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Live: Updated note on Live redis sentinel support (#103834)

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* Update note on Live redis sentinel support

* Add ha_engine_password and update address parameters

* style admonition

* add code inside admonition

* run prettier

---------

Co-authored-by: Irene Rodríguez <irene.rodriguez@grafana.com>
This commit is contained in:
Steven Shaw
2025-04-11 10:29:46 -07:00
committed by GitHub
parent 95f04c79cd
commit 25c84044f9
2 changed files with 12 additions and 23 deletions
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3
docs/sources/setup-grafana/configure-grafana/_index.md
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@ -2536,7 +2536,8 @@ Address string of selected the high availability (HA) Live engine. For Redis, it
```ini
[live]
ha_engine = redis
ha_engine_address = 127.0.0.1:6379
ha_engine_address: redis-headless.grafana.svc.cluster.local:6379
ha_engine_password: $__file{/your/redis/password/secret/mount}
```
<hr>

32
docs/sources/setup-grafana/set-up-grafana-live.md
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@ -223,26 +223,14 @@ After running:
- Streaming from Telegraf delivers messages to all subscribers.
- A separate unidirectional stream between Grafana and backend data source opens on different Grafana servers. Publishing data to a channel delivers messages to instance subscribers, as a result, publications from different instances on different machines do not produce duplicate data on panels.
At the moment we only support single Redis node.
{{< admonition type="note" >}}
Live currently does not support Redis Sentinel. We recommend using a Redis Cluster for high-availability via a k8s helm chart such as the Bitnami Redis chart which has values to provision a Redis Cluster. Grafana Live can then be pointed to the `redis-headless` service.
> **Note:** It's possible to use Redis Sentinel and Haproxy to achieve a highly available Redis setup. Redis nodes should be managed by [Redis Sentinel](https://redis.io/topics/sentinel) to achieve automatic failover. Haproxy configuration example:
>
> ```
> listen redis
> server redis-01 127.0.0.1:6380 check port 6380 check inter 2s weight 1 inter 2s downinter 5s rise 10 fall 2 on-marked-down shutdown-sessions on-marked-up shutdown-backup-sessions
> server redis-02 127.0.0.1:6381 check port 6381 check inter 2s weight 1 inter 2s downinter 5s rise 10 fall 2 backup
> bind *:6379
> mode tcp
> option tcpka
> option tcplog
> option tcp-check
> tcp-check send PING\r\n
> tcp-check expect string +PONG
> tcp-check send info\ replication\r\n
> tcp-check expect string role:master
> tcp-check send QUIT\r\n
> tcp-check expect string +OK
> balance roundrobin
> ```
>
> Next, point Grafana Live to Haproxy address:port.
```
live:
ha_engine: redis
ha_engine_address: redis-headless.grafana.svc.cluster.local:6379
ha_engine_password: $__file{/your/redis/password/secret/mount}
```
{{< /admonition >}}