mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-11-25 06:17:36 +01:00
e472f0b23b
The origin of the error has been detected and documented in the code, so it is enough to export a counter for such errors at `vm_index_blocks_with_metric_ids_incorrect_order_total`, so it could be monitored and alerted on high error rates. Export also the counter for processed index blocks with metricIDs - `vm_index_blocks_with_metric_ids_processed_total`, so its' rate could be compared to `rate(vm_index_blocks_with_metric_ids_incorrect_order_total)`.
545 lines
19 KiB
Go
545 lines
19 KiB
Go
package vmstorage
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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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"strings"
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"sync"
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"time"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/syncwg"
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"github.com/VictoriaMetrics/metrics"
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)
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var (
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retentionPeriod = flag.Int("retentionPeriod", 1, "Retention period in months")
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snapshotAuthKey = flag.String("snapshotAuthKey", "", "authKey, which must be passed in query string to /snapshot* pages")
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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")
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// DataPath is a path to storage data.
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DataPath = flag.String("storageDataPath", "victoria-metrics-data", "Path to storage data")
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bigMergeConcurrency = flag.Int("bigMergeConcurrency", 0, "The maximum number of CPU cores to use for big merges. Default value is used if set to 0")
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smallMergeConcurrency = flag.Int("smallMergeConcurrency", 0, "The maximum number of CPU cores to use for small merges. Default value is used if set to 0")
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)
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// Init initializes vmstorage.
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func Init() {
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InitWithoutMetrics()
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registerStorageMetrics()
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}
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// InitWithoutMetrics must be called instead of Init inside tests.
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//
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// This allows multiple Init / Stop cycles.
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func InitWithoutMetrics() {
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if err := encoding.CheckPrecisionBits(uint8(*precisionBits)); err != nil {
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logger.Fatalf("invalid `-precisionBits`: %s", err)
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}
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storage.SetBigMergeWorkersCount(*bigMergeConcurrency)
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storage.SetSmallMergeWorkersCount(*smallMergeConcurrency)
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logger.Infof("opening storage at %q with retention period %d months", *DataPath, *retentionPeriod)
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startTime := time.Now()
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WG = syncwg.WaitGroup{}
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strg, err := storage.OpenStorage(*DataPath, *retentionPeriod)
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if err != nil {
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logger.Fatalf("cannot open a storage at %s with retention period %d months: %s", *DataPath, *retentionPeriod, err)
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}
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Storage = strg
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var m storage.Metrics
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Storage.UpdateMetrics(&m)
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tm := &m.TableMetrics
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partsCount := tm.SmallPartsCount + tm.BigPartsCount
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blocksCount := tm.SmallBlocksCount + tm.BigBlocksCount
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rowsCount := tm.SmallRowsCount + tm.BigRowsCount
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sizeBytes := tm.SmallSizeBytes + tm.BigSizeBytes
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logger.Infof("successfully opened storage %q in %s; partsCount: %d; blocksCount: %d; rowsCount: %d; sizeBytes: %d",
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*DataPath, time.Since(startTime), partsCount, blocksCount, rowsCount, sizeBytes)
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}
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// Storage is a storage.
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//
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// Every storage call must be wrapped into WG.Add(1) ... WG.Done()
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// for proper graceful shutdown when Stop is called.
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var Storage *storage.Storage
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// WG must be incremented before Storage call.
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//
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// Use syncwg instead of sync, since Add is called from concurrent goroutines.
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var WG syncwg.WaitGroup
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// AddRows adds mrs to the storage.
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func AddRows(mrs []storage.MetricRow) error {
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WG.Add(1)
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err := Storage.AddRows(mrs, uint8(*precisionBits))
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WG.Done()
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return err
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}
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// DeleteMetrics deletes metrics matching tfss.
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//
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// Returns the number of deleted metrics.
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func DeleteMetrics(tfss []*storage.TagFilters) (int, error) {
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WG.Add(1)
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n, err := Storage.DeleteMetrics(tfss)
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WG.Done()
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return n, err
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}
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// SearchTagKeys searches for tag keys
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func SearchTagKeys(maxTagKeys int) ([]string, error) {
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WG.Add(1)
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keys, err := Storage.SearchTagKeys(maxTagKeys)
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WG.Done()
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return keys, err
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}
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// SearchTagValues searches for tag values for the given tagKey
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func SearchTagValues(tagKey []byte, maxTagValues int) ([]string, error) {
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WG.Add(1)
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values, err := Storage.SearchTagValues(tagKey, maxTagValues)
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WG.Done()
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return values, err
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}
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// SearchTagEntries searches for tag entries.
