VictoriaMetrics v1.149.0

v1.149.0

Released at 2026-07-31

Update Note 1: vminsert in VictoriaMetrics cluster: the default value of -disableRerouting flag has changed from true to false, enabling slowness-based re-routing by default. Slowness re-routing is automatically disabled when -replicationFactor is greater than 1. If you rely on the old behavior, pass -disableRerouting command-line flag to vminsert. See #11287.

Update Note 2: vmsingle and vmselect in VictoriaMetrics cluster: the /api/v1/admin/tsdb/delete_series, /tags/delSeries endpoints now require POST method. Previously, it also accepted GET requests. If you use GET requests for this endpoint, update your scripts or tooling to use POST instead. See #5552.

• SECURITY: vmsingle and vmselect in VictoriaMetrics cluster: restrict /api/v1/admin/tsdb/delete_series, /tags/delSeries endpoints to POST method only to prevent some SSRF-based data deletion attacks. See #5552.

• FEATURE: dashboards: add Fsync avg duration panel to the Troubleshooting section of the single-node, cluster, and vmagent dashboards. This panel surfaces degradation of IO operation for faster incident triage. See #10432.

• FEATURE: vmagent: add name label identifying the corresponding -remoteWrite.url target to the vm_persistentqueue_* metrics exposed by persistent queue. See #7944. Thanks to @tIGO for contribution.

• FEATURE: vmagent: add -remoteWrite.obfuscateLabels flag for hashing values of the specified labels before sending metrics to the corresponding -remoteWrite.url. This allows sharing metrics with external systems while keeping sensitive label values hidden. See #10599.

• FEATURE: vmalert: add -replay.continueWithExecutionErr flag to allow continuing to replay other rules when a rule execution fails with a 422 response code, which can happen due to an expression syntax error or a resource limit being hit. See 11313.

• FEATURE: vmalert: add template variable $interval to expose the alerting rule group's evaluation interval. This allows generating dashboard links with a lookback window relative to the rule's interval, for example &from={{ ($activeAt.Add (parseDurationTime (printf "-%s" .Interval))).UnixMilli }}&to={{ $activeAt.UnixMilli }}. See #11232. Thanks to @1solomonwakhungu for contribution.

• FEATURE: vmbackupmanager and alerts: introduce vm_backup_last_success_at metric to track the last successful backup by type. Add alerting rules NoLatestBackupWithinLastDay, NoHourlyBackupWithinLastDay, NoDailyBackupWithinLast3Days, NoWeeklyBackupWithinLast14Days and NoMonthlyBackupWithinLast62Days to remind users about the missing backups. See #11217.

• FEATURE: vmctl: support Prometheus native histograms migration in remote read mode. Native histograms are converted into _count, _sum and _bucket series with vmrange labels in the same way as VictoriaMetrics converts native histograms received via Prometheus remote write protocol, except that for native histograms with custom buckets the original bucket bounds are preserved instead of being estimated with the exponential formula. Previously native histograms were silently ignored in SAMPLES mode, while in stream mode the migration failed with EOF error. See #11292. Thanks to @liuxu623 for contribution.

• FEATURE: vminsert in VictoriaMetrics cluster: enable slowness-based re-routing by default. Previously, -disableRerouting defaulted to true, which limited ingestion throughput to the slowest vmstorage node. Now -disableRerouting defaults to false, so vminsert automatically routes data away from the slowest vmstorage node, improving overall ingestion performance. Slowness re-routing is automatically disabled when -replicationFactor is greater than 1. See #11287.

• FEATURE: vmui: persist the selected auto-refresh interval in the URL. See VictoriaLogs#1310.

• BUGFIX: MetricsQL: properly drop data points filtered out by an inner comparison operation when its result is used on the right side of another comparison. Previously, queries like foo != (bar > 100) could return unexpected results because filtered-out data points are represented internally as NaN, and value != NaN evaluates to true. Comparisons against explicitly present NaN values keep the previous behavior. See #10018. Thanks to @zasdaym for contribution.

• BUGFIX: vmagent and vmsingle: ignore HTTP proxy environment variables when scraping targets over Unix domain sockets. See #11318. Thanks to @lwmacct for contribution.

• BUGFIX: vmalert: fixed the display of rule state badges on the Groups page in the web UI. See #11160.

• BUGFIX: vmbackupmanager: previously, vmbackupmanager was crashing on startup when it failed to restore backup state from remote storage, causing a crash loop. Now it logs the error and continues running, retrying the state restore before each scheduled backup. Added vm_backup_errors_total{type="restoreState"} metric to track backup state restore failures. See #11217.

• BUGFIX: stream aggregation: fix incorrect sum_samples_total results when enable_windows: true is set. See #11261. Thanks to @beyond-infra for contribution.

• BUGFIX: vmsingle, vmselect in VictoriaMetrics cluster and vmctl: accept scientific notation with sub-second precision (e.g. 1.784144612388E9) for timestamp args such as start and end in /api/v1/query_range and --vm-native-filter-time-start and --vm-native-filter-time-end in vmctl. Previously, values with this pattern were rejected, which is incompatible with Prometheus. See #11268. Thanks to @STiFLeR7 for contribution.