Open Stack

On 12/27/18 8:22 PM, Thành Nguyễn Bá wrote:
> 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 
> <http://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?

It probably depends on which rabbit client library you're using to 
listen for notifications. Presumably there should be some way to 
configure it to set durable to True.

I guess the other option is to disable durable queues in the Nova 
config, but then you lose the contents of any queues when Rabbit gets 
restarted. It would be better to figure out how to make the consuming 
application configure durable queues instead.

> 
> 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 <mailto:bathanhtlu at gmail.com>
>