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func SearchTagEntries(maxTagKeys, maxTagValues int) ([]storage.TagEntry, error) {
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WG.Add(1)
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tagEntries, err := Storage.SearchTagEntries(maxTagKeys, maxTagValues)
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WG.Done()
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return tagEntries, err
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}
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// GetSeriesCount returns the number of time series in the storage.
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func GetSeriesCount() (uint64, error) {
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WG.Add(1)
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n, err := Storage.GetSeriesCount()
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WG.Done()
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return n, err
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}
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// Stop stops the vmstorage
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func Stop() {
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logger.Infof("gracefully closing the storage at %s", *DataPath)
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startTime := time.Now()
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WG.WaitAndBlock()
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Storage.MustClose()
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logger.Infof("successfully closed the storage in %s", time.Since(startTime))
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logger.Infof("the storage has been stopped")
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}
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// RequestHandler is a storage request handler.
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func RequestHandler(w http.ResponseWriter, r *http.Request) bool {
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path := r.URL.Path
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prometheusCompatibleResponse := false
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if path == "/api/v1/admin/tsdb/snapshot" {
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// Handle Prometheus API - https://prometheus.io/docs/prometheus/latest/querying/api/#snapshot .
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prometheusCompatibleResponse = true
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path = "/snapshot/create"
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}
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if !strings.HasPrefix(path, "/snapshot") {
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return false
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}
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authKey := r.FormValue("authKey")
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if authKey != *snapshotAuthKey {
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httpserver.Errorf(w, "invalid authKey %q. It must match the value from -snapshotAuthKey command line flag", authKey)
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return true
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}
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path = path[len("/snapshot"):]
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switch path {
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case "/create":
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w.Header().Set("Content-Type", "application/json")
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snapshotPath, err := Storage.CreateSnapshot()
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if err != nil {
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msg := fmt.Sprintf("cannot create snapshot: %s", err)
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logger.Errorf("%s", msg)
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fmt.Fprintf(w, `{"status":"error","msg":%q}`, msg)
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return true
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}
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if prometheusCompatibleResponse {
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fmt.Fprintf(w, `{"status":"success","data":{"name":%q}}`, snapshotPath)
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} else {
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fmt.Fprintf(w, `{"status":"ok","snapshot":%q}`, snapshotPath)
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}
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return true
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case "/list":
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w.Header().Set("Content-Type", "application/json")
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snapshots, err := Storage.ListSnapshots()
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if err != nil {
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msg := fmt.Sprintf("cannot list snapshots: %s", err)
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logger.Errorf("%s", msg)
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fmt.Fprintf(w, `{"status":"error","msg":%q}`, msg)
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return true
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}
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fmt.Fprintf(w, `{"status":"ok","snapshots":[`)
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if len(snapshots) > 0 {
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for _, snapshot := range snapshots[:len(snapshots)-1] {
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fmt.Fprintf(w, "\n%q,", snapshot)
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}
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fmt.Fprintf(w, "\n%q\n", snapshots[len(snapshots)-1])
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}
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fmt.Fprintf(w, `]}`)
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return true
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case "/delete":
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w.Header().Set("Content-Type", "application/json")
