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| Mr Butcher |
 Posted: Tue Jan 08, 2008 11:59 pm Post subject: Migration to MQSeries V6 on z/OS - Recompile applications? |
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Padawan
Joined: 23 May 2005
Posts: 1716
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According to the migration documentation (MQSeries V6 for z/OS System Setup Guide - Page 75 - Application stubs) no recompile of the application programs (coming from MQSeries 5.3.1) is required when migrating to MQSeries V6 on z/OS.
Does anyone already did the migration 5.3.1 to 6.0 and had to re-compile applications? If so, for what reason? Or did it all work fine without recompile?
(just talking about applications here, not exits)
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| giuly020277 |
| Posted: Wed Jan 09, 2008 1:25 am Post subject: |
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Centurion
Joined: 07 Aug 2007
Posts: 146
Location: Florence,Italy
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Hello Mr Butcher..
i have migrated MQ from version 5.3.1 to version 6.0 two mounth ago....and...No..i have no need to recompile my applications.
All go right without doing it..
regards
Giuliano |
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| Vitor |
| Posted: Wed Jan 09, 2008 1:29 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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This site's got the new version on a test LPAR and all the applications seem to be going fine. We're not exactly stretching the capabilities with what we're doing mind, but the basic stuff works fine.
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| fjb_saper |
| Posted: Wed Jan 09, 2008 4:00 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Are you sure recompile doesn't mean relinking here?
I would have thought that at least you need to relink so that the new MQ libraries get picked up... 
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| Vitor |
| Posted: Wed Jan 09, 2008 4:06 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| fjb_saper wrote: |
| I would have thought that at least you need to relink so that the new MQ libraries get picked up... |
This lot didn't bother, but then they've got a relaxed attitude to danger (still running v5.1 on some distributed production machines).
Like I said, not extensively tested and probably not much function past the "get a message" & "put a message".
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| fjb_saper |
| Posted: Wed Jan 09, 2008 4:31 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| Vitor wrote: |
| fjb_saper wrote: |
| I would have thought that at least you need to relink so that the new MQ libraries get picked up... |
This lot didn't bother, but then they've got a relaxed attitude to danger (still running v5.1 on some distributed production machines).
Like I said, not extensively tested and probably not much function past the "get a message" & "put a message". |
Maybe linking is done dynamically at runtime and the change is limited to the JCL :ignorant: But then what do I know about mainframes??
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| Vitor |
| Posted: Wed Jan 09, 2008 4:49 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| fjb_saper wrote: |
| Maybe linking is done dynamically at runtime and the change is limited to the JCL :ignorant: But then what do I know about mainframes?? |
Typically (and certainly here) you'd statically link with either the CICS stub or the batch stub depending on where the application was running.
What you would change at runtime is the JOBLIB / STEPLIB / CICSLIB / etc that the job is using.
And who does know about mainframes these days anyway?
(Many thanks to everyone who doesn't, increasing my chances of staying employed until retirement because of a wonderfully small resource pool!  )
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| PeterPotkay |
| Posted: Wed Jan 09, 2008 9:20 am Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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We went from 5.3.0 to 6.0 a couple of years ago on a few sysplexes and did not have to relink / recompile a single app.
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Peter Potkay
Keep Calm and MQ On |
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| tleichen |
| Posted: Wed Jan 09, 2008 11:41 am Post subject: |
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Yatiri
Joined: 11 Apr 2005
Posts: 663
Location: Center of the USA
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| Vitor wrote: |
...And who does know about mainframes these days anyway?
(Many thanks to everyone who doesn't, increasing my chances of staying employed until retirement because of a wonderfully small resource pool! ) |
FYI, Vitor, I do. I have worked with them for over 25 years. I just don't get to work with them much now (go figure). 
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| Vitor |
| Posted: Wed Jan 09, 2008 12:35 pm Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| tleichen wrote: |
| Vitor wrote: |
...And who does know about mainframes these days anyway?
(Many thanks to everyone who doesn't, increasing my chances of staying employed until retirement because of a wonderfully small resource pool! ) |
FYI, Vitor, I do. I have worked with them for over 25 years. I just don't get to work with them much now (go figure). |
Hey, there's room for 2 of us in the job market!
I must say, this is the first hands-on z/OS gig I've had in 5 years. But my z/OS was a big factor in getting the gig.
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| belchman |
| Posted: Fri May 02, 2008 3:51 am Post subject: |
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Partisan
Joined: 31 Mar 2006
Posts: 386
Location: Ohio, USA
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We went from v5.3 for z/OS to v6.0 for z/OS a couple years back. To my knowledge no application group "complained" about having to recompile or relink anything.
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