Hi stackers,

is there a document somewhere that talks about the deployment strategy
for high availability? There seems to be a few single point of
failures in the nova architecture -- the controller, which has the API
and the scheduler, the rabbitmq server, and the mysql server.

Google helped me to reach this thread
http://www.mail-archive.com/openstack@lists.launchpad.net/msg03516.html,
which covers the rabbitmq and mysql part, although it appears that
rabbitmq will still lose messages during failure in the setup. I'm
wondering if someone has tried to make the controller more available
during node failure? Thanks,

Yun

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