Comment 8 for bug 1289200

The support for Rabbit heartbeat was reverted: https://review.openstack.org/#/c/36606/. With kombu you have to call heartbeat_check() once per second. Without a thread calling that function your connections will all die after heartbeat seconds.

The kombu reconnect changes here: https://review.openstack.org/#/c/76686/ along with the CCN changes are already in our packages. The config changes to rabbit here: https://bugs.launchpad.net/oslo.messaging/+bug/856764/comments/19 sound helpful though and are worth testing.