tree fd81adf4dc795530395947d2ac172a1d6e1d5ef7
parent dc963fc37b502ba1d7ee1abdef7758505a6fa3a7
author Joshua Hesketh <josh@nitrotech.org> 1455703458 +1100
committer Joshua Hesketh <josh@nitrotech.org> 1460388236 +1000

Don't reload connections on HUP

Previous to the connection work zuul wouldn't stop triggers or therefore
the gerrit watcher on reload.

Reloading the gerrit connection causes challenges for the cache
management which are currently not handled and likely affecting memory
usage.

Rather than support dynamically reloading all of zuul.conf, just reload
the layout and logging and require a full restart for connection
changes to take effect.

This isn't a feature regression as particular changes to zuul.conf
weren't previously picked up (for example, gerrit credentials).

Change-Id: Iff77fbca6ab15c9636f6ae8f12bc1bad78f79aa9