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| DeadHead |
 Posted: Tue Jan 09, 2007 6:59 am Post subject: Gracefully stopping Java MQ app |
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Novice
Joined: 28 Sep 2006
Posts: 12
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'Lo all,
I have a Java app running on an iSeries or AS400 that reads from a MQ queue and writes to an iSeries dataQ. Works fine, question is, how can I bring it down "gracefully" or cleanly? Any ideas or comments would be appreciated... Thanks. 
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| jefflowrey |
| Posted: Tue Jan 09, 2007 7:01 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Code it to quit when the queue is empty, or code it to accept a special shutdown message. Search here for Feedback codes.
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| DeadHead |
| Posted: Tue Jan 09, 2007 8:05 am Post subject: |
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Novice
Joined: 28 Sep 2006
Posts: 12
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| jefflowrey wrote: |
| Code it to quit when the queue is empty, or code it to accept a special shutdown message. Search here for Feedback codes. |
Do you mean to just send a "special" message through the MQ queue and check for it. When it is read, then close and disconnect? Thanks... 
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| Vitor |
| Posted: Tue Jan 09, 2007 8:08 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| DeadHead wrote: |
| Do you mean to just send a "special" message through the MQ queue and check for it. When it is read, then close and disconnect? Thanks... |
Exactly so. It is one of the traditional methods.
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| DeadHead |
| Posted: Tue Jan 09, 2007 8:12 am Post subject: Thanks jefflowrey & Vitor for you time & help... |
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Joined: 28 Sep 2006
Posts: 12
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| RogerLacroix |
| Posted: Tue Jan 09, 2007 10:20 am Post subject: Re: Gracefully stopping Java MQ app |
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Jedi Knight
Joined: 15 May 2001
Posts: 3264
Location: London, ON Canada
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| DeadHead |
| Posted: Tue Jan 09, 2007 12:03 pm Post subject: |
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Novice
Joined: 28 Sep 2006
Posts: 12
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Thank you Roger. Thanks to all of you...
PS You need some "new" Emoticons with an "attitude"....
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| jefflowrey |
| Posted: Tue Jan 09, 2007 12:05 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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| jsware |
| Posted: Wed Jan 10, 2007 5:21 am Post subject: Re: Gracefully stopping Java MQ app |
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Chevalier
Joined: 17 May 2001
Posts: 455
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| RogerLacroix (on the other thread) wrote: |
MQ Best Practice for terminating a Get Wait Forever.
A thread / program / whatever, puts an empty message on the queue with the MQMD's Feedback set to MQFB_QUIT.
Then in your child thread that reads the queue, you put the following:
| Code: |
if (msg.feedback == MQC.MQFB_QUIT)
{
return;
// or throw an exception - no message or time to quit ...
} |
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Hey I learn't somthing today. A bit later than jeff did (see the other thread) 
Thanks for the tip Roger. I'm off to incorporate this snip of code into my adapter layer...
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John
The pain of low quaility far outlasts the joy of low price. |
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