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| Concurrent Problem? |
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| xyzcom1983 |
 Posted: Sun Feb 04, 2007 7:44 pm Post subject: Concurrent Problem? |
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Newbie
Joined: 04 Feb 2007
Posts: 7
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Hello all,
I have used muti-thread to connect to the websphere MQ
If I used about 80 threads, after about 30 minutes, MQ throw problem 2059, and if I used 120 threads, problem 2009 will appear in five minutes and problem 2059 will appear in about ten minutes. After the problems throwed, my program can run, but some threads has intercepted!
I have already test my program, one thread has no problem.
I think maybe MQ has the limit of thread numbers, any suggestions? Thank you |
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| xyzcom1983 |
| Posted: Sun Feb 04, 2007 11:30 pm Post subject: |
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Newbie
Joined: 04 Feb 2007
Posts: 7
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I know the problems. Becasue I have many threads, and each thread will disconnect the QManager, so MQ will throw 2059 and 2009
Now I want any suggestions about muti-thread for use QManager.
Did I need a connection pool when I connect and disconnect to the QManager or I should only use singleton QManager for about 80 threads |
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| fjb_saper |
| Posted: Mon Feb 05, 2007 3:38 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Depending on the usage you plan for the qmgr you might want to look at max active connections. Using pooling is a good idea any time and a must with J2EE JMS.
Enjoy 
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MQ & Broker admin |
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| andy840920 |
| Posted: Thu May 10, 2007 3:36 am Post subject: |
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Apprentice
Joined: 29 Apr 2007
Posts: 44
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| xyzcom1983 wrote: |
I know the problems. Becasue I have many threads, and each thread will disconnect the QManager, so MQ will throw 2059 and 2009
Now I want any suggestions about muti-thread for use QManager.
Did I need a connection pool when I connect and disconnect to the QManager or I should only use singleton QManager for about 80 threads |
it's differency between multi-thread with multi-process? my program use fork to make child process and MQCONNX, DISCONN the QManager in it. but sometimes MQCONNX ended with 2059. how to change the limit of the connection? |
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| marcin.kasinski |
| Posted: Thu May 10, 2007 4:59 am Post subject: |
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Sentinel
Joined: 21 Dec 2004
Posts: 850
Location: Poland / Warsaw
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| andy840920 wrote: |
| how to change the limit of the connection? |
There is MAXHANDS attribute of QMGR.
_________________
Marcin |
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