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| Inforz |
 Posted: Tue Jan 08, 2013 7:12 am Post subject: Frequent MQ error |
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Centurion
Joined: 15 Apr 2011
Posts: 139
Location: Chennai, India
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There are two Windows MQ servers each having a QM that communicates with a sender and receiver pair that enables two way communication.
Now why do these channels get a difference in sequence numbers(and the sender channels go into retrying state) frequently?? |
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| nathanw |
| Posted: Tue Jan 08, 2013 7:17 am Post subject: |
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Knight
Joined: 14 Jul 2004
Posts: 550
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in my experience the sequence number is vital to keeping teh channels running correctly and should always be in sync
the only reason i know that the numbers get out of sync is that someone or something has forced a shutdown of the channels and a message is lost.
the channels need to be re-synced so that they can start back up and run correctly.
if this is being done and you are still looking at these errors then you need to check your architecture and also the administration
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| Vitor |
| Posted: Tue Jan 08, 2013 7:22 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| nathanw wrote: |
| the only reason i know that the numbers get out of sync is that someone or something has forced a shutdown of the channels and a message is lost. |
The other common cause is someone doing a delete/define/alter of one of the definitions.
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| bruce2359 |
| Posted: Tue Jan 08, 2013 8:13 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9470
Location: US: west coast, almost. Otherwise, enroute.
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| nathanw wrote: |
| the only reason i know that the numbers get out of sync is that someone or something has forced a shutdown of the channels and a message is lost. |
No messages are lost.
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| nathanw |
| Posted: Tue Jan 08, 2013 8:17 am Post subject: |
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Knight
Joined: 14 Jul 2004
Posts: 550
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ok maybe i phrased that wrong
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Artificial Intelligence stands no chance against Natural Stupidity.
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| mqjeff |
| Posted: Tue Jan 08, 2013 8:20 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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| Vitor wrote: |
| nathanw wrote: |
| the only reason i know that the numbers get out of sync is that someone or something has forced a shutdown of the channels and a message is lost. |
The other common cause is someone doing a delete/define/alter of one of the definitions. |
This usually has to be the receiver that is changed. If the sender is changed, it can typically tell the receiver to update it's sequence number. |
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