[rabbitmq-discuss] Cluster and nodes shutdown: not_found, "no queue 'XXXX' in vhost 'YYY'", 'queue.declare'

[Tiago Cruz]

Hello all!

I'm using  rabbitMQ 2.6.1's mirror queue without 'x-ha-policy' (yet!), and
I just found a weird situation.

I'm using keepalived to exchange IP address from clients, and my queues are
"Durable=True"

====
[root at qwar1 ~]# rabbitmqctl cluster_status
Cluster status of node rabbit at qwar1 ...
[{nodes,[{disc,[rabbit at qwar2,rabbit at qwar1]}]},
 {running_nodes,[rabbit at qwar2,rabbit at qwar1]}]
...done.

[root at qwar2 ~]# rabbitmqctl cluster_status
Cluster status of node rabbit at qwar2 ...
[{nodes,[{disc,[rabbit at qwar2,rabbit at qwar1]}]},
 {running_nodes,[rabbit at qwar1,rabbit at qwar2]}]
...done.
====

All my queues are created on node _qwc1_, how you can see here:

====
[root at qwar1 ~]# rabbitmqctl report
...
Consumers on encoder:
queue_name      channel_pid     consumer_tag    ack_required
videos  <rabbit at qwar1.3.2926.0> amq.ctag-7FoHaypQdRWWanL5CYjXug==       true
sender  <rabbit at qwar1.3.26415.0>
amq.ctag-6YYXJJxU/LsoGFpBTn47FA==       true
...

[root at qwar2 ~]# rabbitmqctl report
...
Consumers on encoder:
queue_name      channel_pid     consumer_tag    ack_required
videos  <rabbit at qwar1.3.2926.0> amq.ctag-7FoHaypQdRWWanL5CYjXug==       true
sender  <rabbit at qwar1.3.26415.0>
amq.ctag-6YYXJJxU/LsoGFpBTn47FA==       true
...
====

If I shutdown the _qwc2_ everything works as well.

If I shutdown the _qwc1_ the cluster stop to work, and I got this errors
messages on log:

=ERROR REPORT==== 30-Nov-2011::16:34:36 ===
connection <0.734.0>, channel 4 - error:
{amqp_error,not_found,"no queue 'videos' in vhost
'encoder'",'queue.declare'}

=ERROR REPORT==== 30-Nov-2011::16:34:36 ===
connection <0.734.0>, channel 5 - error:
{amqp_error,not_found,"no queue 'videos' in vhost
'encoder'",'queue.declare'}

=ERROR REPORT==== 30-Nov-2011::16:30:26 ===
connection <0.5263.0>, channel 1 - error:
{amqp_error,not_found,"no queue 'sender' in vhost
'encoder'",'queue.declare'}

=ERROR REPORT==== 30-Nov-2011::16:30:27 ===
connection <0.5263.0>, channel 1 - error:
{amqp_error,not_found,"no queue 'sender' in vhost
'encoder'",'queue.declare'}

When the node qwc1 turn back to live, everything works as well.

If, before the shutdown, I delete the queue 'videos' and 'sender',
everything works as well.

Is the behaviour correct? I thought that everything was still working as
well even with a crash of one of nodes of cluster :)

Thanks a lot,

Tiago Cruz
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