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Update Cluster-VictoriaMetrics.md (#1806)

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replicationFactor flag should be passed to vmselect instead of vminsert for improving query speed:)
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vic 2021-11-17 06:59:43 +08:00 committed by Aliaksandr Valialkin
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@ -367,7 +367,7 @@ so up to 2 `vmstorage` nodes can be lost without data loss. The minimum number o
the remaining 3 `vmstorage` nodes could provide the `-replicationFactor=3` for newly ingested data. the remaining 3 `vmstorage` nodes could provide the `-replicationFactor=3` for newly ingested data.
When the replication is enabled, `-dedup.minScrapeInterval=1ms` command-line flag must be passed to `vmselect` nodes. When the replication is enabled, `-dedup.minScrapeInterval=1ms` command-line flag must be passed to `vmselect` nodes.
Optional `-replicationFactor=N` command-line flag can be passed to `vminsert` for improving query performance when up to `N-1` vmstorage nodes respond slowly and/or temporarily unavailable, since `vmselect` doesn't wait for responses from up to `N-1` `vmstorage` nodes. Sometimes `-replicationFactor` at `vmselect` nodes can result in partial responses. See [this issues](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1207) for details. Optional `-replicationFactor=N` command-line flag can be passed to `vmselect` for improving query performance when up to `N-1` vmstorage nodes respond slowly and/or temporarily unavailable, since `vmselect` doesn't wait for responses from up to `N-1` `vmstorage` nodes. Sometimes `-replicationFactor` at `vmselect` nodes can result in partial responses. See [this issues](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1207) for details.
The `-dedup.minScrapeInterval=1ms` de-duplicates replicated data during queries. If duplicate data is pushed to VictoriaMetrics from identically configured [vmagent](https://docs.victoriametrics.com/vmagent.html) instances or Prometheus instances, then the `-dedup.minScrapeInterval` must be set to bigger values according to [deduplication docs](https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#deduplication). The `-dedup.minScrapeInterval=1ms` de-duplicates replicated data during queries. If duplicate data is pushed to VictoriaMetrics from identically configured [vmagent](https://docs.victoriametrics.com/vmagent.html) instances or Prometheus instances, then the `-dedup.minScrapeInterval` must be set to bigger values according to [deduplication docs](https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#deduplication).
Note that [replication doesn't save from disaster](https://medium.com/@valyala/speeding-up-backups-for-big-time-series-databases-533c1a927883), Note that [replication doesn't save from disaster](https://medium.com/@valyala/speeding-up-backups-for-big-time-series-databases-533c1a927883),

2
docs/Cluster-VictoriaMetrics.md
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@ -371,7 +371,7 @@ so up to 2 `vmstorage` nodes can be lost without data loss. The minimum number o
the remaining 3 `vmstorage` nodes could provide the `-replicationFactor=3` for newly ingested data. the remaining 3 `vmstorage` nodes could provide the `-replicationFactor=3` for newly ingested data.
When the replication is enabled, `-dedup.minScrapeInterval=1ms` command-line flag must be passed to `vmselect` nodes. When the replication is enabled, `-dedup.minScrapeInterval=1ms` command-line flag must be passed to `vmselect` nodes.
Optional `-replicationFactor=N` command-line flag can be passed to `vminsert` for improving query performance when up to `N-1` vmstorage nodes respond slowly and/or temporarily unavailable, since `vmselect` doesn't wait for responses from up to `N-1` `vmstorage` nodes. Sometimes `-replicationFactor` at `vmselect` nodes can result in partial responses. See [this issues](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1207) for details. Optional `-replicationFactor=N` command-line flag can be passed to `vmselect` for improving query performance when up to `N-1` vmstorage nodes respond slowly and/or temporarily unavailable, since `vmselect` doesn't wait for responses from up to `N-1` `vmstorage` nodes. Sometimes `-replicationFactor` at `vmselect` nodes can result in partial responses. See [this issues](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1207) for details.
The `-dedup.minScrapeInterval=1ms` de-duplicates replicated data during queries. If duplicate data is pushed to VictoriaMetrics from identically configured [vmagent](https://docs.victoriametrics.com/vmagent.html) instances or Prometheus instances, then the `-dedup.minScrapeInterval` must be set to bigger values according to [deduplication docs](https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#deduplication). The `-dedup.minScrapeInterval=1ms` de-duplicates replicated data during queries. If duplicate data is pushed to VictoriaMetrics from identically configured [vmagent](https://docs.victoriametrics.com/vmagent.html) instances or Prometheus instances, then the `-dedup.minScrapeInterval` must be set to bigger values according to [deduplication docs](https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#deduplication).
Note that [replication doesn't save from disaster](https://medium.com/@valyala/speeding-up-backups-for-big-time-series-databases-533c1a927883), Note that [replication doesn't save from disaster](https://medium.com/@valyala/speeding-up-backups-for-big-time-series-databases-533c1a927883),