Dear all, I have a problem when use 'notification listener' oslo-message for HA Openstack. It raise 'oslo_messaging.exceptions.MessageDeliveryFailure: Unable to connect to AMQP server on 172.16.4.125:5672 after inf tries: Exchange.declare: (406) PRECONDITION_FAILED - inequivalent arg 'durable' for exchange 'nova' in vhost '/': received 'false' but current is 'true''. How can i fix this?. I think settings default in my program set 'durable' is False so it can't listen RabbitMQ Openstack? This is my nova.conf > http://paste.openstack.org/show/738813/ And section [oslo_messaging_rabbit] [oslo_messaging_rabbit] > rabbit_ha_queues = true > rabbit_retry_interval = 1 > rabbit_retry_backoff = 2 > amqp_durable_queues= true *Nguyễn Bá Thành* *Mobile*: 0128 748 0391 *Email*: bathanhtlu at gmail.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-discuss/attachments/20181228/d4811c8f/attachment.html>