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From drsnyder <s...@dsnyder.com>
Subject MessageQueueServlet and Topic Subscription Buildup?
Date Fri, 05 Mar 2010 00:46:41 GMT

I am using the MessageQueueServlet and after a while, the broker is becoming
non-responsive (no errors in the logs, but cpu spins up to 100%)When looking
at the mbeans, I noticed that a new topic subscription shows up for *every*
request under:

Subscription->Non-Durable->Topic->topic_//ActiveMQ.Advisory.TempQueue_topic_//ActiveMQ.Advisory.TempTopic

In addition, I am warnings in the logs for every message posted like this:

WARN  BrokerRegistry                 - Broker localhost not started so using
skaro instead

In context:

DEBUG log                            - servlet holder=MessageQueueServlet
DEBUG log                            - call filter session
DEBUG log                            - call servlet MessageQueueServlet
DEBUG MessageServletSupport          - destination
uri=edw.report.edw.report.loadtest
DEBUG MessageServletSupport          -
edw.report.edw.report.loadtest?consumer.prefetchSize=1 (queue)
WARN  BrokerRegistry                 - Broker localhost not started so using
skaro instead
DEBUG TransportConnection            - Setting up new connection:
vm://localhost#1998
DEBUG AbstractRegion                 - Adding consumer:
ID:skaro-33505-1267748807277-2:999:-1:1

I have changed all references in all configs to reference "skaro" and not
localhost, so I'm not sure where this is coming from.

Could these be related?  Is the topic subscription build-up something to be
concerned about?  It looks to me like the MessageQueueServlet may be setting
up a new vm://localhost connection every time and maybe that triggers the
advisory subscription.  Any other ideas?

Thanks for any help,
David Snyder
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