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| Persistent/Non_persisten Message Rollback |
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| mq_population |
 Posted: Fri Aug 14, 2009 2:38 am Post subject: Persistent/Non_persisten Message Rollback |
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Apprentice
Joined: 14 Jul 2009
Posts: 26
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Hi
If there is a scenario - where no dead letter queue is defined and the destination queue is full ( in a distributed message queueing environment ) , what happens to the persistent / non-persistent messages ? Should the persistent message roll back as transaction could not finish and non-persistent lost ?
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| exerk |
| Posted: Fri Aug 14, 2009 2:53 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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If the non-persistent message is coming down a channel, then yes, it will be discarded, not lost. WMQ does not lose messages, it does with them what it is told to. If it's persistent and coming down a channel, it will be rejected back to the origin, and the channel will close.
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It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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| PeterPotkay |
| Posted: Fri Aug 14, 2009 5:44 am Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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| exerk wrote: |
| If the non-persistent message is coming down a channel, then yes, it will be discarded, not lost. |
Only if the channel speed is set to FAST. If its set to NORMAL, the non persistent message will not be discarded. The channel will stop instead, like it would for a persistent message in the same scenario.
I have almost all my channels set to NORMAL. I don't want even non persistent message just discarded, and I don't want every app making every message persistent.
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Peter Potkay
Keep Calm and MQ On |
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| exerk |
| Posted: Fri Aug 14, 2009 5:46 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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| PeterPotkay wrote: |
| ...Only if the channel speed is set to FAST... |
I forgot to add that detail, thank you 
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It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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| mq_population |
| Posted: Thu Aug 20, 2009 2:10 am Post subject: |
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Apprentice
Joined: 14 Jul 2009
Posts: 26
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