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| Maximum Uncommitted Messages |
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| duder |
 Posted: Tue Nov 19, 2002 10:26 am Post subject: Maximum Uncommitted Messages |
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Newbie
Joined: 18 Nov 2002
Posts: 7
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I ran into a problem where I received an exception while putting messages on the queue. I believe the problem lies in my setting of maximum uncommitted messages. When I set the value to 1000, I can only put 1000 messages in a single transaction. However, when I increase the value to 10000, I can only put 4000 messages in a single transaction. Also, the number of messages I can put seems to be related to the message size. Is this a valid assumption? Is there a maximum transaction size or a setting I can modify?
Thanks! |
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| mqonnet |
| Posted: Tue Nov 19, 2002 10:42 am Post subject: |
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Grand Master
Joined: 18 Feb 2002
Posts: 1114
Location: Boston, Ma, Usa.
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What platform???
What version of MQ and OS???
On some platforms there is a system wide limit on the number of messages in a UOW. You need to reconfigure it system wide. Even then, there is a limit to number of messages in one UOW. YOu cannot have say, 500,000 messages in a single UOW. From many aspects than one. And most importantly, performance wise.
As for size, i am not 100% sure. But there is some limit to that too. And it again is configurable.
Refer to systems admin guide.
Cheers
Kumar
_________________
IBM Certified WebSphere MQ V5.3 Developer
IBM Certified WebSphere MQ V5.3 Solution Designer
IBM Certified WebSphere MQ V5.3 System Administrator |
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| duder |
| Posted: Tue Nov 19, 2002 12:58 pm Post subject: |
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Newbie
Joined: 18 Nov 2002
Posts: 7
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I'm working with MQSeries 5.2 on Windows NT. Can anyone point me to the parameters I need to configure?
Thanks! |
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| nimconsult |
| Posted: Tue Nov 19, 2002 11:09 pm Post subject: |
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Master
Joined: 22 May 2002
Posts: 268
Location: NIMCONSULT - Belgium
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If you work with circular logging (which is the default), you are also limited by the total size of your log files. The default is 3+2 log files of 1Mb. This is 5 Mb. If you put 1k messages, you will generally fail after about 4000 messages, which seems to be your case.
_________________
Nicolas Maréchal
Senior Architect - Partner
NIMCONSULT Software Architecture Services (Belgium)
http://www.nimconsult.be |
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| duder |
| Posted: Thu Nov 21, 2002 11:33 am Post subject: |
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Newbie
Joined: 18 Nov 2002
Posts: 7
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I modified my log settings and this resolved my problem.
Thanks for the info! |
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