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initLabelsGlobal()
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// Register SIGHUP handler for config reload before loadRelabelConfigs.
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// This guarantees that the config will be re-read if the signal arrives just after loadRelabelConfig.
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// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1240
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sighupCh := procutil.NewSighupChan()
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rcs, err := loadRelabelConfigs()
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if err != nil {
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logger.Fatalf("cannot load relabel configs: %s", err)
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}
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allRelabelConfigs.Store(rcs)
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relabelConfigSuccess.Set(1)
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relabelConfigTimestamp.Set(fasttime.UnixTimestamp())
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initStreamAggrConfigGlobal()
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rwctxsGlobal = newRemoteWriteCtxs(nil, *remoteWriteURLs)
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disableOnDiskQueues := []bool(*disableOnDiskQueue)
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disableOnDiskQueueAny = slices.Contains(disableOnDiskQueues, true)
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// Samples must be dropped if multiple -remoteWrite.disableOnDiskQueue options are configured and at least a single is set to true.
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// In this case it is impossible to prevent from sending many duplicates of samples passed to TryPush() to all the configured -remoteWrite.url
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// if these samples couldn't be sent to the -remoteWrite.url with the disabled persistent queue. So it is better sending samples
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// to the remaining -remoteWrite.url and dropping them on the blocked queue.
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dropSamplesOnFailureGlobal = *dropSamplesOnOverload || disableOnDiskQueueAny && len(disableOnDiskQueues) > 1
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dropDanglingQueues()
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// Start config reloader.
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configReloaderWG.Add(1)
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go func() {
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defer configReloaderWG.Done()
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for {
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select {
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case <-configReloaderStopCh:
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return
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case <-sighupCh:
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}
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reloadRelabelConfigs()
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reloadStreamAggrConfigs()
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}
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}()
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}
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func dropDanglingQueues() {
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if *keepDanglingQueues {
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return
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}
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// Remove dangling persistent queues, if any.
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// This is required for the case when the number of queues has been changed or URL have been changed.
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// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4014
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//
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// In case if there were many persistent queues with identical *remoteWriteURLs
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// the queue with the last index will be dropped.
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// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6140
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existingQueues := make(map[string]struct{}, len(rwctxsGlobal))
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for _, rwctx := range rwctxsGlobal {
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existingQueues[rwctx.fq.Dirname()] = struct{}{}
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}
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queuesDir := filepath.Join(*tmpDataPath, persistentQueueDirname)
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files := fs.MustReadDir(queuesDir)
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removed := 0
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for _, f := range files {
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dirname := f.Name()
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if _, ok := existingQueues[dirname]; !ok {
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logger.Infof("removing dangling queue %q", dirname)
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fullPath := filepath.Join(queuesDir, dirname)
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fs.MustRemoveAll(fullPath)
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removed++
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}
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}
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if removed > 0 {
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logger.Infof("removed %d dangling queues from %q, active queues: %d", removed, *tmpDataPath, len(rwctxsGlobal))
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}
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}
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func reloadRelabelConfigs() {
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relabelConfigReloads.Inc()
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logger.Infof("reloading relabel configs pointed by -remoteWrite.relabelConfig and -remoteWrite.urlRelabelConfig")
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rcs, err := loadRelabelConfigs()
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if err != nil {
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relabelConfigReloadErrors.Inc()
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relabelConfigSuccess.Set(0)
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logger.Errorf("cannot reload relabel configs; preserving the previous configs; error: %s", err)
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return
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}
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allRelabelConfigs.Store(rcs)
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relabelConfigSuccess.Set(1)
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relabelConfigTimestamp.Set(fasttime.UnixTimestamp())
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logger.Infof("successfully reloaded relabel configs")
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}
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var (
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relabelConfigReloads = metrics.NewCounter(`vmagent_relabel_config_reloads_total`)
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relabelConfigReloadErrors = metrics.NewCounter(`vmagent_relabel_config_reloads_errors_total`)
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relabelConfigSuccess = metrics.NewGauge(`vmagent_relabel_config_last_reload_successful`, nil)
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relabelConfigTimestamp = metrics.NewCounter(`vmagent_relabel_config_last_reload_success_timestamp_seconds`)
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)
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func newRemoteWriteCtxs(at *auth.Token, urls []string) []*remoteWriteCtx {
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if len(urls) == 0 {
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logger.Panicf("BUG: urls must be non-empty")
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}
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maxInmemoryBlocks := memory.Allowed() / len(urls) / *maxRowsPerBlock / 100
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if maxInmemoryBlocks / *queues > 100 {
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// There is no much sense in keeping higher number of blocks in memory,
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// since this means that the producer outperforms consumer and the queue
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// will continue growing. It is better storing the queue to file.
