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MQSeries.net Forum Index » IBM MQ Java / JMS » long delay creating an instance of MQQueueManager

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earthman
PostPosted: Wed Dec 10, 2003 7:17 am    Post subject: long delay creating an instance of MQQueueManager Reply with quote

Newbie

Joined: 10 Dec 2003
Posts: 1
We have an interactive web service that responds to http requests within seconds. We use MQSeries queues internally as well as using them to communicate with a remote information service.

In some situations it is taking 15-17 seconds to create an instance of MQQueueManager. We create 5 instances for every request and this is killing our performance. I haven't figured out what causes this to happen. Does anyone have any suggestions about where I should look?

Thanks.
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dtauzell
PostPosted: Wed Dec 10, 2003 8:13 am    Post subject: Reply with quote

Apprentice

Joined: 23 May 2002
Posts: 37
First, I would suggest creating a systemwide pool instead of creating instances each time; if that is possible. We did that and it made a huge performance difference (although we never saw times in the 12-15 second range).

Second, write a small stand-alone application that connects and see if you get the same time. You might have an issue with DNS lookups or something similar.

-Dave
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