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Designate tooz coordinator is a spof
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Description

Currently the [coordination] backend_url config setting in designate.conf refers to a single memcached server. Coordination will break if that host is down.

I'm not sure what we're coordinating or how important this is, but we should make a nutcracker cluster out of all the designate hosts to remove this spof.

Event Timeline

Change 588426 had a related patch set uploaded (by Andrew Bogott; owner: Andrew Bogott):
[operations/puppet@production] Designate: remove the coordination_host param

https://gerrit.wikimedia.org/r/588426

Change 588426 merged by Andrew Bogott:
[operations/puppet@production] Designate: remove the coordination_host param

https://gerrit.wikimedia.org/r/588426

Andrew claimed this task.

This is done, there's now a mcrouter pool for this.