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maxInmemoryBlocks = 100 * *queues
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}
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if maxInmemoryBlocks < 2 {
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maxInmemoryBlocks = 2
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}
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rwctxs := make([]*remoteWriteCtx, len(urls))
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for i, remoteWriteURLRaw := range urls {
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remoteWriteURL, err := url.Parse(remoteWriteURLRaw)
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if err != nil {
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logger.Fatalf("invalid -remoteWrite.url=%q: %s", remoteWriteURL, err)
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}
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sanitizedURL := fmt.Sprintf("%d:secret-url", i+1)
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if at != nil {
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// Construct full remote_write url for the given tenant according to https://docs.victoriametrics.com/cluster-victoriametrics/#url-format
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remoteWriteURL.Path = fmt.Sprintf("%s/insert/%d:%d/prometheus/api/v1/write", remoteWriteURL.Path, at.AccountID, at.ProjectID)
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sanitizedURL = fmt.Sprintf("%s:%d:%d", sanitizedURL, at.AccountID, at.ProjectID)
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}
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if *showRemoteWriteURL {
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sanitizedURL = fmt.Sprintf("%d:%s", i+1, remoteWriteURL)
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}
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rwctxs[i] = newRemoteWriteCtx(i, remoteWriteURL, maxInmemoryBlocks, sanitizedURL)
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}
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return rwctxs
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}
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var (
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configReloaderStopCh = make(chan struct{})
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configReloaderWG sync.WaitGroup
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)
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// StartIngestionRateLimiter starts ingestion rate limiter.
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//
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// Ingestion rate limiter must be started before Init() call.
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//
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// StopIngestionRateLimiter must be called before Stop() call in order to unblock all the callers
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// to ingestion rate limiter. Otherwise deadlock may occur at Stop() call.
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func StartIngestionRateLimiter() {
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if *maxIngestionRate <= 0 {
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return
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}
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ingestionRateLimitReached := metrics.NewCounter(`vmagent_max_ingestion_rate_limit_reached_total`)
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ingestionRateLimiterStopCh = make(chan struct{})
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ingestionRateLimiter = ratelimiter.New(int64(*maxIngestionRate), ingestionRateLimitReached, ingestionRateLimiterStopCh)
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}
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// StopIngestionRateLimiter stops ingestion rate limiter.
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func StopIngestionRateLimiter() {
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if ingestionRateLimiterStopCh == nil {
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return
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}
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close(ingestionRateLimiterStopCh)
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ingestionRateLimiterStopCh = nil
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}
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var (
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ingestionRateLimiter *ratelimiter.RateLimiter
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ingestionRateLimiterStopCh chan struct{}
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)
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// Stop stops remotewrite.
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//
|
|
// It is expected that nobody calls TryPush during and after the call to this func.
|
|
func Stop() {
|
|
close(configReloaderStopCh)
|
|
configReloaderWG.Wait()
|
|
|
|
sasGlobal.Load().MustStop()
|
|
if deduplicatorGlobal != nil {
|
|
deduplicatorGlobal.MustStop()
|
|
deduplicatorGlobal = nil
|
|
}
|
|
|
|
for _, rwctx := range rwctxsGlobal {
|
|
rwctx.MustStop()
|
|
}
|
|
rwctxsGlobal = nil
|
|
|
|
if sl := hourlySeriesLimiter; sl != nil {
|
|
sl.MustStop()
|
|
}
|
|
if sl := dailySeriesLimiter; sl != nil {
|
|
sl.MustStop()
|
|
}
|
|
}
|
|
|
|
// PushDropSamplesOnFailure pushes wr to the configured remote storage systems set via -remoteWrite.url
|
|
//
|
|
// PushDropSamplesOnFailure drops wr samples if they cannot be sent to -remoteWrite.url by any reason.
|
|
//
|
|
// PushDropSamplesOnFailure can modify wr contents.
|
|
func PushDropSamplesOnFailure(at *auth.Token, wr *prompbmarshal.WriteRequest) {
|
|
_ = tryPush(at, wr, true)
|
|
}
|
|
|
|
// TryPush tries sending wr to the configured remote storage systems set via -remoteWrite.url
|
|
//
|
|
// TryPush can modify wr contents, so the caller must re-initialize wr before calling TryPush() after unsuccessful attempt.
|
|
// TryPush may send partial data from wr on unsuccessful attempt, so repeated call for the same wr may send the data multiple times.
|
|
//
|
|
// The caller must return ErrQueueFullHTTPRetry to the client, which sends wr, if TryPush returns false.