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snapshotName := r.FormValue("snapshot")
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if err := Storage.DeleteSnapshot(snapshotName); err != nil {
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msg := fmt.Sprintf("cannot delete snapshot %q: %s", snapshotName, err)
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logger.Errorf("%s", msg)
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fmt.Fprintf(w, `{"status":"error","msg":%q}`, msg)
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return true
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}
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fmt.Fprintf(w, `{"status":"ok"}`)
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return true
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case "/delete_all":
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w.Header().Set("Content-Type", "application/json")
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snapshots, err := Storage.ListSnapshots()
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if err != nil {
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msg := fmt.Sprintf("cannot list snapshots: %s", err)
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logger.Errorf("%s", msg)
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fmt.Fprintf(w, `{"status":"error","msg":%q}`, msg)
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return true
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}
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for _, snapshotName := range snapshots {
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if err := Storage.DeleteSnapshot(snapshotName); err != nil {
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msg := fmt.Sprintf("cannot delete snapshot %q: %s", snapshotName, err)
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logger.Errorf("%s", msg)
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fmt.Fprintf(w, `{"status":"error","msg":%q}`, msg)
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return true
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}
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}
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fmt.Fprintf(w, `{"status":"ok"}`)
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return true
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default:
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return false
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}
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}
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func registerStorageMetrics() {
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mCache := &storage.Metrics{}
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var mCacheLock sync.Mutex
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var lastUpdateTime time.Time
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m := func() *storage.Metrics {
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mCacheLock.Lock()
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defer mCacheLock.Unlock()
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if time.Since(lastUpdateTime) < time.Second {
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return mCache
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}
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var mc storage.Metrics
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Storage.UpdateMetrics(&mc)
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mCache = &mc
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lastUpdateTime = time.Now()
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return mCache
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}
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tm := func() *storage.TableMetrics {
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sm := m()
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return &sm.TableMetrics
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}
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idbm := func() *storage.IndexDBMetrics {
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sm := m()
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return &sm.IndexDBMetrics
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}
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metrics.NewGauge(`vm_active_merges{type="storage/big"}`, func() float64 {
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return float64(tm().ActiveBigMerges)
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})
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metrics.NewGauge(`vm_active_merges{type="storage/small"}`, func() float64 {
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return float64(tm().ActiveSmallMerges)
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})
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metrics.NewGauge(`vm_active_merges{type="indexdb"}`, func() float64 {
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return float64(idbm().ActiveMerges)
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})
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metrics.NewGauge(`vm_merges_total{type="storage/big"}`, func() float64 {
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return float64(tm().BigMergesCount)
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})
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metrics.NewGauge(`vm_merges_total{type="storage/small"}`, func() float64 {
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return float64(tm().SmallMergesCount)
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})
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metrics.NewGauge(`vm_merges_total{type="indexdb"}`, func() float64 {
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return float64(idbm().MergesCount)
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})
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metrics.NewGauge(`vm_rows_merged_total{type="storage/big"}`, func() float64 {
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return float64(tm().BigRowsMerged)
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})
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metrics.NewGauge(`vm_rows_merged_total{type="storage/small"}`, func() float64 {
