[rabbitmq-discuss] Messages ready and not delivered

Emile Joubert emile at rabbitmq.com
Fri Aug 12 17:18:38 BST 2011

Hi Andrea,

On 12/08/11 17:04, Rosa, Andrea wrote:

>> Are you sure the queue contains messages? What does "rabbitmqctl
>> list_queues name messages_ready messages_unacknowledged consumers"
>> return?
> The unack messages is equal to 0 but there are some ready messages in the queues 

And the last "consumers" column? How many consumers does the broker
think are subscribed? If the client receives messages asynchronously
then the number should be 1 or greater.

Something else to check is whether the consumer has asserted channel
flow. That will prevent the broker from delivering messages on the
channel. You can confirm this with
"rabbitmqctl list_channels client_flow_blocked"


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