package vmstorage import ( "flag" "fmt" "net/http" "strings" "sync" "time" "github.com/VictoriaMetrics/VictoriaMetrics/app/vmstorage/promdb" "github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding" "github.com/VictoriaMetrics/VictoriaMetrics/lib/fasttime" "github.com/VictoriaMetrics/VictoriaMetrics/lib/fs" "github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver" "github.com/VictoriaMetrics/VictoriaMetrics/lib/logger" "github.com/VictoriaMetrics/VictoriaMetrics/lib/storage" "github.com/VictoriaMetrics/VictoriaMetrics/lib/syncwg" "github.com/VictoriaMetrics/metrics" ) var ( retentionPeriod = flag.Int("retentionPeriod", 1, "Retention period in months") snapshotAuthKey = flag.String("snapshotAuthKey", "", "authKey, which must be passed in query string to /snapshot* pages") forceMergeAuthKey = flag.String("forceMergeAuthKey", "", "authKey, which must be passed in query string to /internal/force_merge pages") precisionBits = flag.Int("precisionBits", 64, "The number of precision bits to store per each value. Lower precision bits improves data compression at the cost of precision loss") // DataPath is a path to storage data. DataPath = flag.String("storageDataPath", "victoria-metrics-data", "Path to storage data") finalMergeDelay = flag.Duration("finalMergeDelay", 30*time.Second, "The delay before starting final merge for per-month partition after no new data is ingested into it. "+ "Query speed and disk space usage is usually reduced after the final merge is complete. Too low delay for final merge may result in increased "+ "disk IO usage and CPU usage") bigMergeConcurrency = flag.Int("bigMergeConcurrency", 0, "The maximum number of CPU cores to use for big merges. Default value is used if set to 0") smallMergeConcurrency = flag.Int("smallMergeConcurrency", 0, "The maximum number of CPU cores to use for small merges. Default value is used if set to 0") denyQueriesOutsideRetention = flag.Bool("denyQueriesOutsideRetention", false, "Whether to deny queries outside of the configured -retentionPeriod. "+ "When set, then /api/v1/query_range would return '503 Service Unavailable' error for queries with 'from' value outside -retentionPeriod. "+ "This may be useful when multiple data sources with distinct retentions are hidden behind query-tee") ) // CheckTimeRange returns true if the given tr is denied for querying. func CheckTimeRange(tr storage.TimeRange) error { if !*denyQueriesOutsideRetention { return nil } minAllowedTimestamp := (int64(fasttime.UnixTimestamp()) - int64(*retentionPeriod)*3600*24*30) * 1000 if tr.MinTimestamp > minAllowedTimestamp { return nil } return &httpserver.ErrorWithStatusCode{ Err: fmt.Errorf("the given time range %s is outside the allowed retention of %d months according to -denyQueriesOutsideRetention", &tr, *retentionPeriod), StatusCode: http.StatusServiceUnavailable, } } // Init initializes vmstorage. func Init() { InitWithoutMetrics() registerStorageMetrics() } // InitWithoutMetrics must be called instead of Init inside tests. // // This allows multiple Init / Stop cycles. func InitWithoutMetrics() { if err := encoding.CheckPrecisionBits(uint8(*precisionBits)); err != nil { logger.Fatalf("invalid `-precisionBits`: %s", err) } storage.SetFinalMergeDelay(*finalMergeDelay) storage.SetBigMergeWorkersCount(*bigMergeConcurrency) storage.SetSmallMergeWorkersCount(*smallMergeConcurrency) logger.Infof("opening storage at %q with retention period %d months", *DataPath, *retentionPeriod) startTime := time.Now() WG = syncwg.WaitGroup{} strg, err := storage.OpenStorage(*DataPath, *retentionPeriod) if err != nil { logger.Fatalf("cannot open a storage at %s with retention period %d months: %s", *DataPath, *retentionPeriod, err) } Storage = strg var m storage.Metrics Storage.UpdateMetrics(&m) tm := &m.TableMetrics partsCount := tm.SmallPartsCount + tm.BigPartsCount blocksCount := tm.SmallBlocksCount + tm.BigBlocksCount rowsCount := tm.SmallRowsCount + tm.BigRowsCount sizeBytes := tm.SmallSizeBytes + tm.BigSizeBytes logger.Infof("successfully opened storage %q in %.3f seconds; partsCount: %d; blocksCount: %d; rowsCount: %d; sizeBytes: %d", *DataPath, time.Since(startTime).Seconds(), partsCount, blocksCount, rowsCount, sizeBytes) retentionMsecs := (int64(*retentionPeriod) * 3600 * 24 * 30) * 1000 promdb.Init(retentionMsecs) } // Storage is a storage. // // Every storage call must be wrapped into WG.Add(1) ... WG.Done() // for proper graceful shutdown when Stop is called. var Storage *storage.Storage // WG must be incremented before Storage call. // // Use syncwg instead of sync, since Add is called from concurrent goroutines. var WG syncwg.WaitGroup // AddRows adds mrs to the storage. func AddRows(mrs []storage.MetricRow) error { WG.Add(1) err := Storage.AddRows(mrs, uint8(*precisionBits)) WG.Done() return err } // DeleteMetrics deletes metrics matching tfss. // // Returns the number of deleted metrics. func DeleteMetrics(tfss []*storage.TagFilters) (int, error) { WG.Add(1) n, err := Storage.DeleteMetrics(tfss) WG.Done() return n, err } // SearchTagKeys searches for tag keys func SearchTagKeys(maxTagKeys int, deadline uint64) ([]string, error) { WG.Add(1) keys, err := Storage.SearchTagKeys(maxTagKeys, deadline) WG.Done() return keys, err } // SearchTagValues searches for tag values for the given tagKey func SearchTagValues(tagKey []byte, maxTagValues int, deadline uint64) ([]string, error) { WG.Add(1) values, err := Storage.SearchTagValues(tagKey, maxTagValues, deadline) WG.Done() return values, err } // SearchTagValueSuffixes returns all the tag value suffixes for the given tagKey and tagValuePrefix on the given tr. // // This allows implementing https://graphite-api.readthedocs.io/en/latest/api.html#metrics-find or similar APIs. func SearchTagValueSuffixes(tr storage.TimeRange, tagKey, tagValuePrefix []byte, delimiter byte, maxTagValueSuffixes int, deadline uint64) ([]string, error) { WG.Add(1) suffixes, err := Storage.SearchTagValueSuffixes(tr, tagKey, tagValuePrefix, delimiter, maxTagValueSuffixes, deadline) WG.Done() return suffixes, err } // SearchTagEntries searches for tag entries. func SearchTagEntries(maxTagKeys, maxTagValues int, deadline uint64) ([]storage.TagEntry, error) { WG.Add(1) tagEntries, err := Storage.SearchTagEntries(maxTagKeys, maxTagValues, deadline) WG.Done() return tagEntries, err } // GetTSDBStatusForDate returns TSDB status for the given date. func GetTSDBStatusForDate(date uint64, topN int, deadline uint64) (*storage.TSDBStatus, error) { WG.Add(1) status, err := Storage.GetTSDBStatusForDate(date, topN, deadline) WG.Done() return status, err } // GetSeriesCount returns the number of time series in the storage. func GetSeriesCount(deadline uint64) (uint64, error) { WG.Add(1) n, err := Storage.GetSeriesCount(deadline) WG.Done() return n, err } // Stop stops the vmstorage func Stop() { logger.Infof("gracefully closing the storage at %s", *DataPath) startTime := time.Now() WG.WaitAndBlock() promdb.MustClose() Storage.MustClose() logger.Infof("successfully closed the storage in %.3f seconds", time.Since(startTime).Seconds()) logger.Infof("the storage has been stopped") } // RequestHandler is a storage request