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return float64(tm().SmallRowsMerged)
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})
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metrics.NewGauge(`vm_rows_merged_total{type="indexdb"}`, func() float64 {
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return float64(idbm().ItemsMerged)
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})
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metrics.NewGauge(`vm_rows_deleted_total{type="storage/big"}`, func() float64 {
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return float64(tm().BigRowsDeleted)
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})
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metrics.NewGauge(`vm_rows_deleted_total{type="storage/small"}`, func() float64 {
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return float64(tm().SmallRowsDeleted)
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})
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metrics.NewGauge(`vm_references{type="storage/big", name="parts"}`, func() float64 {
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return float64(tm().BigPartsRefCount)
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})
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metrics.NewGauge(`vm_references{type="storage/small", name="parts"}`, func() float64 {
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return float64(tm().SmallPartsRefCount)
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})
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metrics.NewGauge(`vm_references{type="storage", name="partitions"}`, func() float64 {
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return float64(tm().PartitionsRefCount)
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})
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metrics.NewGauge(`vm_references{type="indexdb", name="objects"}`, func() float64 {
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return float64(idbm().IndexDBRefCount)
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})
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metrics.NewGauge(`vm_references{type="indexdb", name="parts"}`, func() float64 {
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return float64(idbm().PartsRefCount)
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})
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metrics.NewGauge(`vm_missing_tsids_for_metric_id_total`, func() float64 {
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return float64(idbm().MissingTSIDsForMetricID)
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})
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metrics.NewGauge(`vm_recent_hour_metric_ids_search_calls_total`, func() float64 {
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return float64(idbm().RecentHourMetricIDsSearchCalls)
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})
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metrics.NewGauge(`vm_recent_hour_metric_ids_search_hits_total`, func() float64 {
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return float64(idbm().RecentHourMetricIDsSearchHits)
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})
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metrics.NewGauge(`vm_date_metric_ids_search_calls_total`, func() float64 {
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return float64(idbm().DateMetricIDsSearchCalls)
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})
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metrics.NewGauge(`vm_date_metric_ids_search_hits_total`, func() float64 {
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return float64(idbm().DateMetricIDsSearchHits)
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})
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metrics.NewGauge(`vm_index_blocks_with_metric_ids_processed_total`, func() float64 {
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return float64(idbm().IndexBlocksWithMetricIDsProcessed)
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})
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metrics.NewGauge(`vm_index_blocks_with_metric_ids_incorrect_order_total`, func() float64 {
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return float64(idbm().IndexBlocksWithMetricIDsIncorrectOrder)
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})
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metrics.NewGauge(`vm_assisted_merges_total{type="storage/small"}`, func() float64 {
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return float64(tm().SmallAssistedMerges)
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})
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metrics.NewGauge(`vm_assisted_merges_total{type="indexdb"}`, func() float64 {
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return float64(idbm().AssistedMerges)
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})
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metrics.NewGauge(`vm_pending_rows{type="storage"}`, func() float64 {
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return float64(tm().PendingRows)
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})
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metrics.NewGauge(`vm_pending_rows{type="indexdb"}`, func() float64 {
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return float64(idbm().PendingItems)
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})
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metrics.NewGauge(`vm_parts{type="storage/big"}`, func() float64 {
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return float64(tm().BigPartsCount)
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})
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metrics.NewGauge(`vm_parts{type="storage/small"}`, func() float64 {
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return float64(tm().SmallPartsCount)
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})
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metrics.NewGauge(`vm_parts{type="indexdb"}`, func() float64 {
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return float64(idbm().PartsCount)
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})
