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MQSeries.net Forum Index » IBM MQ API Support » Mixing global and local units of work on a QM?

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zpat
PostPosted: Mon Oct 25, 2004 4:16 am    Post subject: Mixing global and local units of work on a QM? Reply with quote

Jedi Council

Joined: 19 May 2001
Posts: 5866
Location: UK
If we have one application using global units of work coordination between MQ and MTS (DTC) - is it possible to have another separate MQ application using local (MQ) transactions on the same queue manager?

I ask because XA enablement seems something that is configured at the system level - so how does a given application program opt in or out?

We have a MQ client program (in vb.net) that wants to use local UOW but seems to be getting caught up (and rejected) in a global transaction.

We are getting reason code 2354 on the MQPUT (with SYNCPOINT) and the same MQPUT works fine without syncpoint.

I suspect DTC is being used when it should not be - how can I control this in the application?
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kirani
PostPosted: Tue Oct 26, 2004 10:20 pm    Post subject: Reply with quote

Jedi Knight

Joined: 05 Sep 2001
Posts: 3779
Location: Torrance, CA, USA
Eventhough the XA feature is configured at the system/queue maanger level, I think other programs using local UOW should not be affected by this.
Isn't the XA transaction started by making MQBEGIN call? So, if your program is not making that call, it should work in local UOW mode.
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zpat
PostPosted: Wed Oct 27, 2004 12:34 am    Post subject: Reply with quote

Jedi Council

Joined: 19 May 2001
Posts: 5866
Location: UK
No MQBEGIN, but still seems to trying to join a global unit of work.

There is another thread with a possible solution.

http://www.mqseries.net/phpBB2/viewtopic.php?t=18067
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