[neutron][ops] API for viewing HA router states

Fabian Zimmermann dev.faz at gmail.com
Mon Aug 17 13:54:31 UTC 2020


I can just tell you that we are doing a similar check for dhcp-agent, but
here we just execute a suitable SQL-statement to detect more than 1 agent /

Doing the same for L3 shouldn't be that hard, but I dont know if this is
what you are looking for?


Am Mo., 17. Aug. 2020 um 14:11 Uhr schrieb Mohammed Naser <
mnaser at vexxhost.com>:

> Hi all,
> Over the past few days, we were troubleshooting an issue that ended up
> having a root cause where keepalived has somehow ended up active in
> two different L3 agents.  We've yet to find the root cause of how this
> happened but removing it and adding it resolved the issue for us.
> As we work on improving our monitoring, we wanted to implement
> something that gets us the info of # of active routers to check if
> there's a router that has >1 active L3 agent but it's hard because
> hitting the /l3-agents endpoint on _every_ single router hurts a lot
> on performance.
> Is there something else that we can watch which might be more
> productive?  FYI -- this all goes in the open and will end up inside
> the openstack-exporter:
> https://github.com/openstack-exporter/openstack-exporter and the Helm
> charts will end up with the alerts:
> https://github.com/openstack-exporter/helm-charts
> Thanks!
> Mohammed
> --
> Mohammed Naser
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