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MQSeries.net Forum Index » General IBM MQ Support » CURDEPTH problem?

CURDEPTH problem?

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GregJ

Posted: Thu Apr 17, 2003 10:38 am Post subject: CURDEPTH problem?

Acolyte

Joined: 24 Oct 2001
Posts: 69
Location: Markham, On. Canada

On a unix Queue manager i have a local queue called 'qlocal1' If i do a dis ql(*) curdepth, my queue shows a depth of 5.

Now i do an amqsbcg and all i get is 'no more messages'

When i go back to dis ql(*) curdepth it is now (0)

What up with that?
G

bower5932

Posted: Thu Apr 17, 2003 10:46 am Post subject:

Jedi Knight

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

I'd guess that you hit one of two things.

You had messages on the queue that were expired. This would allow the curdepth to display the 5. When you ran amqsbcg, MQ realized the messages were expired and threw them away. This causes your next curdepth to display the 0.

You had uncommitted messages on the queue. You attempt to browse them and can't see them because they aren't available. An application then rolled back the messages. You issued your curdepth and got the 0.

I'd guess that the messages were expired.

tillywern

Posted: Mon Apr 21, 2003 9:29 am Post subject: commit point issue.

Centurion

Joined: 28 Jan 2003
Posts: 109
Location: Colorado

Additionally the messages may not be committed yet. Uncommited units of work still register when looking at curdepth... For example messges can be placed on a queue and appear but untill the putting app has commited them they are not available to be consumed.... On the other hand a getting application could have read the messages off the queue and not commited the destructive read... In this case the messaes are there but not available to be consumed by another application.

hope this helps things be more clear.

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