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Update docs for new HA tracking

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Also shorten the description in config-example.yaml a bit.
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Florian Preinstorfer
2026-04-17 16:46:30 +02:00
committed by nblock
parent 1b6ab52f9e
commit 813eb2d733
2 changed files with 6 additions and 14 deletions
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docs/ref/routes.md
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@@ -287,16 +287,13 @@ information on auto approvers.
## High availability
Headscale has limited support for high availability routing. Multiple subnet routers with overlapping routes or multiple
exit nodes can be used to provide high availability for users. If one router node goes offline, another one can serve
the same routes to clients. Please see the official [Tailscale documentation on high
availability](https://tailscale.com/kb/1115/high-availability#subnet-router-high-availability) for details.
Headscale supports high availability routing. Multiple subnet routers with overlapping routes or multiple exit nodes can
be used to provide high availability for users. If one router node goes offline, another one can serve the same routes
to clients. Please see the official [Tailscale documentation on high
availability](https://tailscale.com/docs/how-to/set-up-high-availability#subnet-router-high-availability) for details.
!!! bug
In certain situations it might take up to 16 minutes for Headscale to detect a node as offline. A failover node
might not be selected fast enough, if such a node is used as subnet router or exit node causing service
interruptions for clients. See [issue 2129](https://github.com/juanfont/headscale/issues/2129) for more information.
This feature is enabled by default when at least two nodes advertise the same prefix. See the configuration options
`node.routes.ha` in the [configuration file](./configuration.md) for details.
## Troubleshooting