# Buildbot runbook

Our buildbot instance has a habit of breaking due to excess load.

## Restarting the worker

If the worker (primary, handling nix evaluations) explodes, it can be restarted.

`ssh root@buildbot.lix.systems 'systemctl restart buildbot-worker.service'`

## Re-trying spurious CI failures

Those with the relevant permissions can click the "rebuild" button on a given CI job, but in order to count for Gerrit's checks and set the Verified +1 flag, you must restart **the top-level `lix/nix-eval` job**; restarting e.g. a single test or build will not affect things on the Gerrit side.