Hello,
Recently I encountered an interesting issue - nova-compute service started to temporarily lose Rabbit connectivity to regain it after a few seconds on Antelope. The issue was replicated on the test environment, without specific steps to replicate though - it just starts to happen after some time.
I pasted a log example in the bug I opened [1].
First we can see rabbit logging closing AMQP connection, followed by nova-compute reporting rabbit server being unreachable, with next message being successful reconnection. Restarting nova-compute services helps temporarily, the issue starts to manifest after a few days.
Initially disconnects once every few hours, each time in shorter intervals, to the point it happens every minute or so.
Did anyone encounter something similar?