Hi,
For those who are tracking master: we ran into some issues recently that required changes to how we store objects in ZooKeeper. If you have run recent commits of Zuul from master and upgrade, you may run into issues starting Zuul because of the change in data format (it may manifest as a crash on startup with a KeyError or something similar). If you do so, run this command to delete the ephemeral data from ZooKeeper:
zuul delete-state
That will delete all the cached data, job requests, etc, but leave Nodepool and secret key storage intact. It may take a few minutes to run, and the next time you start your scheduler it may take a little longer.
Friendly reminder that if you encounter any ZooKeeper-related errors, this command is always there as an escape hatch.
-Jim