|
|
func TryPush(at *auth.Token, wr *prompbmarshal.WriteRequest) bool {
|
|
return tryPush(at, wr, dropSamplesOnFailureGlobal)
|
|
}
|
|
|
|
func tryPush(at *auth.Token, wr *prompbmarshal.WriteRequest, forceDropSamplesOnFailure bool) bool {
|
|
tss := wr.Timeseries
|
|
|
|
if at == nil && MultitenancyEnabled() {
|
|
// Write data to default tenant if at isn't set when multitenancy is enabled.
|
|
at = defaultAuthToken
|
|
}
|
|
|
|
var tenantRctx *relabelCtx
|
|
if at != nil {
|
|
// Convert at to (vm_account_id, vm_project_id) labels.
|
|
tenantRctx = getRelabelCtx()
|
|
defer putRelabelCtx(tenantRctx)
|
|
}
|
|
|
|
// Quick check whether writes to configured remote storage systems are blocked.
|
|
// This allows saving CPU time spent on relabeling and block compression
|
|
// if some of remote storage systems cannot keep up with the data ingestion rate.
|
|
rwctxs, ok := getEligibleRemoteWriteCtxs(tss, forceDropSamplesOnFailure)
|
|
if !ok {
|
|
// At least a single remote write queue is blocked and dropSamplesOnFailure isn't set.
|
|
// Return false to the caller, so it could re-send samples again.
|
|
return false
|
|
}
|
|
if len(rwctxs) == 0 {
|
|
// All the remote write queues are skipped because they are blocked and dropSamplesOnFailure is set to true.
|
|
// Return true to the caller, so it doesn't re-send the samples again.
|
|
return true
|
|
}
|
|
|
|
var rctx *relabelCtx
|
|
rcs := allRelabelConfigs.Load()
|
|
pcsGlobal := rcs.global
|
|
if pcsGlobal.Len() > 0 || *usePromCompatibleNaming {
|
|
rctx = getRelabelCtx()
|
|
defer putRelabelCtx(rctx)
|
|
}
|
|
rowsCount := getRowsCount(tss)
|
|
globalRowsPushedBeforeRelabel.Add(rowsCount)
|
|
maxSamplesPerBlock := *maxRowsPerBlock
|
|
// Allow up to 10x of labels per each block on average.
|
|
maxLabelsPerBlock := 10 * maxSamplesPerBlock
|
|
|
|
sas := sasGlobal.Load()
|
|
|
|
for len(tss) > 0 {
|
|
// Process big tss in smaller blocks in order to reduce the maximum memory usage
|
|
samplesCount := 0
|
|
labelsCount := 0
|
|
i := 0
|
|
for i < len(tss) {
|
|
samplesCount += len(tss[i].Samples)
|
|
labelsCount += len(tss[i].Samples) * len(tss[i].Labels)
|
|
i++
|
|
if samplesCount >= maxSamplesPerBlock || labelsCount >= maxLabelsPerBlock {
|
|
break
|
|
}
|
|
}
|
|
|
|
ingestionRateLimiter.Register(samplesCount)
|
|
|
|
tssBlock := tss
|
|
if i < len(tss) {
|
|
tssBlock = tss[:i]
|
|
tss = tss[i:]
|
|
} else {
|
|
tss = nil
|
|
}
|
|
if tenantRctx != nil {
|
|
tenantRctx.tenantToLabels(tssBlock, at.AccountID, at.ProjectID)
|
|
}
|
|
if rctx != nil {
|
|
rowsCountBeforeRelabel := getRowsCount(tssBlock)
|
|
tssBlock = rctx.applyRelabeling(tssBlock, pcsGlobal)
|
|
rowsCountAfterRelabel := getRowsCount(tssBlock)
|
|
rowsDroppedByGlobalRelabel.Add(rowsCountBeforeRelabel - rowsCountAfterRelabel)
|
|
}
|
|
sortLabelsIfNeeded(tssBlock)
|
|
tssBlock = limitSeriesCardinality(tssBlock)
|
|
if sas.IsEnabled() {
|
|
matchIdxs := matchIdxsPool.Get()
|
|
matchIdxs.B = sas.Push(tssBlock, matchIdxs.B)
|
|
if !*streamAggrGlobalKeepInput {
|
|
tssBlock = dropAggregatedSeries(tssBlock, matchIdxs.B, *streamAggrGlobalDropInput)
|
|
}
|
|
matchIdxsPool.Put(matchIdxs)
|
|
} else if deduplicatorGlobal != nil {
|
|
deduplicatorGlobal.Push(tssBlock)
|
|
tssBlock = tssBlock[:0]
|
|
}
|
|
if !tryPushBlockToRemoteStorages(rwctxs, tssBlock, forceDropSamplesOnFailure) {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
func getEligibleRemoteWriteCtxs(tss []prompbmarshal.TimeSeries, forceDropSamplesOnFailure bool) ([]*remoteWriteCtx, bool) {
|
|
if !disableOnDiskQueueAny {
|
|
return rwctxsGlobal, true
|
|
}
|
|
|
|