handler. func RequestHandler(w http.ResponseWriter, r *http.Request) bool { path := r.URL.Path if path == "/internal/force_merge" { authKey := r.FormValue("authKey") if authKey != *forceMergeAuthKey { httpserver.Errorf(w, r, "invalid authKey %q. It must match the value from -forceMergeAuthKey command line flag", authKey) return true } // Run force merge in background partitionNamePrefix := r.FormValue("partition_prefix") go func() { activeForceMerges.Inc() defer activeForceMerges.Dec() logger.Infof("forced merge for partition_prefix=%q has been started", partitionNamePrefix) startTime := time.Now() if err := Storage.ForceMergePartitions(partitionNamePrefix); err != nil { logger.Errorf("error in forced merge for partition_prefix=%q: %s", partitionNamePrefix, err) } logger.Infof("forced merge for partition_prefix=%q has been successfully finished in %.3f seconds", partitionNamePrefix, time.Since(startTime).Seconds()) }() return true } prometheusCompatibleResponse := false if path == "/api/v1/admin/tsdb/snapshot" { // Handle Prometheus API - https://prometheus.io/docs/prometheus/latest/querying/api/#snapshot . prometheusCompatibleResponse = true path = "/snapshot/create" } if !strings.HasPrefix(path, "/snapshot") { return false } authKey := r.FormValue("authKey") if authKey != *snapshotAuthKey { httpserver.Errorf(w, r, "invalid authKey %q. It must match the value from -snapshotAuthKey command line flag", authKey) return true } path = path[len("/snapshot"):] switch path { case "/create": w.Header().Set("Content-Type", "application/json") snapshotPath, err := Storage.CreateSnapshot() if err != nil { err = fmt.Errorf("cannot create snapshot: %w", err) jsonResponseError(w, err) return true } if prometheusCompatibleResponse { fmt.Fprintf(w, `{"status":"success","data":{"name":%q}}`, snapshotPath) } else { fmt.Fprintf(w, `{"status":"ok","snapshot":%q}`, snapshotPath) } return true case "/list": w.Header().Set("Content-Type", "application/json") snapshots, err := Storage.ListSnapshots() if err != nil { err = fmt.Errorf("cannot list snapshots: %w", err) jsonResponseError(w, err) return true } fmt.Fprintf(w, `{"status":"ok","snapshots":[`) if len(snapshots) > 0 { for _, snapshot := range snapshots[:len(snapshots)-1] { fmt.Fprintf(w, "\n%q,", snapshot) } fmt.Fprintf(w, "\n%q\n", snapshots[len(snapshots)-1]) } fmt.Fprintf(w, `]}`) return true case "/delete": w.Header().Set("Content-Type", "application/json") snapshotName := r.FormValue("snapshot") if err := Storage.DeleteSnapshot(snapshotName); err != nil { err = fmt.Errorf("cannot delete snapshot %q: %w", snapshotName, err) jsonResponseError(w, err) return true } fmt.Fprintf(w, `{"status":"ok"}`) return true case "/delete_all": w.Header().Set("Content-Type", "application/json") snapshots, err := Storage.ListSnapshots() if err != nil { err = fmt.Errorf("cannot list snapshots: %w", err) jsonResponseError(w, err) return true } for _, snapshotName := range snapshots { if err := Storage.DeleteSnapshot(snapshotName); err != nil { err = fmt.Errorf("cannot delete snapshot %q: %w", snapshotName, err) jsonResponseError(w, err) return true } } fmt.Fprintf(w, `{"status":"ok"}`) return true default: return false } } var activeForceMerges = metrics.NewCounter("vm_active_force_merges") func registerStorageMetrics() { mCache := &storage.Metrics{} var mCacheLock sync.Mutex var lastUpdateTime time.Time m := func() *storage.Metrics { mCacheLock.Lock() defer mCacheLock.Unlock() if time.Since(lastUpdateTime) < time.Second { return mCache } var mc storage.Metrics Storage.UpdateMetrics(&mc) mCache = &mc