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MQ Base Broker

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bobbee

Posted: Mon Nov 07, 2005 12:39 pm Post subject: MQ Base Broker

Knight

Joined: 20 Sep 2001
Posts: 545
Location: Tampa

We are doing performance testing using the MQ Supplied Broker. I have an application publishing messages on a TOPIC. These messages are gong to two queues. I am seeing the output count on the outbound queues constantly going from 0 to 1. This would imply thaat the Broker is opening and closing these queues on a per message basis. There is a QM.INI stanza param "OpenCacheSize" that indicated that a certain number of queues should stay open for "OpenCacheExpiry" seconds. The default is 128 and 300 respectively. I would expext my two queues to stay open for 300 seconds past the test. I don't see this. Am I misinterp. the stanza????

bobbee

wschutz

Posted: Mon Nov 07, 2005 5:37 pm Post subject:

Jedi Knight

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

I believe your reading of the meaning of those stanza parms is correct. So you're seeing the OPPROCS on your queues bouncing between 0 and 1?
_________________
-wayne

bobbee

Posted: Tue Nov 08, 2005 8:19 am Post subject:

Knight

Joined: 20 Sep 2001
Posts: 545
Location: Tampa

Yes I am. I thought I would "ping" the list before opening a PMR. We are seeing about 20 messages a second through put. There is a WAS JMS program in the middle though. But the OPROCS are bouncing from 1 to 0 to 1 constantly.

bobbee

Posted: Tue Nov 08, 2005 8:23 am Post subject:

Knight

Joined: 20 Sep 2001
Posts: 545
Location: Tampa

Also, thinking that I was misinterpeding the stanza defaults I coded the qm.ini stanza as follows and bounced MQ and the MQ-BKR. We didn't see any change after this:

Broker:
SyncPointIfPersistent=no
OpenCacheSize=128
OpenCacheExpiry=500
PublishBatchSize=5
PublishBatchInterval=1000

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