// This code is applicable if at least a single remote storage has -disableOnDiskQueue
|
|
rwctxs := make([]*remoteWriteCtx, 0, len(rwctxsGlobal))
|
|
for _, rwctx := range rwctxsGlobal {
|
|
if !rwctx.fq.IsWriteBlocked() {
|
|
rwctxs = append(rwctxs, rwctx)
|
|
} else {
|
|
rwctx.pushFailures.Inc()
|
|
if !forceDropSamplesOnFailure {
|
|
return nil, false
|
|
}
|
|
rowsCount := getRowsCount(tss)
|
|
rwctx.rowsDroppedOnPushFailure.Add(rowsCount)
|
|
}
|
|
}
|
|
return rwctxs, true
|
|
}
|
|
|
|
func pushToRemoteStoragesTrackDropped(tss []prompbmarshal.TimeSeries) {
|
|
rwctxs, _ := getEligibleRemoteWriteCtxs(tss, true)
|
|
if len(rwctxs) == 0 {
|
|
return
|
|
}
|
|
if !tryPushBlockToRemoteStorages(rwctxs, tss, true) {
|
|
logger.Panicf("BUG: tryPushBlockToRemoteStorages() must return true when forceDropSamplesOnFailure=true")
|
|
}
|
|
}
|
|
|
|
func tryPushBlockToRemoteStorages(rwctxs []*remoteWriteCtx, tssBlock []prompbmarshal.TimeSeries, forceDropSamplesOnFailure bool) bool {
|
|
if len(tssBlock) == 0 {
|
|
// Nothing to push
|
|
return true
|
|
}
|
|
|
|
if len(rwctxs) == 1 {
|
|
// Fast path - just push data to the configured single remote storage
|
|
return rwctxs[0].TryPush(tssBlock, forceDropSamplesOnFailure)
|
|
}
|
|
|
|
// We need to push tssBlock to multiple remote storages.
|
|
// This is either sharding or replication depending on -remoteWrite.shardByURL command-line flag value.
|
|
if *shardByURL && *shardByURLReplicas < len(rwctxs) {
|
|
// Shard tssBlock samples among rwctxs.
|
|
replicas := *shardByURLReplicas
|
|
if replicas <= 0 {
|
|
replicas = 1
|
|
}
|
|
return tryShardingBlockAmongRemoteStorages(rwctxs, tssBlock, replicas, forceDropSamplesOnFailure)
|
|
}
|
|
|
|
// Replicate tssBlock samples among rwctxs.
|
|
// Push tssBlock to remote storage systems in parallel in order to reduce
|
|
// the time needed for sending the data to multiple remote storage systems.
|
|
var wg sync.WaitGroup
|
|
wg.Add(len(rwctxs))
|
|
var anyPushFailed atomic.Bool
|
|
for _, rwctx := range rwctxs {
|
|
go func(rwctx *remoteWriteCtx) {
|
|
defer wg.Done()
|
|
if !rwctx.TryPush(tssBlock, forceDropSamplesOnFailure) {
|
|
anyPushFailed.Store(true)
|
|
}
|
|
}(rwctx)
|
|
}
|
|
wg.Wait()
|
|
return !anyPushFailed.Load()
|
|
}
|
|
|
|
func tryShardingBlockAmongRemoteStorages(rwctxs []*remoteWriteCtx, tssBlock []prompbmarshal.TimeSeries, replicas int, forceDropSamplesOnFailure bool) bool {
|
|
x := getTSSShards(len(rwctxs))
|
|
defer putTSSShards(x)
|
|
|
|
shards := x.shards
|
|
tmpLabels := promutils.GetLabels()
|
|
for _, ts := range tssBlock {
|
|
hashLabels := ts.Labels
|
|
if len(shardByURLLabelsMap) > 0 {
|
|
hashLabels = tmpLabels.Labels[:0]
|
|
for _, label := range ts.Labels {
|
|
if _, ok := shardByURLLabelsMap[label.Name]; ok {
|
|
hashLabels = append(hashLabels, label)
|
|
}
|
|
}
|
|
tmpLabels.Labels = hashLabels
|
|
} else if len(shardByURLIgnoreLabelsMap) > 0 {
|
|
hashLabels = tmpLabels.Labels[:0]
|
|
for _, label := range ts.Labels {
|
|
if _, ok := shardByURLIgnoreLabelsMap[label.Name]; !ok {
|
|
hashLabels = append(hashLabels, label)
|
|
}
|
|
}
|
|
tmpLabels.Labels = hashLabels
|
|
}
|
|
h := getLabelsHash(hashLabels)
|
|
idx := h % uint64(len(shards))
|
|
i := 0
|
|
for {
|
|
shards[idx] = append(shards[idx], ts)
|
|
i++
|
|
if i >= replicas {
|
|
break
|
|
}
|
|
idx++
|
|
if idx >= uint64(len(shards)) {
|
|
idx = 0
|
|
}
|
|
}
|
|
}
|
|
promutils.PutLabels(tmpLabels)
|
|
|
|
// Push sharded samples to remote storage systems in parallel in order to reduce
|
|
// the time needed for sending the data to multiple remote storage systems.
