Yes, when you start a clustered Glassfish 2.x server then a MQ (JMS) broker will be started as well, in a separate JVM, and Glassfish will then connect to it (even if you don't intend to use messaging in your application).
Your error is caused by Glassfish being unable to connect to this broker.
It sounds as if something went wrong in starting the MQ broker. Look in the broker log for more information. This will be in a location under your Glassfish instance, something like:
<glassfish>/nodeagents/<host>/<servername>/imq/instances/<clustername><instancename>/log
Nigel
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