[jboss-jira] [JBoss JIRA] Created: (JBESB-270) JMSQueueListener doesn't manage Thread creation for the ActionProcessingPipeline i.e. can be flooded with messages

[Tom Fennelly (JIRA)]

JMSQueueListener doesn't manage Thread creation for the ActionProcessingPipeline i.e. can be flooded with messages
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                 Key: JBESB-270
                 URL: http://jira.jboss.com/jira/browse/JBESB-270
             Project: JBoss ESB
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: ESB Core
    Affects Versions: 4.0 RC1
            Reporter: Tom Fennelly
         Assigned To: Mark Little
             Fix For: 5.0


This listener receives messages from a JMS queue and spawns a new thread for the ActionProcessingPipeline instance that is created to process the message.  If you hammer this listener with messages (e.g 20 concurrent threads continually pumping messages into the in queue), you'll kill the process through running out of threads to process the messages.

The listener should manage the Threads.  Use of a Threadpool would probably take care of this for you i.e. can probably get the pool to block while waiting for a free thread to be returned to the pool.

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