|
|
var wg sync.WaitGroup
|
|
var anyPushFailed atomic.Bool
|
|
for i, rwctx := range rwctxs {
|
|
shard := shards[i]
|
|
if len(shard) == 0 {
|
|
continue
|
|
}
|
|
wg.Add(1)
|
|
go func(rwctx *remoteWriteCtx, tss []prompbmarshal.TimeSeries) {
|
|
defer wg.Done()
|
|
if !rwctx.TryPush(tss, forceDropSamplesOnFailure) {
|
|
anyPushFailed.Store(true)
|
|
}
|
|
}(rwctx, shard)
|
|
}
|
|
wg.Wait()
|
|
return !anyPushFailed.Load()
|
|
}
|
|
|
|
type tssShards struct {
|
|
shards [][]prompbmarshal.TimeSeries
|
|
}
|
|
|
|
func getTSSShards(n int) *tssShards {
|
|
v := tssShardsPool.Get()
|
|
if v == nil {
|
|
v = &tssShards{}
|
|
}
|
|
x := v.(*tssShards)
|
|
if cap(x.shards) < n {
|
|
x.shards = make([][]prompbmarshal.TimeSeries, n)
|
|
}
|
|
x.shards = x.shards[:n]
|
|
return x
|
|
}
|
|
|
|
func putTSSShards(x *tssShards) {
|
|
shards := x.shards
|
|
for i := range shards {
|
|
clear(shards[i])
|
|
shards[i] = shards[i][:0]
|
|
}
|
|
tssShardsPool.Put(x)
|
|
}
|
|
|
|
var tssShardsPool sync.Pool
|
|
|
|
// sortLabelsIfNeeded sorts labels if -sortLabels command-line flag is set.
|
|
func sortLabelsIfNeeded(tss []prompbmarshal.TimeSeries) {
|
|
if !*sortLabels {
|
|
return
|
|
}
|
|
for i := range tss {
|
|
promrelabel.SortLabels(tss[i].Labels)
|
|
}
|
|
}
|
|
|
|
func limitSeriesCardinality(tss []prompbmarshal.TimeSeries) []prompbmarshal.TimeSeries {
|
|
if hourlySeriesLimiter == nil && dailySeriesLimiter == nil {
|
|
return tss
|
|
}
|
|
dst := make([]prompbmarshal.TimeSeries, 0, len(tss))
|
|
for i := range tss {
|
|
labels := tss[i].Labels
|
|
h := getLabelsHash(labels)
|
|
if hourlySeriesLimiter != nil && !hourlySeriesLimiter.Add(h) {
|
|
hourlySeriesLimitRowsDropped.Add(len(tss[i].Samples))
|
|
logSkippedSeries(labels, "-remoteWrite.maxHourlySeries", hourlySeriesLimiter.MaxItems())
|
|
continue
|
|
}
|
|
if dailySeriesLimiter != nil && !dailySeriesLimiter.Add(h) {
|
|
dailySeriesLimitRowsDropped.Add(len(tss[i].Samples))
|
|
logSkippedSeries(labels, "-remoteWrite.maxDailySeries", dailySeriesLimiter.MaxItems())
|
|
continue
|
|
}
|
|
dst = append(dst, tss[i])
|
|
}
|
|
return dst
|
|
}
|
|
|
|
var (
|
|
hourlySeriesLimiter *bloomfilter.Limiter
|
|
dailySeriesLimiter *bloomfilter.Limiter
|
|
|
|
hourlySeriesLimitRowsDropped = metrics.NewCounter(`vmagent_hourly_series_limit_rows_dropped_total`)
|
|
dailySeriesLimitRowsDropped = metrics.NewCounter(`vmagent_daily_series_limit_rows_dropped_total`)
|
|
)
|
|
|
|
func getLabelsHash(labels []prompbmarshal.Label) uint64 {
|
|
bb := labelsHashBufPool.Get()
|
|
b := bb.B[:0]
|
|
for _, label := range labels {
|
|
b = append(b, label.Name...)
|
|
b = append(b, label.Value...)
