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| Message Sequence #s and Retrying Channels |
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| PeterPotkay |
 Posted: Tue Sep 04, 2007 1:51 pm Post subject: Message Sequence #s and Retrying Channels |
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Poobah
Joined: 15 May 2001
Posts: 7722
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MQ 6.0.2.1. In this case the sender is Windows 2003 SP1 and the receiver is Linux.
The receiver channel gets its Sequence # reset by mistake to 1. The sender channel is never touched so its sequence # is still 48574805 (whatever).
As soon as the next message comes thru the channel yaks with a Sequence # error and the sender goes into retry. Both sides' error logs confirm the problem is sequence #s. So far so good, working as designed.
However, the channel never gets out of short retry and into long retry. The channel status shows that Short Retries Left is "stuck" at whatever the SNDR channel definition has for Short Retry Count. I've looked in the manuals and don't see anything that says sequence # errors don't drive the short retry to long retry logic.
This seems like a bug to me.
As a test I made the channel go into retrying because the CONNAME was incorrect and that did act normally for short into long retries.
Am I missing something buried in the manuals, or is it PMR time?
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Peter Potkay
Keep Calm and MQ On |
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| fjb_saper |
| Posted: Tue Sep 04, 2007 1:56 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Have you checked whether this behavior is fixed in 6.0.2.2?
Thanks 
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| gunter |
| Posted: Wed Sep 05, 2007 3:22 am Post subject: |
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Partisan
Joined: 21 Jan 2004
Posts: 307
Location: Germany, Frankfurt
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It is always the first retry.
If a channel goes in retry because the sequence is not correct, the first retry is successful, the channel goes to running an tries to send the message again, after this it is stopped again because of a wrong sequence. A sequence error can only detected on a running channel if a message is delivered.
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Gunter Jeschawitz
IBM Certified System Administrator - Websphere MQ, 5.3 |
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| PeterPotkay |
| Posted: Wed Sep 05, 2007 3:44 pm Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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IBM has confirmed it is a bug. I submitted a PMR.
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Peter Potkay
Keep Calm and MQ On |
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| gunter |
| Posted: Wed Sep 05, 2007 9:56 pm Post subject: |
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Partisan
Joined: 21 Jan 2004
Posts: 307
Location: Germany, Frankfurt
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| Quote: |
| IBM has confirmed it is a bug |
Then it is a quit old bug, I had to go around in 2001.
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Gunter Jeschawitz
IBM Certified System Administrator - Websphere MQ, 5.3 |
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