[Openstack-operators] rsyslog update caused services to break?

Francois Deppierraz francois at ctrlaltdel.ch
Mon Oct 13 09:05:34 UTC 2014

Hi Joe,

Yes, same problem here running Ubuntu 14.04.

The symptom is nova-api, nova-conductor and glance-api eating all CPU
without responding to API requests anymore.

It is possible to reproduce it thanks to the following script.



On 11. 10. 14 00:40, Joe Topjian wrote:
> Hello,
> This morning we noticed various nova, glance, and keystone services (not
> cinder or swift) not working in two different clouds and required a restart.
> We thought it was a network issue since one of the only commonalities
> between the two clouds was that they are on the same network.
> Then later in the day I logged into a test cloud on a totally separate
> network and had the same problem. 
> Looking at all three environments, the commonality is now that they have
> Ubuntu security updates automatically applied in the morning and this
> morning rsyslog was patched and restarted.
> I found this oslo bug that kind of sounds like the issue we saw:
> https://bugs.launchpad.net/oslo.log/+bug/1076466
> Doing further investigation, log files do indeed show a lack of entries
> for various services/daemons until they were restarted.
> Has anyone else run into this? Maybe even this morning, too? :)
> Thanks,
> Joe
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> OpenStack-operators at lists.openstack.org
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