|
|
}
|
|
h := xxhash.Sum64(b)
|
|
bb.B = b
|
|
labelsHashBufPool.Put(bb)
|
|
return h
|
|
}
|
|
|
|
var labelsHashBufPool bytesutil.ByteBufferPool
|
|
|
|
func logSkippedSeries(labels []prompbmarshal.Label, flagName string, flagValue int) {
|
|
select {
|
|
case <-logSkippedSeriesTicker.C:
|
|
// Do not use logger.WithThrottler() here, since this will increase CPU usage
|
|
// because every call to logSkippedSeries will result to a call to labelsToString.
|
|
logger.Warnf("skip series %s because %s=%d reached", labelsToString(labels), flagName, flagValue)
|
|
default:
|
|
}
|
|
}
|
|
|
|
var logSkippedSeriesTicker = time.NewTicker(5 * time.Second)
|
|
|
|
func labelsToString(labels []prompbmarshal.Label) string {
|
|
var b []byte
|
|
b = append(b, '{')
|
|
for i, label := range labels {
|
|
b = append(b, label.Name...)
|
|
b = append(b, '=')
|
|
b = strconv.AppendQuote(b, label.Value)
|
|
if i+1 < len(labels) {
|
|
b = append(b, ',')
|
|
}
|
|
}
|
|
b = append(b, '}')
|
|
return string(b)
|
|
}
|
|
|
|
var (
|
|
globalRowsPushedBeforeRelabel = metrics.NewCounter("vmagent_remotewrite_global_rows_pushed_before_relabel_total")
|
|
rowsDroppedByGlobalRelabel = metrics.NewCounter("vmagent_remotewrite_global_relabel_metrics_dropped_total")
|
|
)
|
|
|
|
type remoteWriteCtx struct {
|
|
idx int
|
|
fq *persistentqueue.FastQueue
|
|
c *client
|
|
|
|
sas atomic.Pointer[streamaggr.Aggregators]
|
|
deduplicator *streamaggr.Deduplicator
|
|
|
|
streamAggrKeepInput bool
|
|
streamAggrDropInput bool
|
|
|
|
pss []*pendingSeries
|
|
pssNextIdx atomic.Uint64
|
|
|
|
rowsPushedAfterRelabel *metrics.Counter
|
|
rowsDroppedByRelabel *metrics.Counter
|
|
|
|
pushFailures *metrics.Counter
|
|
rowsDroppedOnPushFailure *metrics.Counter
|
|
}
|
|
|
|
func newRemoteWriteCtx(argIdx int, remoteWriteURL *url.URL, maxInmemoryBlocks int, sanitizedURL string) *remoteWriteCtx {
|
|
// strip query params, otherwise changing params resets pq
|
|
pqURL := *remoteWriteURL
|
|
pqURL.RawQuery = ""
|
|
pqURL.Fragment = ""
|
|
h := xxhash.Sum64([]byte(pqURL.String()))
|
|
queuePath := filepath.Join(*tmpDataPath, persistentQueueDirname, fmt.Sprintf("%d_%016X", argIdx+1, h))
|
|
maxPendingBytes := maxPendingBytesPerURL.GetOptionalArg(argIdx)
|
|
if maxPendingBytes != 0 && maxPendingBytes < persistentqueue.DefaultChunkFileSize {
|
|
// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4195
|
|
logger.Warnf("rounding the -remoteWrite.maxDiskUsagePerURL=%d to the minimum supported value: %d", maxPendingBytes, persistentqueue.DefaultChunkFileSize)
|
|
maxPendingBytes = persistentqueue.DefaultChunkFileSize
|
|
}
|
|
|
|
isPQDisabled := disableOnDiskQueue.GetOptionalArg(argIdx)
|
|
fq := persistentqueue.MustOpenFastQueue(queuePath, sanitizedURL, maxInmemoryBlocks, maxPendingBytes, isPQDisabled)
|
|
_ = metrics.GetOrCreateGauge(fmt.Sprintf(`vmagent_remotewrite_pending_data_bytes{path=%q, url=%q}`, queuePath, sanitizedURL), func() float64 {
|
|
return float64(fq.GetPendingBytes())
|
|
})
|
|
_ = metrics.GetOrCreateGauge(fmt.Sprintf(`vmagent_remotewrite_pending_inmemory_blocks{path=%q, url=%q}`, queuePath, sanitizedURL), func() float64 {
|
|
return float64(fq.GetInmemoryQueueLen())
|
|
})
|
|
_ = metrics.GetOrCreateGauge(fmt.Sprintf(`vmagent_remotewrite_queue_blocked{path=%q, url=%q}`, queuePath, sanitizedURL), func() float64 {
|
|
if fq.IsWriteBlocked() {
|
|
return 1
|
|
}
|
|
return 0
|
|
})
|
|
|
|
var c *client
|
|
switch remoteWriteURL.Scheme {
|
|
case "http", "https":
|
|
c = newHTTPClient(argIdx, remoteWriteURL.String(), sanitizedURL, fq, *queues)
|
|
default:
|
|
logger.Fatalf("unsupported scheme: %s for remoteWriteURL: %s, want `http`, `https`", remoteWriteURL.Scheme, sanitizedURL)
|
|
}
|
|
c.init(argIdx, *queues, sanitizedURL)
|
|
|
|
// Initialize pss
|
|
sf := significantFigures.GetOptionalArg(argIdx)
|
|
rd := roundDigits.GetOptionalArg(argIdx)
|
|
pssLen := *queues
|
|
if n := cgroup.AvailableCPUs(); pssLen > n {
|
|
// There is no sense in running more than availableCPUs concurrent pendingSeries,
|
|
// since every pendingSeries can saturate up to a single CPU.
