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| How MQ system stores messages |
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| santosh.veerlapati |
 Posted: Fri Nov 19, 2010 1:58 am Post subject: How MQ system stores messages |
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Voyager
Joined: 19 Jun 2008
Posts: 87
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Hi
We are using IBM Websphere MQ in our production system.
From long back, one small question is breaking my head, how the MQ system is storing the incoming messages in Queue in file system or any mechanism.
For both Persistent and Non-Persistent Messages.
And How Logging is related to this storing. etc.
I m not able to find correct reference also to find out this information.
Please help me ....
Thanks in Advance
Santosh |
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| Mr Butcher |
| Posted: Fri Nov 19, 2010 3:50 am Post subject: |
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Padawan
Joined: 23 May 2005
Posts: 1716
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the effort you have spent to find that information must have been tremendous .....
see links above for library and info center and read concepts and components (well, read all others too)
however, the code how this is done is not shown....... its is explained on a functional level.
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Regards, Butcher |
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| bruce2359 |
| Posted: Fri Nov 19, 2010 6:22 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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Messages are stored in a proprietary (non-documented, non-disclosed) manner.
How logs are used is well-documented in the WMQ System Administration manual. Download and read. Look in the index or table of contents for the words logs, restart and recovery.
_________________
I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| santosh.veerlapati |
| Posted: Fri Nov 19, 2010 8:07 am Post subject: |
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Voyager
Joined: 19 Jun 2008
Posts: 87
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Thanks for u r reply, today i came to know its non-documented and non-disclosed.. thats why i m wondering why i m not able to find any documentation regarding storing of messages in MQ.
Thanks a lot......
Cheers
Santosh |
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| bruce2359 |
| Posted: Fri Nov 19, 2010 8:53 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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Your curiosity is noted and appreciated. We all ponder these kind of questions.
IBM is obligated to meet the objectives defined (quite well) in the WMQ manuals (Application Programming Reference , Application Programming Guide, System Administration, Intercommunications, etc.). IBM is not obligated to describe exactly how it meets those objectives for each platform, o/s, and network protocol.
Occasionally, someone will discover how some internal thing seems to work; but IBM is not obligated to maintain that internal method - only to conform to what is documented in the manuals.
_________________
I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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