queue size differs from messages returned by browseMessages using JMX

[Andreas Maza <an...@gmail.com>]

Hello,


I am experiencing the following issue when trying to administer my AMQ
broker remotely using JMX:

The queueSize() operation delivers the correct (expect) message count of
the queue. However, when calling browseMessages() only a subset of the
messages is returned.

This problem is not always the case, but can be observed from time to tome.
Can anybody point out what's wrong? I am running the 5.5.0 package on
Ubuntu.


Thanks in advance,
Andreas

Re: queue size differs from messages returned by browseMessages using JMX

[Timothy Bish <ta...@gmail.com>]

On Thu, 2012-04-26 at 15:35 +0200, Andreas Maza wrote: 
> Hello,
> 
> 
> I am experiencing the following issue when trying to administer my AMQ
> broker remotely using JMX:
> 
> The queueSize() operation delivers the correct (expect) message count of
> the queue. However, when calling browseMessages() only a subset of the
> messages is returned.
> 
> This problem is not always the case, but can be observed from time to tome.
> Can anybody point out what's wrong? I am running the 5.5.0 package on
> Ubuntu.
> 
> 
> Thanks in advance,
> Andreas

a browse is limited to the destination maxPageSize or maxBrowsePageSize,
both of which are configured via a destination policy. 

http://activemq.apache.org/per-destination-policies.html

So depending on the configuration browsing won't show you the actual
number of messages if that number is greater than the configured limit.

-- 
Tim Bish
Sr Software Engineer | FuseSource Corp
tim.bish@fusesource.com | www.fusesource.com
skype: tabish121 | twitter: @tabish121
blog: http://timbish.blogspot.com/