diff --git a/app/vmalert/README.md b/app/vmalert/README.md index 72077ebef5..f37fe962a0 100644 --- a/app/vmalert/README.md +++ b/app/vmalert/README.md @@ -519,7 +519,7 @@ Alertmanagers. To avoid recording rules results and alerts state duplication in VictoriaMetrics server don't forget to configure [deduplication](https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#deduplication). -The recommended value for `-dedup.minScrapeInterval` must be greater or equal to vmalert `evaluation_interval`. +The recommended value for `-dedup.minScrapeInterval` must be multiple of vmalert's `evaluation_interval`. If you observe inconsistent or "jumping" values in series produced by vmalert, try disabling `-datasource.queryTimeAlignment` command line flag. Because of alignment, two or more vmalert HA pairs will produce results with the same timestamps. But due of backfilling (data delivered to the datasource with some delay) values of such results may differ, diff --git a/docs/vmalert.md b/docs/vmalert.md index d941caf0c4..cef7fb4ca6 100644 --- a/docs/vmalert.md +++ b/docs/vmalert.md @@ -530,7 +530,7 @@ Alertmanagers. To avoid recording rules results and alerts state duplication in VictoriaMetrics server don't forget to configure [deduplication](https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#deduplication). -The recommended value for `-dedup.minScrapeInterval` must be greater or equal to vmalert `evaluation_interval`. +The recommended value for `-dedup.minScrapeInterval` must be multiple of vmalert's `evaluation_interval`. If you observe inconsistent or "jumping" values in series produced by vmalert, try disabling `-datasource.queryTimeAlignment` command line flag. Because of alignment, two or more vmalert HA pairs will produce results with the same timestamps. But due of backfilling (data delivered to the datasource with some delay) values of such results may differ,