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docs/Single-server-VictoriaMetrics.md: add Replication and Backups sections

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Aliaksandr Valialkin 2020-05-16 22:27:48 +03:00
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docs/Single-server-VictoriaMetrics.md
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@ -116,6 +116,8 @@ Cluster version is available [here](https://github.com/VictoriaMetrics/VictoriaM
* [Monitoring](#monitoring)
* [Troubleshooting](#troubleshooting)
* [Backfilling](#backfilling)
* [Replication](#replication)
* [Backups](#backups)
* [Profiling](#profiling)
* [Integrations](#integrations)
* [Third-party contributions](#third-party-contributions)
@ -782,6 +784,8 @@ remote_write:
kill -HUP `pidof prometheus`
```
It is recommended to use [vmagent](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/app/vmagent/README.md) instead of Prometheus for highly loaded setups.
4) Now Prometheus should write data into all the configured `remote_write` urls in parallel.
5) Set up [Promxy](https://github.com/jacksontj/promxy) in front of all the VictoriaMetrics replicas.
6) Set up Prometheus datasource in Grafana that points to Promxy.
@ -792,6 +796,7 @@ to write data to `victoriametrics-addr-1`, while each `r2` should write data to
Another option is to write data simultaneously from Prometheus HA pair to a pair of VictoriaMetrics instances
with the enabled de-duplication. See [this section](#deduplication) for details.
### Deduplication
VictoriaMetrics de-duplicates data points if `-dedup.minScrapeInterval` command-line flag
@ -977,6 +982,24 @@ the query cache, which could contain incomplete data cached during the backfilli
Yet another solution is to increase `-search.cacheTimestampOffset` flag value in order to disable caching
for data with timestamps close to the current time.
### Replication
VictoriaMetrics relies on replicated durable persistent storage such as [Google Cloud disks](https://cloud.google.com/compute/docs/disks#pdspecs)
or [Amazon EBS](https://aws.amazon.com/ebs/). It is also recommended making periodic backups,
since [replication doesn't save from disaster](https://medium.com/@valyala/speeding-up-backups-for-big-time-series-databases-533c1a927883).
See [backup docs](#backups) for details.
See also [high availability docs](#high-availability) and [docs about cluster version of VictoriaMetrics](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/cluster/README.md).
### Backups
VictoriaMetrics supports backups via [vmbackup](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/app/vmbackup/README.md)
and [vmrestore](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/app/vmrestore/README.md) tools.
We also provide provide `vmbackuper` tool for paid enterprise subscribers - see [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/466) for details.
### Profiling
VictoriaMetrics provides handlers for collecting the following [Go profiles](https://blog.golang.org/profiling-go-programs):