|
|
pssLen = n
|
|
}
|
|
pss := make([]*pendingSeries, pssLen)
|
|
for i := range pss {
|
|
pss[i] = newPendingSeries(fq, c.useVMProto, sf, rd)
|
|
}
|
|
|
|
rwctx := &remoteWriteCtx{
|
|
idx: argIdx,
|
|
fq: fq,
|
|
c: c,
|
|
pss: pss,
|
|
|
|
rowsPushedAfterRelabel: metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_rows_pushed_after_relabel_total{path=%q,url=%q}`, queuePath, sanitizedURL)),
|
|
rowsDroppedByRelabel: metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_relabel_metrics_dropped_total{path=%q,url=%q}`, queuePath, sanitizedURL)),
|
|
|
|
pushFailures: metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_push_failures_total{path=%q,url=%q}`, queuePath, sanitizedURL)),
|
|
rowsDroppedOnPushFailure: metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_samples_dropped_total{path=%q,url=%q}`, queuePath, sanitizedURL)),
|
|
}
|
|
rwctx.initStreamAggrConfig()
|
|
|
|
return rwctx
|
|
}
|
|
|
|
func (rwctx *remoteWriteCtx) MustStop() {
|
|
// sas and deduplicator must be stopped before rwctx is closed
|
|
// because they can write pending series to rwctx.pss if there are any
|
|
sas := rwctx.sas.Swap(nil)
|
|
sas.MustStop()
|
|
|
|
if rwctx.deduplicator != nil {
|
|
rwctx.deduplicator.MustStop()
|
|
rwctx.deduplicator = nil
|
|
}
|
|
|
|
for _, ps := range rwctx.pss {
|
|
ps.MustStop()
|
|
}
|
|
rwctx.idx = 0
|
|
rwctx.pss = nil
|
|
rwctx.fq.UnblockAllReaders()
|
|
rwctx.c.MustStop()
|
|
rwctx.c = nil
|
|
|
|
rwctx.fq.MustClose()
|
|
rwctx.fq = nil
|
|
|
|
rwctx.rowsPushedAfterRelabel = nil
|
|
rwctx.rowsDroppedByRelabel = nil
|
|
}
|
|
|
|
// TryPush sends tss series to the configured remote write endpoint
|
|
//
|
|
// TryPush doesn't modify tss, so tss can be passed concurrently to TryPush across distinct rwctx instances.
|
|
func (rwctx *remoteWriteCtx) TryPush(tss []prompbmarshal.TimeSeries, forceDropSamplesOnFailure bool) bool {
|
|
var rctx *relabelCtx
|
|
var v *[]prompbmarshal.TimeSeries
|
|
defer func() {
|
|
if rctx == nil {
|
|
return
|
|
}
|
|
*v = prompbmarshal.ResetTimeSeries(tss)
|
|
tssPool.Put(v)
|
|
putRelabelCtx(rctx)
|
|
}()
|
|
|
|
// Apply relabeling
|
|
rcs := allRelabelConfigs.Load()
|
|
pcs := rcs.perURL[rwctx.idx]
|
|
if pcs.Len() > 0 {
|
|
rctx = getRelabelCtx()
|
|
// Make a copy of tss before applying relabeling in order to prevent
|
|
// from affecting time series for other remoteWrite.url configs.
|
|
// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/467
|
|
// and https://github.com/VictoriaMetrics/VictoriaMetrics/issues/599
|
|
v = tssPool.Get().(*[]prompbmarshal.TimeSeries)
|
|
tss = append(*v, tss...)