lastUpdateTime = time.Now() return mCache } tm := func() *storage.TableMetrics { sm := m() return &sm.TableMetrics } idbm := func() *storage.IndexDBMetrics { sm := m() return &sm.IndexDBMetrics } metrics.NewGauge(fmt.Sprintf(`vm_free_disk_space_bytes{path=%q}`, *DataPath), func() float64 { return float64(fs.MustGetFreeSpace(*DataPath)) }) metrics.NewGauge(`vm_active_merges{type="storage/big"}`, func() float64 { return float64(tm().ActiveBigMerges) }) metrics.NewGauge(`vm_active_merges{type="storage/small"}`, func() float64 { return float64(tm().ActiveSmallMerges) }) metrics.NewGauge(`vm_active_merges{type="indexdb"}`, func() float64 { return float64(idbm().ActiveMerges) }) metrics.NewGauge(`vm_merges_total{type="storage/big"}`, func() float64 { return float64(tm().BigMergesCount) }) metrics.NewGauge(`vm_merges_total{type="storage/small"}`, func() float64 { return float64(tm().SmallMergesCount) }) metrics.NewGauge(`vm_merges_total{type="indexdb"}`, func() float64 { return float64(idbm().MergesCount) }) metrics.NewGauge(`vm_rows_merged_total{type="storage/big"}`, func() float64 { return float64(tm().BigRowsMerged) }) metrics.NewGauge(`vm_rows_merged_total{type="storage/small"}`, func() float64 { return float64(tm().SmallRowsMerged) }) metrics.NewGauge(`vm_rows_merged_total{type="indexdb"}`, func() float64 { return float64(idbm().ItemsMerged) }) metrics.NewGauge(`vm_rows_deleted_total{type="storage/big"}`, func() float64 { return float64(tm().BigRowsDeleted) }) metrics.NewGauge(`vm_rows_deleted_total{type="storage/small"}`, func() float64 { return float64(tm().SmallRowsDeleted) }) metrics.NewGauge(`vm_references{type="storage/big", name="parts"}`, func() float64 { return float64(tm().BigPartsRefCount) }) metrics.NewGauge(`vm_references{type="storage/small", name="parts"}`, func() float64 { return float64(tm().SmallPartsRefCount) }) metrics.NewGauge(`vm_references{type="storage", name="partitions"}`, func() float64 { return float64(tm().PartitionsRefCount) }) metrics.NewGauge(`vm_references{type="indexdb", name="objects"}`, func() float64 { return float64(idbm().IndexDBRefCount) }) metrics.NewGauge(`vm_references{type="indexdb", name="parts"}`, func() float64 { return float64(idbm().PartsRefCount) }) metrics.NewGauge(`vm_new_timeseries_created_total`, func() float64 { return float64(idbm().NewTimeseriesCreated) }) metrics.NewGauge(`vm_missing_tsids_for_metric_id_total`, func() float64 { return float64(idbm().MissingTSIDsForMetricID) }) metrics.NewGauge(`vm_date_metric_ids_search_calls_total`, func() float64 { return float64(idbm().DateMetricIDsSearchCalls) }) metrics.NewGauge(`vm_date_metric_ids_search_hits_total`, func() float64 { return float64(idbm().DateMetricIDsSearchHits) }) metrics.NewGauge(`vm_index_blocks_with_metric_ids_processed_total`, func() float64 { return float64(idbm().IndexBlocksWithMetricIDsProcessed) }) metrics.NewGauge(`vm_index_blocks_with_metric_ids_incorrect_order_total`, func() float64 { return float64(idbm().IndexBlocksWithMetricIDsIncorrectOrder) }) metrics.NewGauge(`vm_assisted_merges_total{type="storage/small"}`, func() float64 { return float64(tm().SmallAssistedMerges) }) metrics.NewGauge(`vm_assisted_merges_total{type="indexdb"}`, func() float64 { return float64(idbm().AssistedMerges) }) // See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/686 metrics.NewGauge(`vm_merge_need_free_disk_space{type="storage/small"}`, func() float64 { return float64(tm().SmallMergeNeedFreeDiskSpace) }) metrics.NewGauge(`vm_merge_need_free_disk_space{type="storage/big"}`, func() float64 { return