update multi-region guide, specify multi-level vmselect option (#3039)

* update multi-region guide, specify multi-level vmselect option

Signed-off-by: Artem Navoiev <tenmozes@gmail.com>

* add more references

* Apply suggestions from code review

Signed-off-by: Artem Navoiev <tenmozes@gmail.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
This commit is contained in:
Artem Navoiev 2022-08-30 12:26:23 +03:00 committed by GitHub
parent eb9098ce12
commit 5d4b1bc742
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23

View file

@ -42,11 +42,14 @@ Here is a Quickstart guide for [vmagent](https://docs.victoriametrics.com/vmagen
You can use one of the following options: You can use one of the following options:
1. Regional endpoints - use one regional endpoint as default and switch to another if there is an issue. 1. Multi-level [vmselect setup](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#multi-level-cluster-setup) in cluster setup, top-level vmselect(s) reads data from cluster-level vmselects
2. Load balancer - that sends queries to a particular region. The benefit and disadvantage of this setup is that it's simple. * Returns data in one of the clusters is unavailable
3. Promxy - proxy that reads data from multiple Prometheus-like sources. It allows reading data more intelligently to cover the region's unavailability out of the box. It doesn't support MetricsQL yet (please check this issue). * Merges data from both sources. You need to turn on [deduplication](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#deduplication) to remove duplicates
4. Global vmselect in cluster setup - you can set up an additional subset of vmselects that knows about all storages in all regions. 2. Regional endpoints - use one regional endpoint as default and switch to another if there is an issue.
* The deduplication in 1ms on the vmselect side must be turned on. This setup allows you to query data using MetricsQL. 3. Load balancer - that sends queries to a particular region. The benefit and disadvantage of this setup is that it's simple.
4. Promxy - proxy that reads data from multiple Prometheus-like sources. It allows reading data more intelligently to cover the region's unavailability out of the box. It doesn't support MetricsQL yet (please check this issue).
5. Global vmselect in cluster setup - you can set up an additional subset of vmselects that knows about all storages in all regions.
* The [deduplication](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#deduplication) in 1ms on the vmselect side must be turned on. This setup allows you to query data using MetricsQL.
* The downside is that vmselect waits for a response from all storages in all regions. * The downside is that vmselect waits for a response from all storages in all regions.