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From bwillis <bwil...@teldio.com>
Subject Re: Stomp Connection Dispatcher Fails on NPE
Date Thu, 12 Nov 2009 18:16:13 GMT

New ticket has been created for this issue :
  https://issues.apache.org/activemq/browse/AMQ-2480


Dejan Bosanac wrote:
> 
> Hi,
> 
> can you open a jira for this, so it doesn't get lost? It would be great if
> you could create a reproducible test case as well.
> 
> Cheers
> --
> Dejan Bosanac - http://twitter.com/dejanb
> 
> Open Source Integration - http://fusesource.com/
> ActiveMQ in Action - http://www.manning.com/snyder/
> Blog - http://www.nighttale.net
> 
> 
> On Thu, Nov 5, 2009 at 6:41 PM, bwillis <bwillis@teldio.com> wrote:
> 
>>
>> We have been using ActiveMQ 5.2 on Windows for about 6months with a
>> relatively low message throughput (a maximum usage 1 message every 4
>> seconds, nothing crazy) and it was working perfectly.  We have several
>> clients that connect through either an OpenWire or Stomp connection and
>> communicate through Queues.
>>
>> Several days ago I started testing higher throughput (several
>> messages/second) messaging by publishing to a Queue from an OpenWire
>> connection and consuming the message on a Stomp connection.  At some
>> point
>> there is a failure in the Dispatcher for the Stomp connection and my
>> client
>> stops receiving messages.  The OpenWire connection is unaffected and
>> continues filling the Queue.  I have since upgraded to ActiveMQ 5.3
>> because
>> there were some issues fixed related to Stomp connection, but still see
>> the
>> same issue.  The only exception that is displayed in the log is at the
>> bottom of this post.
>>
>> I'm going to continue to look for a test case to reproduce my error, but
>> in
>> the mean time thought I would poll the experts for some advice.
>>
>> Thanks,
>> Ben
>>
>> Exception in thread "ActiveMQ Connection Dispatcher: /127.0.0.1:3047"
>> java.lang.NullPointerException
>>
>>        at
>>
>> org.apache.activemq.transport.stomp.LegacyFrameTranslator.convertMessage(LegacyFrameTranslator.java:69)
>>        at
>>
>> org.apache.activemq.transport.stomp.ProtocolConverter.convertMessage(ProtocolConverter.java:594)
>>        at
>>
>> org.apache.activemq.transport.stomp.StompSubscription.onMessageDispatch(StompSubscription.java:92)
>>        at
>>
>> org.apache.activemq.transport.stomp.ProtocolConverter.onActiveMQCommand(ProtocolConverter.java:576)
>>        at
>>
>> org.apache.activemq.transport.stomp.StompTransportFilter.oneway(StompTransportFilter.java:56)
>>        at
>> org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:40)
>>        at
>>
>> org.apache.activemq.broker.TransportConnection.dispatch(TransportConnection.java:1190)
>>        at
>>
>> org.apache.activemq.broker.TransportConnection.processDispatch(TransportConnection.java:779)
>>        at
>>
>> org.apache.activemq.broker.TransportConnection.iterate(TransportConnection.java:815)
>>        at
>>
>> org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
>>        at
>>
>> org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)
>> --
>> View this message in context:
>> http://old.nabble.com/Stomp-Connection-Dispatcher-Fails-on-NPE-tp26216237p26216237.html
>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>
>>
> 
> 
> -----
> Dejan Bosanac
> 
> Open Source Integration - http://fusesource.com/
> ActiveMQ in Action - http://www.manning.com/snyder/
> Blog - http://www.nighttale.net
> 

-- 
View this message in context: http://old.nabble.com/Stomp-Connection-Dispatcher-Fails-on-NPE-tp26216237p26323635.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.


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