Author Archives: Roger Lacroix

My name is Roger Lacroix and I am a die hard programmer. I have been programming since the 80s. My favorite programming languages are Java, C and Rexx. I have worked in the Airline, Retail but I have spent most of my time doing middleware work in the financial services industry. In 1994, I was introduced to IBM MQ (aka WebSphere MQ & MQSeries) and I thought it was the next best thing since man created fire. This blog will be about IBM MQ, Java, C, Rexx and any other interesting items that I can think of. I hope you enjoy it.

Enhancement to Exporting MQ Objects into Individual Files

March 11, 2021 Roger Lacroix
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Yesterday, I wrote a blog item regarding Exporting MQ Objects into Individual Files. I forgot that the dmpmqcfg program can output the MQ Object information as 1 line rather than spanning multiple lines. Hence, if we let dmpmqcfg do that work then we can simplify the Rexx script to only output the various MQ objects […]

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MacBook Pro, External Monitor, Display Link and Java

March 11, 2021 Roger Lacroix
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Ok. Here’s a really weird one reported yesterday by a customer. If you are using a MacBook Pro with an external monitor (or 2) via Display Link and you try and run a Java GUI application, it will crash because the JVM thinks that it is running on a headless computer (no graphics driver). Therefore, […]

Capitalware, Java, JMS, macOS (Mac OS X), MQ Visual Browse, MQ Visual Edit, MQTT Message Editing Suite Comments Off on MacBook Pro, External Monitor, Display Link and Java

Exporting MQ Objects into Individual Files

March 10, 2021 Roger Lacroix
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I posted this item on mqseries.net and I thought I should do a write up here. Back in the early 2000s, I was a consultant at a customer site and they wanted the nightly dumps of the MQ objects (not messages), 1 line per object and then check those files into a source code repository. […]

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IBM MQ Fix Pack 8.0.0.16 Released

March 5, 2021 Roger Lacroix
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IBM has just released Fix Pack 8.0.0.16 for IBM MQ https://www.ibm.com/support/pages/node/6417257 Regards, Roger Lacroix Capitalware Inc.

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IBM MQ Message Duplication

February 23, 2021 Roger Lacroix
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IBM Support has a technical note labeled Does MQ have a feature to generate automatically a duplicate message?. The options listed on that page are to use Pub/Sub or programs qload and dmpmqmsg. You can also use MQ Visual Edit and MQ Batch Toolkit to get messages from a queue and write the message to […]

Capitalware, IBM i (OS/400), IBM MQ, Linux, MQ Message Replication, Raspberry Pi, Unix, Windows Comments Off on IBM MQ Message Duplication

Interesting Blog Item: IBM Knowledge Center – LATEST!

February 10, 2021 Roger Lacroix
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Morag Hughson of MQGem has a new blog posting called IBM Knowledge Center – LATEST! regarding a new feature in the IBM Knowledge Center. Instead of providing a link with the MQ version number, you can swap the version number for the word “latest”. This is a cool feature for putting links in a blog […]

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IBM MQ End of Service Dates

February 9, 2021 Roger Lacroix
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So, what version of IBM MQ (aka WebSphere MQ & MQSeries) are you running? Are you behind in upgrading your release of MQ? Everybody “should be” running IBM MQ v9.0, v9.1 or v9.2, if you want support from IBM. In case it has slipped your mind, here is a list of IBM MQ releases and […]

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Reasons MQSC Commands for an AMQP Channel May Not Work

February 5, 2021 Roger Lacroix
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IBM has posted a support document describing the various reasons why an MQSC command may not work for an AMQP channel. https://www.ibm.com/support/pages/node/6411487 Regards, Roger Lacroix Capitalware Inc.

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Using Loki and Grafana with MQ Logs

February 5, 2021 Roger Lacroix
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Mark Taylor of IBM has posted a blog item on using Loki and Grafana software to parse and display information from MQ logs. https://marketaylor.synology.me/?p=838 Regards, Roger Lacroix Capitalware Inc.

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Local Transactions Using IBM MQ and the JMS API

February 5, 2021 Roger Lacroix
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Olja Rastic-Dulborough has written an article that introduces the user to the concepts of local transactions using IBM MQ and JMS. https://developer.ibm.com/components/ibm-mq/articles/an-introduction-to-local-transactions-using-mq-and-jms/ Regards, Roger Lacroix Capitalware Inc.

Education, HPE NonStop, IBM i (OS/400), IBM MQ, IBM MQ Appliance, Java, JMS, Linux, macOS (Mac OS X), Programming, Raspberry Pi, Unix, Windows, z/OS Comments Off on Local Transactions Using IBM MQ and the JMS API