Archive for the Category: IBM MQ

MQ Visual Browse V3.0.0 Released

October 21, 2019 Roger Lacroix

Capitalware Inc. would like to announce the official release of MQ Visual Browse v3.0.0. This is a FREE upgrade for ALL licensed users of MQ Visual Browse V3. MQ Visual Browse allows users to view messages in a queue and/or topic of a IBM MQ queue manager and presents the data in a simplified format […]

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2 New IBM MQ RFEs related to com.ibm.mq.jmqi.defaultMaxMsgSize

September 20, 2019 Roger Lacroix

Please review and vote for these RFEs if you think they are a good idea. The links below will take you directly to the RFE. RFE #1: Document com.ibm.mq.jmqi.defaultMaxMsgSize JVM environment variable URL to review the RFE and Vote for it if you like: http://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=136680 RFE #2: Add & Document com.ibm.mq.jmqi.defaultMaxMsgSize for .NET Framework URL […]

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WebSphere MQ Fix Pack 5.3.1.16 for HP NonStop Server Released

September 19, 2019 Roger Lacroix

IBM has just released Fix Pack 5.3.1.16 for WebSphere MQ for HP NonStop Server: https://www.ibm.com/support/pages/websphere-mq-hp-nonstop-server-v531-fix-pack-53116 Regards, Roger Lacroix Capitalware Inc.

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IBM MQ Fix Pack 8.0.0.13 Released

September 19, 2019 Roger Lacroix

IBM has just released Fix Pack 8.0.0.13 for IBM MQ https://www.ibm.com/support/pages/fix-pack-80013-websphere-mq-v8 Regards, Roger Lacroix Capitalware Inc.

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JMS and Java Client Mode Performance Issues for MQ Get API Calls

August 15, 2019 Roger Lacroix

I’ve wasted far, far too much of my time inspecting what is going on with the auto-resizing of the get buffer for the internal JMQI and MQI components for MQ classes for JMS, MQ classes for Java and MQ classes for .NET. A strange entry in one of the MQ Auditor audit files got my […]

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.NET Performance Issues for MQ Get API Calls

August 14, 2019 Roger Lacroix

If you have read any of the following blog posting then you will know that I have a bee in my bonnet about the performance regarding Java/JMS MQGet API calls: Tuning JMS Programs for Optimum MQ Get API Calls Performance Tuning Java Programs for Optimum MQ Get API Calls Performance How to Improve Your Java/JMS […]

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Pub/Sub Java/JMS MQ MQGet API Issue

August 9, 2019 Roger Lacroix

Not surprisingly, when I tested: Subscribing to a topic with JMS Subscribing to a topic with Java (non-JMS) They both showed that the internal JMQI routine was starting with a MQGet buffer size of 4KB and auto-adjusting the size of the buffer as needed (all behind the scenes). Hence, when I used MQ Auditor, I […]

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How to Improve Your Java/JMS MQ Tuning Cred.

August 8, 2019 Roger Lacroix

Here’s my version of a cheap Info-Commercial: Do you want to impress your colleagues? Do you want to impress your boss, so that you can receive a big fat bonus? Call today and we’ll show you how to impress the MQAdmins in your company! And if you call within the next 5 minutes, we’ll even […]

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Tuning Java Programs for Optimum MQ Get API Calls Performance

August 6, 2019 Roger Lacroix

You should really read this blog posting first. The results of some of the test scenarios below, simply do not make any sense. I would like to think there is some sort of logic behind it but it is probably lack of testing by IBM that introduced some bugs in the code or should I […]

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Tuning JMS Programs for Optimum MQ Get API Calls Performance

August 2, 2019 Roger Lacroix

On Wednesday, I decided to do some testing of some simple (1) MQ for JMS, (2) MQ for Java and (3) procedure language (i.e. amqsbcg) programs to show that using the JVM environment variable of com.ibm.mq.jmqi.defaultMaxMsgSize with an appropriate size could make a JMS application 10 to 15% faster because there would not be any […]

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