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From Gordon Sim <g...@redhat.com>
Subject Re: what does the producer client do if the queue in a qpid cluster is full?
Date Thu, 04 Jun 2009 12:23:19 GMT
Shan Wang wrote:
> Hi,
> If the queue to which the producer connected is full, what would the
> producer do? Will it just drop the message or buffer it for a while.

It will depend on the policy set. The default policy for a temporary 
queue (for all queues if no store plugin is loaded) is to simply reject 
new messages (which will end the producers session).

The default for durable queues is to write new messages to disk (whether 
or not the message itself is marked persistent) and then release the 
contents from memory to be loaded again for delivery to a subscriber.

> Is
> the behaviour going to be the same as the queue is shutdown? We've had a
> performance issue with a c++ producer client when the broker is
> complaining full capacity. So I wonder if a full queue will make the
> producer exceptionally busy or consuming large memory.
> Thanks,
> Shan
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