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metrics.NewGauge(`vm_blocks{type="storage/big"}`, func() float64 {
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return float64(tm().BigBlocksCount)
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})
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metrics.NewGauge(`vm_blocks{type="storage/small"}`, func() float64 {
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return float64(tm().SmallBlocksCount)
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})
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metrics.NewGauge(`vm_blocks{type="indexdb"}`, func() float64 {
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return float64(idbm().BlocksCount)
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})
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metrics.NewGauge(`vm_data_size_bytes{type="storage/big"}`, func() float64 {
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return float64(tm().BigSizeBytes)
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})
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metrics.NewGauge(`vm_data_size_bytes{type="storage/small"}`, func() float64 {
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return float64(tm().SmallSizeBytes)
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})
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metrics.NewGauge(`vm_data_size_bytes{type="indexdb"}`, func() float64 {
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return float64(idbm().SizeBytes)
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})
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metrics.NewGauge(`vm_rows_ignored_total{reason="big_timestamp"}`, func() float64 {
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return float64(m().TooBigTimestampRows)
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})
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metrics.NewGauge(`vm_rows_ignored_total{reason="small_timestamp"}`, func() float64 {
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return float64(m().TooSmallTimestampRows)
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})
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metrics.NewGauge(`vm_concurrent_addrows_limit_reached_total`, func() float64 {
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return float64(m().AddRowsConcurrencyLimitReached)
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})
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metrics.NewGauge(`vm_concurrent_addrows_limit_timeout_total`, func() float64 {
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return float64(m().AddRowsConcurrencyLimitTimeout)
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})
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metrics.NewGauge(`vm_concurrent_addrows_dropped_rows_total`, func() float64 {
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return float64(m().AddRowsConcurrencyDroppedRows)
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})
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metrics.NewGauge(`vm_concurrent_addrows_capacity`, func() float64 {
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return float64(m().AddRowsConcurrencyCapacity)
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})
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metrics.NewGauge(`vm_concurrent_addrows_current`, func() float64 {
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return float64(m().AddRowsConcurrencyCurrent)
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})
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metrics.NewGauge(`vm_rows{type="storage/big"}`, func() float64 {
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return float64(tm().BigRowsCount)
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})
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metrics.NewGauge(`vm_rows{type="storage/small"}`, func() float64 {
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return float64(tm().SmallRowsCount)
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})
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metrics.NewGauge(`vm_rows{type="indexdb"}`, func() float64 {
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return float64(idbm().ItemsCount)
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})
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metrics.NewGauge(`vm_cache_entries{type="storage/tsid"}`, func() float64 {
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return float64(m().TSIDCacheSize)
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})
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metrics.NewGauge(`vm_cache_entries{type="storage/metricIDs"}`, func() float64 {
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return float64(m().MetricIDCacheSize)
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})
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metrics.NewGauge(`vm_cache_entries{type="storage/metricName"}`, func() float64 {
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return float64(m().MetricNameCacheSize)
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})
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metrics.NewGauge(`vm_cache_entries{type="storage/date_metricID"}`, func() float64 {
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return float64(m().DateMetricIDCacheSize)
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})
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metrics.NewGauge(`vm_cache_entries{type="storage/hour_metric_ids"}`, func() float64 {
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return float64(m().HourMetricIDCacheSize)
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})
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metrics.NewGauge(`vm_cache_entries{type="storage/bigIndexBlocks"}`, func() float64 {
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return float64(tm().BigIndexBlocksCacheSize)
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})
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metrics.NewGauge(`vm_cache_entries{type="storage/smallIndexBlocks"}`, func() float64 {
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return float64(tm().SmallIndexBlocksCacheSize)
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})
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metrics.NewGauge(`vm_cache_entries{type="indexdb/dataBlocks"}`, func() float64 {
