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| How to show number of uncommited messages |
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| karstenj |
 Posted: Fri Aug 23, 2002 4:24 am Post subject: How to show number of uncommited messages |
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Newbie
Joined: 23 Aug 2002
Posts: 4
Location: Denmark
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Hi,
is there a way to show the number of uncommitted messages on a queue or queuemanager ?
I have an application that gets messages of a queue but dosn't commit the get. When the application terminates, mq restores the queue.
The application has been fixed, but I would like to be able to detect this later on.
Regards
Karsten |
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| Glen Shubert |
| Posted: Fri Aug 23, 2002 6:17 am Post subject: |
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Apprentice
Joined: 16 May 2001
Posts: 42
Location: TSYS - Columbus, GA
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You can do a DIS QMGR ALL command. Then the MAXUMSGS parameter will show what it is set to.
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Glen Shubert
Associate Director
MQSeries Technical Support
TSYS |
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| bob_buxton |
| Posted: Fri Aug 23, 2002 6:26 am Post subject: |
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Master
Joined: 23 Aug 2001
Posts: 266
Location: England
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MaxUncommitedMsgs is the maximum number allowed within a Unit Of Work.
I don't think anything shows how many are currently uncommited since the number could change faster than the data could be collected.
Bob
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Bob Buxton
Ex-Websphere MQ Development |
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| bduncan |
| Posted: Fri Aug 23, 2002 8:52 am Post subject: |
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Padawan
Joined: 11 Apr 2001
Posts: 1554
Location: Silicon Valley
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I believe there is a way, although I think it would only work with local queues. Basically, the 'dis ql(xxx) curdepth' command in runmqsc will show the depth of the queue, both committed and non-committed messages. If your application is doing MQGETs from this queue under syncpoint, you can use system() calls (in C, perl, etc) to execute runmqsc, and obtain the number of messages on the queue. Then you can run a MQINQ command to determine the queue depth (in this case, only committed messages). Compare the two values, and the difference should be the number of messages you have removed with MQGETs but haven't committed yet.
Keep in mind this will only work with local queues, and only those queues for which a single application is getting or putting messages. Obviously multiple applications each with units of work against the queue make this method useless...
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Brandon Duncan
IBM Certified MQSeries Specialist
MQSeries.net forum moderator |
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| karstenj |
| Posted: Sat Aug 24, 2002 3:41 am Post subject: |
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Newbie
Joined: 23 Aug 2002
Posts: 4
Location: Denmark
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the thing is that you can actually get the message of the queue and all other applications will see the curdepth without that message. If an error causes the app that is not committing the queues will be restored. It would be nice for monitoring and debugging purposes to be able to see the amount of pending work.
Maybe it can be found somehow using mqinq ? Do you know of any monitoring tool that can show this ? |
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