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| amqmdain to end a QM - options? |
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| PeterPotkay |
 Posted: Thu Oct 21, 2004 7:24 am Post subject: amqmdain to end a QM - options? |
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Poobah
Joined: 15 May 2001
Posts: 7722
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Does a client app that connects and then does MQOPENs / MQGETs without the FAIL_IF_QUEISCING option prevent a QM from coming down if I use amqmdain?
amqmdain end MyQM
Is that the same as endmqm -i, or endmqm -c?
My QM would not end using this command, and we had to reboot the server. Windows 2000 MQ 5.3 CSD04
My logfile for the amqmdain end MyQM throws the error:
ERROR: could not get the task list
The error logs show this all night:
| Code: |
----- amqrmrsa.c : 467 --------------------------------------------------------
10/21/2004 02:46:55
AMQ9508: Program cannot connect to the queue manager.
EXPLANATION:
The connection attempt to queue manager 'HIGIAOD1' failed with reason code
2161.
ACTION:
Ensure that the queue manager is available and operational.
----- amqrmsaa.c : 425 --------------------------------------------------------
10/21/2004 02:46:55
AMQ9999: Channel program ended abnormally.
EXPLANATION:
Channel program 'CDS.CALLIGO' ended abnormally.
ACTION:
Look at previous error messages for channel program 'CDS.CALLIGO' in the error
files to determine the cause of the failure.
----- amqrmrsa.c : 467 --------------------------------------------------------
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Using TransactionVision, I see today that the app connecting over this channel is issuing MQGETs without FAIL_IF_QUIESCING, as well as the occasional MQOPEN that is done, also without FAIL_IF_QUIESCING.
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Peter Potkay
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| JasonE |
| Posted: Fri Oct 22, 2004 2:18 am Post subject: |
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Grand Master
Joined: 03 Nov 2003
Posts: 1220
Location: Hursley
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| amqmdain end is the same as an immediate shutdown of the queue manager |
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| PeterPotkay |
| Posted: Fri Oct 22, 2004 5:48 am Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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Not that I don't trust ya, buuuuuuut, is this documented anywhere?
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Peter Potkay
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| JasonE |
| Posted: Fri Oct 22, 2004 5:52 am Post subject: |
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Grand Master
Joined: 03 Nov 2003
Posts: 1220
Location: Hursley
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No 
It was originally a controlled (normal) shutdown, but had to be changed to immediate because you cant stop an operating system shutdown indefinitely, and we need to stop the qmgrs during an os shutdown |
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| PeterPotkay |
| Posted: Thu Jan 20, 2005 3:17 pm Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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So, IBM confirmed that amqmdain acts like a Controlled shutdown, and there is no way to make it act like endmqm -i. I opened up a request for adding this option, and got the following response:
>>amqmdain should support an immediate (not just controlled) shutdown of the QM
Accepted- IBM agrees with the request and a solution is desirable and feasible. IBM intends to provide a solution. However, IBM's plans may change, and no commitment is made that a solution will be provided.
But, I still wonder why my Client Concentrator takes sooooooooo long to end if I use amqmdain end. On the QM where there are few clients connected, it comes down in about a minute. On the QM that has a couple of hundred of clients connected, it takes 45 minutes !!! And all 3 error logs (at 1MEG each) are filled with errors saying the channels are ending, that QM is ending, etc.
I really would like to be able to bring this Windows QM down every night. What I don't understand is why does the QM take so long to end. Could it be the barrage of reconnect attempts?
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Peter Potkay
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| PeterPotkay |
| Posted: Thu Jan 20, 2005 5:26 pm Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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Neil on the listserver suggested I use endmqm -i to end the QM, and then use amqmdain to start it up so it runs as a Service.
Using endmqm -i QM1, the QM, channel init and command server did come down, but the listener was left running. So I then issued endmqlsr -m QM1, and the listener ended.
amqmdain then was able to start the QM back up, and the channel init command server and the listener started up.
I have always been told never to mix the command line commands with amqmdain/MQServices, but this seems OK.
Until amqmdain supports -i, is this a safe way to do it?
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Peter Potkay
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