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ctcm188 · Posted: Thu Mar 25, 2004 3:51 pm Post subject: Problem upgrading from 5.1 to 5.3

I am working on a strategy for upgrading a 5.1 MQ installation to Websphere MQ 5.3.

I have run a test where I upgrade a host that is part of a MQ cluster and also has a distributed channel to a queue manager that is not a member of the same cluster.

When I start the queue manager on the upgraded host I find that the distributed channel's transmission queue has the following two parameters changed.

GET is now DISABLED and TRIGGER is now NOTRIGGER.

I have changed these parameters back manually using runmqsc but I was wondering why these two parameters have changed?

If I stop the same queue manager (while it is at 5.1) for an hour then restart it I have no problems.

To upgrade the host I run pkgrm to remove the mqm-update package then the mqm package. I then run pkgadd to install MQ 5.3 followed by mqm-upd06 and gsk6bas.

If this change of parameter is unavoidable is there a quick way to change these parameters back?
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Regards,
Christopher.