Installing IBM WebSphere MQ Client on Linux

This is the second part in the IBM WebSphere MQ series. Installing IBM WebSphere MQ client is also very easy. It takes just a few minutes to install. IBM WebSphere MQ Client can be downloaded from http://www-01.ibm.com/support/docview.wss?rs=171&uid=swg24019253.

Extract it to some folder (e.g /root/download/wmqc) after download. Then follow these steps.

1. cd /root/download/wmqc
2. ./mqlicense -accept

This is necessary since this instructs to accept the license, otherwise you will not be able install WebSphere MQ. If this gives a JRE error then give the JRE path like this:

2. ./mqlicense -accept -jre PATH_TO_JRE
3. rpm -ivh MQSeriesClient-x.x.x-x.i386.rpm MQSeriesRuntime-x.x.x-x.i386.rpm

where x.x.x-x is the version number like 7.0.1-1

That’s it! WMQ client has been installed. Now you can connect to WMQ server on another machine, or install WMQ SDK to start developing applications for IBM WebSphere MQ.

This is necessary since this instructs to accept the license, otherwise you will not be able install WebSphere MQ. If this gives a JRE error then give the JRE path like this:

2. ./mqlicense -accept -jre PATH_TO_JRE
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Installing IBM WebSphere MQ Server on Linux

This is part 1 of the series on IBM WebSphere MQ. Installing IBM WebSphere MQ server on a Linux machine is easy. It takes just a few minutes to install. IBM WebSphere MQ can be downloaded from http://www.ibm.com/developerworks/downloads/ws/wmq/.

Extract it to some folder (e.g /root/download/wmq) after download. Then follow these steps.

1. cd /root/download/wmq
2. ./mqlicense -accept

This is necessary since this instructs to accept the license, otherwise you will not be able install WebSphere MQ. If this gives a JRE error then give the JRE path like this:

2. ./mqlicense -accept -jre PATH_TO_JRE
3. rpm -ivh MQSeriesServer-x.x.x-x.i386.rpm MQSeriesRuntime-x.x.x-x.i386.rpm

where x.x.x-x is the version number like 7.0.1-1

That’s it! WMQ server has been installed. The next steps include adding users in mqm group to grant access to users to perform certain operations like creating/deleting queue manager and queues, then creating queue manager then configuring it.

XMS.Net Consumer Application for IBM WebSphere MQ

Currently we are working on IBM WebSphere MQ to be used in our project. One feature that we need from several features of WebSphere MQ was to subscribe to a topic with selector string from a C#.Net application. IBM provides two libraries for .Net. One is MQI classes for .Net and another is XMS.Net (IBM Message Service Client for .Net). Finally we adopted XMS.Net, although we also tried MQI classes for .Net, but we moved to XMS.Net. Its totally a different story why we moved to XMS.Net. I might write another post on it 🙂

So, at first place we tried to run sample consumer application came with XMS.Net library. Our center of the focus was selector string. When we were trying to run the sample consumer application and supplied the topic to subscribe to and selector string to filter the messages, it was getting stuck every time after subscription. Even it wasn’t receiving any messages, although we could see the subscription object being created on the WMQ server. One thing that we were doing was that we were running the sample in ‘client’ mode. When we switched the mode to ‘unmanaged’, everything ran smoothly. We were bit surprised! Why it wasn’t running in client mode? I think there is some bug, since I couldn’t find anything related in the docs. Might IBM will fix this issue in the future release.  But at last, somehow we managed to run the sample consumer application and finally we are at the stage where we can move forward.

So, if you are also trying to run XMS.Net application and want to subscribe to some topic with selector string to filter messages, remember to run the application in ‘unmanaged’ mode. You can find further information in XMS.Net doc (ftp://ftp.software.ibm.com/software/integration/support/supportpacs/individual/ia9h.pdf).

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