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return float64(idbm().DataBlocksCacheSize)
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})
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metrics.NewGauge(`vm_cache_entries{type="indexdb/indexBlocks"}`, func() float64 {
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return float64(idbm().IndexBlocksCacheSize)
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})
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metrics.NewGauge(`vm_cache_entries{type="indexdb/tagFilters"}`, func() float64 {
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return float64(idbm().TagCacheSize)
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})
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metrics.NewGauge(`vm_cache_entries{type="indexdb/uselessTagFilters"}`, func() float64 {
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return float64(idbm().UselessTagFiltersCacheSize)
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})
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metrics.NewGauge(`vm_cache_entries{type="storage/regexps"}`, func() float64 {
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return float64(storage.RegexpCacheSize())
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})
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metrics.NewGauge(`vm_cache_size_bytes{type="storage/tsid"}`, func() float64 {
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return float64(m().TSIDCacheSizeBytes)
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})
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metrics.NewGauge(`vm_cache_size_bytes{type="storage/metricIDs"}`, func() float64 {
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return float64(m().MetricIDCacheSizeBytes)
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})
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metrics.NewGauge(`vm_cache_size_bytes{type="storage/metricName"}`, func() float64 {
|
|
return float64(m().MetricNameCacheSizeBytes)
|
|
})
|
|
metrics.NewGauge(`vm_cache_size_bytes{type="storage/date_metricID"}`, func() float64 {
|
|
return float64(m().DateMetricIDCacheSizeBytes)
|
|
})
|
|
metrics.NewGauge(`vm_cache_size_bytes{type="indexdb/tagFilters"}`, func() float64 {
|
|
return float64(idbm().TagCacheSizeBytes)
|
|
})
|
|
metrics.NewGauge(`vm_cache_size_bytes{type="indexdb/uselessTagFilters"}`, func() float64 {
|
|
return float64(idbm().UselessTagFiltersCacheSizeBytes)
|
|
})
|
|
|
|
metrics.NewGauge(`vm_cache_requests_total{type="storage/tsid"}`, func() float64 {
|
|
return float64(m().TSIDCacheRequests)
|
|
})
|
|
metrics.NewGauge(`vm_cache_requests_total{type="storage/metricIDs"}`, func() float64 {
|
|
return float64(m().MetricIDCacheRequests)
|
|
})
|
|
metrics.NewGauge(`vm_cache_requests_total{type="storage/metricName"}`, func() float64 {
|
|
return float64(m().MetricNameCacheRequests)
|
|
})
|
|
metrics.NewGauge(`vm_cache_requests_total{type="storage/date_metricID"}`, func() float64 {
|
|
return float64(m().DateMetricIDCacheRequests)
|
|
})
|
|
metrics.NewGauge(`vm_cache_requests_total{type="storage/bigIndexBlocks"}`, func() float64 {
|
|
return float64(tm().BigIndexBlocksCacheRequests)
|
|
})
|
|
metrics.NewGauge(`vm_cache_requests_total{type="storage/smallIndexBlocks"}`, func() float64 {
|
|
return float64(tm().SmallIndexBlocksCacheRequests)
|
|
})
|
|
metrics.NewGauge(`vm_cache_requests_total{type="indexdb/dataBlocks"}`, func() float64 {
|
|
return float64(idbm().DataBlocksCacheRequests)
|
|
})
|
|
metrics.NewGauge(`vm_cache_requests_total{type="indexdb/indexBlocks"}`, func() float64 {
|
|
return float64(idbm().IndexBlocksCacheRequests)
|
|
})
|
|
metrics.NewGauge(`vm_cache_requests_total{type="indexdb/tagFilters"}`, func() float64 {
|
|
return float64(idbm().TagCacheRequests)
|
|
})
|
|
metrics.NewGauge(`vm_cache_requests_total{type="indexdb/uselessTagFilters"}`, func() float64 {
|
|
return float64(idbm().UselessTagFiltersCacheRequests)
|
|
})
|
|
metrics.NewGauge(`vm_cache_requests_total{type="storage/regexps"}`, func() float64 {
|
|
return float64(storage.RegexpCacheRequests())
|
|
})
|
|
|
|
metrics.NewGauge(`vm_cache_misses_total{type="storage/tsid"}`, func() float64 {
|
|
return float64(m().TSIDCacheMisses)
|
|
})
|
|
metrics.NewGauge(`vm_cache_misses_total{type="storage/metricIDs"}`, func() float64 {
|
|
return float64(m().MetricIDCacheMisses)
|
|
})
|
|
metrics.NewGauge(`vm_cache_misses_total{type="storage/metricName"}`, func() float64 {
|
|
return float64(m().MetricNameCacheMisses)
|
|
})
|
|
metrics.NewGauge(`vm_cache_misses_total{type="storage/date_metricID"}`, func() float64 {
|
|
return float64(m().DateMetricIDCacheMisses)
|
|
})
|
|
metrics.NewGauge(`vm_cache_misses_total{type="storage/bigIndexBlocks"}`, func() float64 {
|
|
return float64(tm().BigIndexBlocksCacheMisses)
|
|
})
|
|
metrics.NewGauge(`vm_cache_misses_total{type="storage/smallIndexBlocks"}`, func() float64 {
|
|
return float64(tm().SmallIndexBlocksCacheMisses)
|
|
})
|
|
metrics.NewGauge(`vm_cache_misses_total{type="indexdb/dataBlocks"}`, func() float64 {
|
|
return float64(idbm().DataBlocksCacheMisses)
|
|
})
|
|
metrics.NewGauge(`vm_cache_misses_total{type="indexdb/indexBlocks"}`, func() float64 {
|
|
return float64(idbm().IndexBlocksCacheMisses)
|
|
})
|
|
metrics.NewGauge(`vm_cache_misses_total{type="indexdb/tagFilters"}`, func() float64 {
|
|
return float64(idbm().TagCacheMisses)
|
|
})
|
|
metrics.NewGauge(`vm_cache_misses_total{type="indexdb/uselessTagFilters"}`, func() float64 {
|
|
return float64(idbm().UselessTagFiltersCacheMisses)
|
|
})
|
|
metrics.NewGauge(`vm_cache_misses_total{type="storage/regexps"}`, func() float64 {
|
|
return float64(storage.RegexpCacheMisses())
|
|
})
|
|
|
|
metrics.NewGauge(`vm_deleted_metrics_total{type="indexdb"}`, func() float64 {
|
|
return float64(idbm().DeletedMetricsCount)
|
|
})
|
|
|
|
metrics.NewGauge(`vm_cache_collisions_total{type="storage/tsid"}`, func() float64 {
|
|
return float64(m().TSIDCacheCollisions)
|
|
})
|
|
metrics.NewGauge(`vm_cache_collisions_total{type="storage/metricName"}`, func() float64 {
|
|
return float64(m().MetricNameCacheCollisions)
|
|
})
|
|
metrics.NewGauge(`vm_cache_collisions_total{type="storage/date_metricID"}`, func() float64 {
|
|
return float64(m().DateMetricIDCacheCollisions)
|
|
})
|
|
}
|