float64(tm().BigMergeNeedFreeDiskSpace) }) metrics.NewGauge(`vm_pending_rows{type="storage"}`, func() float64 { return float64(tm().PendingRows) }) metrics.NewGauge(`vm_pending_rows{type="indexdb"}`, func() float64 { return float64(idbm().PendingItems) }) metrics.NewGauge(`vm_parts{type="storage/big"}`, func() float64 { return float64(tm().BigPartsCount) }) metrics.NewGauge(`vm_parts{type="storage/small"}`, func() float64 { return float64(tm().SmallPartsCount) }) metrics.NewGauge(`vm_parts{type="indexdb"}`, func() float64 { return float64(idbm().PartsCount) }) metrics.NewGauge(`vm_blocks{type="storage/big"}`, func() float64 { return float64(tm().BigBlocksCount) }) metrics.NewGauge(`vm_blocks{type="storage/small"}`, func() float64 { return float64(tm().SmallBlocksCount) }) metrics.NewGauge(`vm_blocks{type="indexdb"}`, func() float64 { return float64(idbm().BlocksCount) }) metrics.NewGauge(`vm_data_size_bytes{type="storage/big"}`, func() float64 { return float64(tm().BigSizeBytes) }) metrics.NewGauge(`vm_data_size_bytes{type="storage/small"}`, func() float64 { return float64(tm().SmallSizeBytes) }) metrics.NewGauge(`vm_data_size_bytes{type="indexdb"}`, func() float64 { return float64(idbm().SizeBytes) }) metrics.NewGauge(`vm_deduplicated_samples_total{type="merge"}`, func() float64 { return float64(m().DedupsDuringMerge) }) metrics.NewGauge(`vm_rows_ignored_total{reason="big_timestamp"}`, func() float64 { return float64(m().TooBigTimestampRows) }) metrics.NewGauge(`vm_rows_ignored_total{reason="small_timestamp"}`, func() float64 { return float64(m().TooSmallTimestampRows) }) metrics.NewGauge(`vm_concurrent_addrows_limit_reached_total`, func() float64 { return float64(m().AddRowsConcurrencyLimitReached) }) metrics.NewGauge(`vm_concurrent_addrows_limit_timeout_total`, func() float64 { return float64(m().AddRowsConcurrencyLimitTimeout) }) metrics.NewGauge(`vm_concurrent_addrows_dropped_rows_total`, func() float64 { return float64(m().AddRowsConcurrencyDroppedRows) }) metrics.NewGauge(`vm_concurrent_addrows_capacity`, func() float64 { return float64(m().AddRowsConcurrencyCapacity) }) metrics.NewGauge(`vm_concurrent_addrows_current`, func() float64 { return float64(m().AddRowsConcurrencyCurrent) }) metrics.NewGauge(`vm_concurrent_search_tsids_limit_reached_total`, func() float64 { return float64(m().SearchTSIDsConcurrencyLimitReached) }) metrics.NewGauge(`vm_concurrent_search_tsids_limit_timeout_total`, func() float64 { return float64(m().SearchTSIDsConcurrencyLimitTimeout) }) metrics.NewGauge(`vm_concurrent_search_tsids_capacity`, func() float64 { return float64(m().SearchTSIDsConcurrencyCapacity) }) metrics.NewGauge(`vm_concurrent_search_tsids_current`, func() float64 { return float64(m().SearchTSIDsConcurrencyCurrent) }) metrics.NewGauge(`vm_search_delays_total`, func() float64 { return float64(m().SearchDelays) }) metrics.NewGauge(`vm_slow_row_inserts_total`, func() float64 { return float64(m().SlowRowInserts) }) metrics.NewGauge(`vm_slow_per_day_index_inserts_total`, func() float64 { return float64(m().SlowPerDayIndexInserts) }) metrics.NewGauge(`vm_slow_metric_name_loads_total`, func() float64 { return float64(m().SlowMetricNameLoads) }) metrics.NewGauge(`vm_timestamps_blocks_merged_total`, func() float64 { return float64(m().TimestampsBlocksMerged) }) metrics.NewGauge(`vm_timestamps_bytes_saved_total`, func() float64 { return float64(m().TimestampsBytesSaved) }) metrics.NewGauge(`vm_rows{type="storage/big"}`, func() float64 { return float64(tm().BigRowsCount) }) metrics.NewGauge(`vm_rows{type="storage/small"}`, func() float64 { return