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| boydl |
 Posted: Tue Mar 21, 2006 10:51 pm Post subject: MQver6.0 and MQver5.3 work together |
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Novice
Joined: 05 Feb 2003
Posts: 16
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Hi all,
In a client connection mode, can an application compiled with the MQver6.0 libraries connect to an MQ server that is on version 5.3 or the other way round - application compiled with MQver5.3 libraries connecting to the server that is on MQver6.0?
Why we want to do this? ...bcoz we want to move the linux platform from RHEL3.0 to RHEL4.0 and we want to do the migration in stages..
Thanks
BL |
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| Nigelg |
| Posted: Wed Mar 22, 2006 12:45 am Post subject: |
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Grand Master
Joined: 02 Aug 2004
Posts: 1046
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Yes, clients can connect either way.
If you are using AMQCLCHL.TAB, this is NOT compatible from v6 to v53. but it is the other way round. That is, a client channel table built on v6 cannot be copied to a v5.3 qmgr, but a 5.3 table can be copied to a v6 qmgr.
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MQSeries.net helps those who help themselves.. |
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| wschutz |
| Posted: Wed Mar 22, 2006 2:37 am Post subject: |
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Jedi Knight
Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)
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| Nigelg wrote: |
| If you are using AMQCLCHL.TAB, this is NOT compatible from v6 to v53. but it is the other way round. That is, a client channel table built on v6 cannot be copied to a v5.3 qmgr, but a 5.3 table can be copied to a v6 qmgr. |
Is that something you normally do? And I assume by "copy" you mean placed in the /@ipcc direcotry in a qmgr.
afaik, there's no problem using back / forward level channel tables with clients.
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-wayne |
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| Nigelg |
| Posted: Wed Mar 22, 2006 3:11 am Post subject: |
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Grand Master
Joined: 02 Aug 2004
Posts: 1046
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| Quote: |
afaik, there's no problem using back / forward level channel tables with clients.
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Good job you read this then, because now you know something you did not know before.
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| PeterPotkay |
| Posted: Wed Mar 22, 2006 4:43 pm Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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I'm still not clear on this. Nigel said you can't copy a 5.3 table to a 6.0 QM. OK, don't know why you would ever copy a channel table from one QM to another, but OK.
What Wayne was asking (me thinks), and what I am also wondering is, can we have various combinations of MQ client code, Channel Table and QMs? Like a 5.3 client using a 6.0 table to connect to 6.0 QM? Or a 6.0 Client using a 6.0 table to connect to a 5.3 QM? etc, etc, etc.
(I take it for granted that a 5.3 client and/or table could not exploit 6.0 only features in any of these scenarios)
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Peter Potkay
Keep Calm and MQ On |
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| jefflowrey |
| Posted: Wed Mar 22, 2006 4:48 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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I took Nigel's remark to mean "don't use a v6 channel table with a v5.3 client", and possibly the reverse as well.
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| wschutz |
| Posted: Wed Mar 22, 2006 5:37 pm Post subject: |
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Jedi Knight
Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)
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Well... I just tested it...and I can use a V6 channel table (made on linux) with a v5.3 client (on solaris)......and, the reverse works as well....
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-wayne |
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