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MQSeries.net Forum Index » IBM MQ Performance Monitoring » MQ queues clogs with too many requests

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ncs
PostPosted: Wed Jan 05, 2005 3:46 am    Post subject: MQ queues clogs with too many requests Reply with quote

Newbie

Joined: 05 Jan 2005
Posts: 1
We are using WebSphere MQ 5.2 and WebSphere Application Server 3.5.3. We see that sometimes the MQ requests (messages) that we send do not get served and the messages keeps piling up in the queues. So after regular intervels, we have to go to the respective queues and delete all pending messages.

Is there any way we can get around this? Since we are new to this technology, we feel that there could be some solutions that we are not aware of.
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jefflowrey
PostPosted: Wed Jan 05, 2005 6:02 am    Post subject: Reply with quote

Grand Poobah

Joined: 16 Oct 2002
Posts: 19981
If you are new to this technology, why are you using such outdated versions?

It's probably a bug in your code.
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I am *not* the model of the modern major general.
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zpat
PostPosted: Wed Jan 05, 2005 6:44 am    Post subject: Reply with quote

Jedi Council

Joined: 19 May 2001
Posts: 5866
Location: UK
Where replies are retrieved by Msgid or Correlid, they should be put on the queue as non-persistent and with an EXPIRY value set in the MQMD.

Then all you need do is arrange for expired messages to be removed periodically (this is a bit of a subject in itself and I am sure has threads about it here).

However "orphaned" messages should be the exception and not the norm, make sure the MQGET uses WAIT for a reaonable interval to give the reply message a chance to arrive.
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