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From "Dip Narayan Sarkar (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-2994) Topic (non-durable) gets unsubscribed even though the TCP connections to Active MQ are alive (observed on Windows 2008 server)
Date Thu, 21 Oct 2010 12:32:40 GMT
Topic (non-durable)  gets unsubscribed even though the TCP connections to Active MQ are alive
(observed on Windows 2008 server)
-------------------------------------------------------------------------------------------------------------------------------

                 Key: AMQ-2994
                 URL: https://issues.apache.org/activemq/browse/AMQ-2994
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.2.0
         Environment: Windows 2008 server (Enterprise edition)
            Reporter: Dip Narayan Sarkar


In the concerned product, one Web Application deployed on Tomcat server  does non-durable
subscription to topics to Active MQ.
Both Active MQ and Tomcat are running on WIndows 2008 server (Enterprise edition)

On one of the 2008 servers, it is seen that one topic subscribed by Tomcat got "UNSUBSCRIBED"
even though the tcp connections from Tomcat to Active MQ are alive. The messages published
by the corresponding topic is about 15 - 20 per minute.  Tomcat logs DO NOT have any relevant
exception trace.
Neither there are any exception traces in ActiveMQ logs

The system has been running for 15 days. On 16th day we found that the JMS messages are not
reaching the Web App, upon debugging process thru JConsole, we found that the Tomcat's subscription
are not present.
This happened for the 2nd time on a Win 2008 server.

Same code base is running fine for > 25 days (with larger flux of messages) on more than
one Win 2003 servers.

Need some pointers on possible root causes and if any known issues are present.



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