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MQSeries.net Forum Index » IBM MQ Java / JMS » why the queues are often hanging

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wschutz
PostPosted: Wed Nov 02, 2005 2:49 am    Post subject: Reply with quote

Jedi Knight

Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)
Quote:
Our system received a message which throws a exception error and it's been kept throwing back to the queue for the system to reprocess it.
Technically, we would call this a poisoned message. Your application should check the "backoutcount" in the message descriptor and if its greater than some small number, place the message on an application specific dead letter queue.

There are two fields on the queue itself that can be used by the application program (bothreshold and boqname) to "externalize" these settings. Your program whould have to issue an MQINQ to get these values from the queue.

Have fun.
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-wayne
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bower5932
PostPosted: Wed Nov 02, 2005 7:39 am    Post subject: Reply with quote

Jedi Knight

Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA
Go to:

http://www.developer.ibm.com/isv/tech/sampmq.html

and search the page for backout. You'll find a C and java version of a sample program.
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