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MQSeries.net Forum Index » General Discussion » MQ v6.0 in Production - Comments?

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wschutz
PostPosted: Thu Sep 29, 2005 6:46 am    Post subject: Reply with quote

Jedi Knight

Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)

The term "CSD" (Corrective Service Diskette) is no longer in use, for what should be obvious reasons.
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jefflowrey
PostPosted: Thu Sep 29, 2005 6:50 am    Post subject: Reply with quote

Grand Poobah

Joined: 16 Oct 2002
Posts: 19981

Sure, I'd expect that it would be FixPack 1 of MQ 6.0. Or is everything going to be Refresh Packs instead?

But there weren't any APARs listed on that page he posted...
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ramires
PostPosted: Thu Sep 29, 2005 6:52 am    Post subject: Reply with quote

Knight

Joined: 24 Jun 2001
Posts: 523
Location: Portugal - Lisboa

Jeff,

sorry to ask... but what do you mean by "placeholder page"... english isn't my primary language
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jefflowrey
PostPosted: Thu Sep 29, 2005 6:56 am    Post subject: Reply with quote

Grand Poobah

Joined: 16 Oct 2002
Posts: 19981

I meant "a page that exists only to hold stuff later".

The page you listed looked like it was a skeleton for a page, with more data to come later.
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ramires
PostPosted: Thu Sep 29, 2005 7:12 am    Post subject: Reply with quote

Knight

Joined: 24 Jun 2001
Posts: 523
Location: Portugal - Lisboa

Thanks!
I don't know, I did searc MQ support site, found this one:

http://www-1.ibm.com/support/search.wss?tc=SSFKSJ&rs=171&rank=8&dc=DB550+D100&dtm

and then some clicks and found that placeholder page.

This is an interesting one:

IY75237: Migrating queue manager to WMQv6 sets MCA Type of all the channels to PROCESS.
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PeterPotkay
PostPosted: Thu Sep 29, 2005 12:29 pm    Post subject: Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7723

For what its worth, we ran some tests today against my Linux 6.0 QM. We thought we were OK, as with amqsgetc, MO71 and some Java apps connected in client mode the QM came down cleanly. But then we added some VB.NET apps to the mix. endmqm hung. Something with the .NET clients, because they were the only ones that seemed to hang the endmqm.

The solution was to kill -9 the endmqm from another telnet session, whch allowed our shutdown script to complete. At that point ps-ef|grep mq showed the amqrmppa process orphaned. We kill -9 that, and the QM is down for good. It starts back up normally. Not a show stopper, but a pain in the arse nevertheless.

I'm gonna open up a ticket to see if I can get an Interim fix ahead of CSD1.
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wschutz
PostPosted: Thu Sep 29, 2005 2:30 pm    Post subject: Reply with quote

Jedi Knight

Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)

PeterPotkay wrote:
For what its worth, we ran some tests today against my Linux 6.0 QM. We thought we were OK, as with amqsgetc, MO71 and some Java apps connected in client mode the QM came down cleanly. But then we added some VB.NET apps to the mix. endmqm hung. Something with the .NET clients, because they were the only ones that seemed to hang the endmqm.

The solution was to kill -9 the endmqm from another telnet session, whch allowed our shutdown script to complete. At that point ps-ef|grep mq showed the amqrmppa process orphaned. We kill -9 that, and the QM is down for good. It starts back up normally. Not a show stopper, but a pain in the arse nevertheless.

I'm gonna open up a ticket to see if I can get an Interim fix ahead of CSD1.

Peter...were they executing an mq api call at the time? I can repro this problem with amsputc hanging on console input. Once I enter text (ie MQPUT), the qmgr shuts down.
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PeterPotkay
PostPosted: Thu Sep 29, 2005 2:39 pm    Post subject: Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7723

The apps (I wrote them) were either doing an MQGET with wait, or an MQPUT under syncpoint but before the MQCMIT.

We thought, Oooh, its the outstanding MQGET with wait that is doing it, but we could not reproduce it with amqsgetc.

Just go this responce for my PMR:
Quote:

I looked into defect 93717, and the change team has said that it is dependant on too many changes, and wont be available until the release of CSD01. They have suggested avoiding the "-i" until the CSD is available.


So avoid using -i, and have the QM wait until all clients decide to end (i.e. forever) or use -i, and wait forever.
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Peter Potkay
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bbburson
PostPosted: Fri Sep 30, 2005 1:12 pm    Post subject: Reply with quote

Partisan

Joined: 06 Jan 2004
Posts: 378
Location: Nowhere near a queue manager

PeterPotkay wrote:
So avoid using -i, and have the QM wait until all clients decide to end (i.e. forever) or use -i, and wait forever.


What about -p? Is it still available to force the queue manager to come down? My shutdown script for v5.3 goes through endmqm, endmqm -i, endmqm -p, kill -9, allowing a certain amount of time at each stage before proceeding.
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wschutz
PostPosted: Fri Sep 30, 2005 2:44 pm    Post subject: Reply with quote

Jedi Knight

Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)

bbburson wrote:
PeterPotkay wrote:
So avoid using -i, and have the QM wait until all clients decide to end (i.e. forever) or use -i, and wait forever.


What about -p? Is it still available to force the queue manager to come down? My shutdown script for v5.3 goes through endmqm, endmqm -i, endmqm -p, kill -9, allowing a certain amount of time at each stage before proceeding.

endmqm -p is still available. A quick test here shows that it too hangs in the same circumstances that -i hangs
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PeterPotkay
PostPosted: Fri Sep 30, 2005 2:55 pm    Post subject: Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7723

I even tried to do an endmqlsr -f -m QMNAME before trying the endmqm, thinking it might help. Not.
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hopsala
PostPosted: Fri Sep 30, 2005 5:58 pm    Post subject: Reply with quote

Guardian

Joined: 24 Sep 2004
Posts: 960

This is the funniest thread ever "the story of the MQ Admin who couldn't".

It's the new-and-improved IBM approach to EAI - MQ v6.0 is so bloody amazing, you'll never want it to end
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EddieA
PostPosted: Fri Sep 30, 2005 10:20 pm    Post subject: Reply with quote

Jedi

Joined: 28 Jun 2001
Posts: 2453
Location: Los Angeles

Quote:
MQ v6.0 is so bloody amazing, you'll never want it to end

That's the problem, you can't end it. Haven't you been reading the last few posts.

Cheers,
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SAFraser
PostPosted: Mon Oct 03, 2005 1:19 pm    Post subject: Reply with quote

Shaman

Joined: 22 Oct 2003
Posts: 742
Location: Austin, Texas, USA

1. Love the term "refresh pack". Is that like calling a defect an "undocumented feature"?

2. I had just about decided to go ahead with v6.0 on a development server..... But I guess I should do so only if I never want it to end. <sigh> I'll let you all know how it goes when I screw up the courage to try it.

This has been a great thread.

Shirley
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PeterPotkay
PostPosted: Mon Oct 03, 2005 1:26 pm    Post subject: Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7723

my pmr was just updated and they said this endmqm bug is only present in Linux and AS/400.
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Peter Potkay
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