float64(tm().SmallRowsCount) }) metrics.NewGauge(`vm_rows{type="indexdb"}`, func() float64 { return float64(idbm().ItemsCount) }) metrics.NewGauge(`vm_date_range_search_calls_total`, func() float64 { return float64(idbm().DateRangeSearchCalls) }) metrics.NewGauge(`vm_date_range_hits_total`, func() float64 { return float64(idbm().DateRangeSearchHits) }) metrics.NewGauge(`vm_missing_metric_names_for_metric_id_total`, func() float64 { return float64(idbm().MissingMetricNamesForMetricID) }) metrics.NewGauge(`vm_date_metric_id_cache_syncs_total`, func() float64 { return float64(m().DateMetricIDCacheSyncsCount) }) metrics.NewGauge(`vm_date_metric_id_cache_resets_total`, func() float64 { return float64(m().DateMetricIDCacheResetsCount) }) metrics.NewGauge(`vm_cache_entries{type="storage/tsid"}`, func() float64 { return float64(m().TSIDCacheSize) }) metrics.NewGauge(`vm_cache_entries{type="storage/metricIDs"}`, func() float64 { return float64(m().MetricIDCacheSize) }) metrics.NewGauge(`vm_cache_entries{type="storage/metricName"}`, func() float64 { return float64(m().MetricNameCacheSize) }) metrics.NewGauge(`vm_cache_entries{type="storage/date_metricID"}`, func() float64 { return float64(m().DateMetricIDCacheSize) }) metrics.NewGauge(`vm_cache_entries{type="storage/hour_metric_ids"}`, func() float64 { return float64(m().HourMetricIDCacheSize) }) metrics.NewGauge(`vm_cache_entries{type="storage/next_day_metric_ids"}`, func() float64 { return float64(m().NextDayMetricIDCacheSize) }) metrics.NewGauge(`vm_cache_entries{type="storage/bigIndexBlocks"}`, func() float64 { return float64(tm().BigIndexBlocksCacheSize) }) metrics.NewGauge(`vm_cache_entries{type="storage/smallIndexBlocks"}`, func() float64 { return float64(tm().SmallIndexBlocksCacheSize) }) metrics.NewGauge(`vm_cache_entries{type="indexdb/dataBlocks"}`, func() float64 { return float64(idbm().DataBlocksCacheSize) }) metrics.NewGauge(`vm_cache_entries{type="indexdb/indexBlocks"}`, func() float64 { return float64(idbm().IndexBlocksCacheSize) }) metrics.NewGauge(`vm_cache_entries{type="indexdb/tagFilters"}`, func() float64 { return float64(idbm().TagCacheSize) }) metrics.NewGauge(`vm_cache_entries{type="indexdb/uselessTagFilters"}`, func() float64 { return float64(idbm().UselessTagFiltersCacheSize) }) metrics.NewGauge(`vm_cache_entries{type="storage/regexps"}`, func() float64 { return float64(storage.RegexpCacheSize()) }) metrics.NewGauge(`vm_cache_entries{type="storage/prefetchedMetricIDs"}`, func() float64 { return float64(m().PrefetchedMetricIDsSize) }) metrics.NewGauge(`vm_cache_size_bytes{type="storage/tsid"}`, func() float64 { return float64(m().TSIDCacheSizeBytes) }) metrics.NewGauge(`vm_cache_size_bytes{type="storage/metricIDs"}`, func() float64 { return float64(m().MetricIDCacheSizeBytes) }) 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="storage/hour_metric_ids"}`, func() float64 { return float64(m().HourMetricIDCacheSizeBytes) }) metrics.NewGauge(`vm_cache_size_bytes{type="storage/next_day_metric_ids"}`, func() float64 { return float64(m().NextDayMetricIDCacheSizeBytes) }) 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_size_bytes{type="storage/prefetchedMetricIDs"}`, func() float64 { return float64(m().PrefetchedMetricIDsSizeBytes) }) 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/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/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) }) } func jsonResponseError(w http.ResponseWriter, err error) { logger.Errorf("%s", err) w.WriteHeader(http.StatusInternalServerError) fmt.Fprintf(w, `{"status":"error","msg":%q}`, err) }