[Openstack-operators] RabbitMQ issues since upgrading to Icehouse

Abel Lopez alopgeek at gmail.com
Tue Sep 2 20:28:02 UTC 2014

What release were you running before Icehouse?
I’m curious if you purged/deleted queues during the upgrade.
Might be useful to start fresh with your rabbit, like completely trash your mensia during a maintenance window (obviously with your services stopped) so they recreate the queues at startup.
Also, was kombu upgraded along with your openstack release?

On Aug 25, 2014, at 4:17 PM, Sam Morrison <sorrison at gmail.com> wrote:

> Hi,
> Since upgrading to Icehouse we have seen increased issues with messaging relating to RabbitMQ.
> 1. We often get reply_xxxxxx queues starting to fill up with unacked messages. To fix this we need to restart the offending service. Usually nova-api or nova-compute.
> 2. If you kill a node so as to force an *ungraceful* disconnect of rabbit the connection “object?” still sticks around in rabbit. Starting the service again means there are now 2 consumers. The new one and the phantom old one. This then leads to messages piling up in the unacked queue. This feels like a rabbit bug to me but just thought I’d mention it here too.
> We have have a setup that includes icehouse computes and havana computes in the same cloud and we only see this on the icehouse computes. This is using Trusty and RabbitMQ 3.3.4
> Has anyone seen anything like this too?
> Thanks,
> Sam
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