|
|
rowsCountBeforeRelabel := getRowsCount(tss)
|
|
tss = rctx.applyRelabeling(tss, pcs)
|
|
rowsCountAfterRelabel := getRowsCount(tss)
|
|
rwctx.rowsDroppedByRelabel.Add(rowsCountBeforeRelabel - rowsCountAfterRelabel)
|
|
}
|
|
rowsCount := getRowsCount(tss)
|
|
rwctx.rowsPushedAfterRelabel.Add(rowsCount)
|
|
|
|
// Apply stream aggregation or deduplication if they are configured
|
|
sas := rwctx.sas.Load()
|
|
if sas.IsEnabled() {
|
|
matchIdxs := matchIdxsPool.Get()
|
|
matchIdxs.B = sas.Push(tss, matchIdxs.B)
|
|
if !rwctx.streamAggrKeepInput {
|
|
if rctx == nil {
|
|
rctx = getRelabelCtx()
|
|
// Make a copy of tss before dropping aggregated series
|
|
v = tssPool.Get().(*[]prompbmarshal.TimeSeries)
|
|
tss = append(*v, tss...)
|
|
}
|
|
tss = dropAggregatedSeries(tss, matchIdxs.B, rwctx.streamAggrDropInput)
|
|
}
|
|
matchIdxsPool.Put(matchIdxs)
|
|
} else if rwctx.deduplicator != nil {
|
|
rwctx.deduplicator.Push(tss)
|
|
return true
|
|
}
|
|
|
|
// Try pushing tss to remote storage
|
|
if rwctx.tryPushInternal(tss) {
|
|
return true
|
|
}
|
|
|
|
// Couldn't push tss to remote storage
|
|
rwctx.pushFailures.Inc()
|
|
if forceDropSamplesOnFailure {
|
|
rowsCount := getRowsCount(tss)
|
|
rwctx.rowsDroppedOnPushFailure.Add(rowsCount)
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
var matchIdxsPool bytesutil.ByteBufferPool
|
|
|
|
func dropAggregatedSeries(src []prompbmarshal.TimeSeries, matchIdxs []byte, dropInput bool) []prompbmarshal.TimeSeries {
|
|
dst := src[:0]
|
|
if !dropInput {
|
|
for i, match := range matchIdxs {
|
|
if match == 1 {
|
|
continue
|
|
}
|
|
dst = append(dst, src[i])
|
|
}
|
|
}
|
|
tail := src[len(dst):]
|
|
clear(tail)
|
|
return dst
|
|
}
|
|
|
|
func (rwctx *remoteWriteCtx) pushInternalTrackDropped(tss []prompbmarshal.TimeSeries) {
|
|
if rwctx.tryPushInternal(tss) {
|
|
return
|
|
}
|
|
if !rwctx.fq.IsPersistentQueueDisabled() {
|
|
logger.Panicf("BUG: tryPushInternal must return true if -remoteWrite.disableOnDiskQueue isn't set")
|
|
}
|
|
rwctx.pushFailures.Inc()
|
|
rowsCount := getRowsCount(tss)
|
|
rwctx.rowsDroppedOnPushFailure.Add(rowsCount)
|
|
}
|
|
|
|
func (rwctx *remoteWriteCtx) tryPushInternal(tss []prompbmarshal.TimeSeries) bool {
|
|
var rctx *relabelCtx
|
|
var v *[]prompbmarshal.TimeSeries
|
|
defer func() {
|
|
if rctx == nil {
|
|
return
|
|
}
|
|
*v = prompbmarshal.ResetTimeSeries(tss)
|
|
tssPool.Put(v)
|
|
putRelabelCtx(rctx)
|
|
}()
|
|
|
|
if len(labelsGlobal) > 0 {
|
|
// Make a copy of tss before adding extra labels in order to prevent
|
|
// from affecting time series for other remoteWrite.url configs.
|
|
rctx = getRelabelCtx()
|
|
v = tssPool.Get().(*[]prompbmarshal.TimeSeries)
|
|
tss = append(*v, tss...)
|
|
rctx.appendExtraLabels(tss, labelsGlobal)
|
|
}
|
|
|
|
pss := rwctx.pss
|
|
idx := rwctx.pssNextIdx.Add(1) % uint64(len(pss))
|
|
|
|
return pss[idx].TryPush(tss)
|
|
}
|
|
|
|
var tssPool = &sync.Pool{
|
|
New: func() any {
|
|
a := []prompbmarshal.TimeSeries{}
|
|
return &a
|
|
},
|
|
}
|
|
|
|
func getRowsCount(tss []prompbmarshal.TimeSeries) int {
|
|
rowsCount := 0
|
|
for _, ts := range tss {
|
|
rowsCount += len(ts.Samples)
|
|
}
|
|
return rowsCount
|
|
}
|
|
|
|
func newMapFromStrings(a []string) map[string]struct{} {
|
|
m := make(map[string]struct{}, len(a))
|
|
for _, s := range a {
|
|
m[s] = struct{}{}
|
|
}
|
|
return m
|
|
}
|