[Openstack-operators] Multiple Nova Schedulers causing failures of VM spawns
mmosesohn at mirantis.com
Wed Mar 12 07:09:11 UTC 2014
Can you describe your AMQP setup? Are you using RabbitMQ, QPID, or
ZeroMQ? What sort of HA do you have set up?
I noticed this behavior previously in Grizzly with incorrect federated
queue configuration in QPID where all schedulers would accept all nova
boot requests, then the last one marks the instance as a failure even
though it launched okay.
On Wed, Mar 12, 2014 at 2:12 AM, Aydelott, Ryan M. <ryade at mcs.anl.gov> wrote:
> We are running 3 nova schedulers against a rabbitmq cluster of 3, it would appear that only 1 of every three requests to boot a vm fail. Stopping two of the three schedulers brings us back to 100% spawn rate, whereas with all three it goes:
> Is this something that is a known good configuration to use, or should we be trying something else here (HA/VIP's). Perhaps I'm missing something obvious as well?
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