Comment 2 for bug 1285449
Revision history for this message
| Dmitry Borodaenko (angdraug) wrote Re: Moving management vip breaks rabbitmq sessions | #2 |
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One of the typical scenarios is nova-compute keeping its RabbitMQ connection and sending service_update messages to nova-conductor, but nova-conductor not receiving them and marking the nova-compute services as down. When that happens, restarting nova-conductor fixes it. Similar case with cinder-volume and cinder-scheduler, which is likely what causes the symptom in the original bug description.
Reconfiguring services to bypass HAProxy and talk directly to the management IP of one of the controller nodes makes that service unaffected by this problem (except that other services that still are tied to HAProxy e.g. keystone or neutron remain affected and something doesn't work).