mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-21 07:56:26 +01:00
84 lines
4.1 KiB
Markdown
84 lines
4.1 KiB
Markdown
|
# Multi-regional setup with VictoriaMetrics: Dedicated regions for monitoring
|
||
|
|
|
||
|
|
### Scenario
|
||
|
|
|
||
|
|
Let's cover the case. You have multiple regions with workloads and want to collect metrics.
|
||
|
|
|
||
|
|
The monitoring setup is in the dedicated regions as shown below:
|
||
|
|
|
||
|
|
<p align="center">
|
||
|
|
<img
|
||
|
|
src="multi-regional-setup-dedicated-regions.png"
|
||
|
|
width="800"
|
||
|
|
alt="Multi-regional setup with VictoriaMetrics: Dedicated regions for monitoring">
|
||
|
|
</p>
|
||
|
|
|
||
|
|
Every workload region (Earth, Mars, Venus) has a vmagent that sends data to multiple regions with a monitoring setup.
|
||
|
|
The monitoring setup (Ground Control 1,2) contains VictoriaMetrics Time Series Database(TSDB) cluster or single.
|
||
|
|
|
||
|
|
Using this schema, you can achieve:
|
||
|
|
|
||
|
|
* Global Querying View
|
||
|
|
* Querying all metrics from one monitoring installation
|
||
|
|
* High Availability
|
||
|
|
* You can lose one region, but your experience will be the same.
|
||
|
|
* Of course, that means you duplicate your traffic twice.
|
||
|
|
|
||
|
|
### How to write the data to Ground Control regions
|
||
|
|
|
||
|
|
* You need to specify two remote write URLs in vmagent configuration
|
||
|
|
|
||
|
|
```bash
|
||
|
|
/vmagent-prod
|
||
|
|
-remoteWrite.url=<ground-control-1-remote-write>
|
||
|
|
-remoteWrite.url=<ground-control-2-remote-write>
|
||
|
|
```
|
||
|
|
|
||
|
|
* If you use the Pull model for data collection, please specify -promscrape.config parameter as well
|
||
|
|
|
||
|
|
Here is a Quickstart guide for [vmagent](https://docs.victoriametrics.com/vmagent.html#quick-start)
|
||
|
|
|
||
|
|
### How to read the data from Ground Control regions
|
||
|
|
|
||
|
|
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.
|
||
|
|
2. Load balancer - that sends queries to a particular region. The benefit and disadvantage of this setup is that it's simple.
|
||
|
|
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).
|
||
|
|
4. Global vmselect in cluster setup - you can set up an additional subset of vmselects that knows about all storages in all regions.
|
||
|
|
* The 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.
|
||
|
|
|
||
|
|
|
||
|
|
### High Availability
|
||
|
|
|
||
|
|
The data is duplicated twice, and every region contains a full copy of the data. That means one region can be offline.
|
||
|
|
|
||
|
|
You don't need to set up a replication factor using the VictoriaMetrics cluster.
|
||
|
|
|
||
|
|
### Alerting
|
||
|
|
|
||
|
|
You can set up vmalert in each Ground control region that evaluates recording and alerting rules. As every region contains a full copy of the data, you don't need to synchronize recording rules from one region to another.
|
||
|
|
|
||
|
|
For alert deduplication, please use [cluster mode in Alertmanager](https://prometheus.io/docs/alerting/latest/alertmanager/#high-availability).
|
||
|
|
|
||
|
|
We also recommend adopting these alerts:
|
||
|
|
|
||
|
|
* VictoriaMetrics Single - [https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/alerts.yml](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/alerts.yml)
|
||
|
|
* VictoriaMetrics Cluster - [https://github.com/VictoriaMetrics/VictoriaMetrics/blob/cluster/deployment/docker/alerts.yml](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/cluster/deployment/docker/alerts.yml)
|
||
|
|
|
||
|
|
### Monitoring
|
||
|
|
|
||
|
|
An additional VictoriaMetrics single can be set up in every region, scraping metrics from the main TSDB.
|
||
|
|
|
||
|
|
You also may evaluate the option to send these metrics to the neighbour region to achieve HA.
|
||
|
|
|
||
|
|
Additional context
|
||
|
|
* VictoriaMetrics Single - [https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#monitoring](https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#monitoring)
|
||
|
|
* VictoriaMetrics Cluster - [https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#monitoring](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#monitoring)
|
||
|
|
|
||
|
|
|
||
|
|
### What more can we do?
|
||
|
|
|
||
|
|
Setup vmagents in Ground Control regions. That allows it to accept data close to storage and add more reliability if storage is temporarily offline.
|