Archive for the ‘MQ’ Category
Friday, October 3rd, 2008
This is a relatively new example of how to use JMeter with WebSphere MQ. This approach is a clever way of inserting messages into MQ using a JMS sampler (point to point) with a JNDI binding within MQ.
I had not heard of this approach before and am sure it will ...
Posted in MQ, Java, JMeter | No Comments »
Friday, September 28th, 2007
Recently I have been trying to determine what the impact of using MQ message persistence is on disk subsystem performance. There is alot of literature from IBM recommending ideal configurations to support MQ persistence, so I won't turn this into a post that recommends ideal settings. What I did want ...
Posted in MQ, Solaris, Hardware, Analysis, Tuning | 3 Comments »
Friday, August 10th, 2007
So I spent the best part of a day assisting our sys admin and developer resolve MQ errors that a COBOL client was throwing when opening more than one concurrent connection to a clustered queue manager.
Because the architecture had recently changed to a cluster, and my load harness was no ...
Posted in MQ, Backup, Analysis, Testing | 2 Comments »
Monday, April 30th, 2007
When load testing MQ you are no doubt going to need to be able to monitor queue statistics in terms of how many messages have been enqueued and dequeued within a given timeframe. You can use native runmqsc commands to query queues in order to find current queue depths but ...
Posted in MQ, Statistics, Java, Analysis | No Comments »
Tuesday, January 30th, 2007
This is another blog in a similar vein to "No LoadRunner, No Problems" where I needed to write a custom test harness for MQ server. IBM kindly provide a complete Java API for getting in to the nitty gritty of MQ messages. Much can be learnt from WebSphere MQ sample ...
Posted in MQ, Java, Testing | No Comments »
