this seams like it similar to https://bugs.launchpad.net/nova/+bug/1825584 but it could also just be an intermitent connection issue to rabbitmq in your envionment.
this to me is not really poingint to an issue with nova so likely this should be filed agains oslo msesaging if there is a bug
have you tried setting [oslo_messaging_rabbit] heartbeat_in_pthread=true in the nova.conf used by nova api
this seams like it similar to https:/ /bugs.launchpad .net/nova/ +bug/1825584
but it could also just be an intermitent connection issue to rabbitmq in your envionment.
this to me is not really poingint to an issue with nova so likely this should be filed agains oslo msesaging if there is a bug
have you tried setting _rabbit] in_pthread= true in the nova.conf used by nova api
[oslo_messaging
heartbeat_