System now hangs on shutdown

[jclyons]

In some rooms, particularly Judd113, the shutdown process initiated by shutdown -r now gets through shutting down the ssh daemon, but appears to hang afterwards. Thus the system never reboots. We need to figure out what's hanging up the system in the Linux shutdown process and eliminate it.

[jclyons]

turns out the problem was with RabbitMQ having to spool all the messages to disk every shut down. It would eventually shut down, but only after 10 minutes. Now that rabbitmq restarts every night the queues memory are much smaller when we need to shut down.

However, we still need to fix the problem: rabbitmq should not be taking up so much memory, there should be no persistence, and all messages should be being consumed or flushed by roomtrol.

[rchristensen]

Is this still an issue? I'm fairly sure this hasn't been behaving in this way for years.. perhaps fixed by the move to 12.04 LTS?

[bgapinski]

Yeah.. It doesn't appear to be a problem anymore. Haven't closed it yet because it's difficult to confirm.