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docs/Cluster-VictoriaMetrics.md: clarify how -storage.vminsertConnsShutdownDuration command-line flag works

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Aliaksandr Valialkin 2023-11-14 21:40:47 +01:00
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README.md
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@ -473,7 +473,10 @@ during the config update / version upgrade. In this case the following strategy
since they need to process higher load when some of `vmstorage` nodes are temporarily unavailable in the cluster.
It is possible to reduce resource usage spikes by running more `vminsert` nodes and by passing bigger values
to `-storage.vminsertConnsShutdownDuration` command-line flag at `vmstorage` nodes.
Make sure that the `-storage.vminsertConnsShutdownDuration` is smaller than the graceful timeout configured at the system which manages `vmstorage`
In this case `vmstorage` increases the interval between gradual closing of `vminsert` connections during graceful shutdown.
This reduces data ingestion slowdown during rollout restarts.
Make sure that the `-storage.vminsertConnsShutdownDuration` is smaller than the graceful shutdown timeout configured at the system which manages `vmstorage`
(e.g. Docker, Kubernetes, systemd, etc.). Otherwise the system may kill `vmstorage` node before it finishes gradual closing of `vminsert` connections.
### Minimum downtime strategy

5
docs/Cluster-VictoriaMetrics.md
View file

@ -484,7 +484,10 @@ during the config update / version upgrade. In this case the following strategy
since they need to process higher load when some of `vmstorage` nodes are temporarily unavailable in the cluster.
It is possible to reduce resource usage spikes by running more `vminsert` nodes and by passing bigger values
to `-storage.vminsertConnsShutdownDuration` command-line flag at `vmstorage` nodes.
Make sure that the `-storage.vminsertConnsShutdownDuration` is smaller than the graceful timeout configured at the system which manages `vmstorage`
In this case `vmstorage` increases the interval between gradual closing of `vminsert` connections during graceful shutdown.
This reduces data ingestion slowdown during rollout restarts.
Make sure that the `-storage.vminsertConnsShutdownDuration` is smaller than the graceful shutdown timeout configured at the system which manages `vmstorage`
(e.g. Docker, Kubernetes, systemd, etc.). Otherwise the system may kill `vmstorage` node before it finishes gradual closing of `vminsert` connections.
### Minimum downtime strategy