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Alerting: Document Grafana 8 High Availability setup (#41503)

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* Alerting: Document Grafana 8 High Availability setup

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Co-authored-by: Yuriy Tseretyan <tceretian@gmail.com>

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Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>

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Co-authored-by: George Robinson <george.robinson@grafana.com>

* Update docs/sources/alerting/unified-alerting/high-availability.md

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Co-authored-by: Yuriy Tseretyan <tceretian@gmail.com>
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
Co-authored-by: George Robinson <george.robinson@grafana.com>
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gotjosh
2021-11-12 18:47:39 +00:00
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co-authored by Yuriy Tseretyan achatterjee-grafana George Robinson
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docs/sources/administration/set-up-for-high-availability.md
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@@ -22,7 +22,15 @@ Grafana will now persist all long term data in the database. How to configure th
## Alerting
Currently alerting supports a limited form of high availability. [Alert notifications]({{< relref "../alerting/old-alerting/notifications.md" >}}) are deduplicated when running multiple servers. This means all alerts are executed on every server but alert notifications are only sent once per alert. Grafana does not support load distribution between servers.
**Grafana 8 alerts**
Grafana 8 Alerts provides a new highly-available model under the hood. It preserves the previous semantics by executing all alerts on every server and notifications are sent only once per alert. There is no support for load distribution between servers at this time.
For configuration, [follow the guide]({{ relref "../alerting/unified-alerting/high-availability.md" >}}).
**Legacy dashboard alerts**
Legacy Grafana alerting supports a limited form of high availability. [Alert notifications]({{< relref "../alerting/old-alerting/notifications.md" >}}) are deduplicated when running multiple servers. This means all alerts are executed on every server but alert notifications are only sent once per alert. Grafana does not support load distribution between servers.
## Grafana Live