MQSeries.net :: View topic - MQ 5.3 (win XP) MQNOREMPOOL environment parameter

HugoB · Posted: Fri Feb 27, 2004 5:08 am Post subject:

Ok, after 2 days i figured out how to solve a TCP/IP problem.
I had my laptop with WinXP SP1 plus WMQ 5.3 CSD06 and WMQI 2.1 CSD04 ( i think).

Somehow i was not able to start the Control Center to communicate
with the Configuration ManagerÂ´s QMGR. MQ error 2195.
In my eventviewer it showed up as some sort of TCP/IP error.

So i tried things with rfhutilc (client mode) and amqsputc.exe.
And it was the same problem. I could not connect.

After some searching on mqseries.net i concluded that i should give the
following environtment parameter MQNOREMPOOL = 1.
And then a reboot.

This did solve the problem. It appears that WMQ5.3 starts processes during a connect under some sort of pool, and not as child processes under the channel initiator or listener, as it was in MQ 5.2.

And with this parameter you force it back to MQ 5.2 functionallity.

All fine, and solved with this undocumented environment variable.

But why isnÂ´t it documented. And does this problem only appear on WinXP, as i see people having it also on Win2k. ?
And is there a way that the default (so pool enabled) can work to with WMQ 5.3 and XP/(Win2K). Does this problem always appear with this combination ??