Select the objects and properties associated
with the Java™ Virtual Machine (JVM) that you want to change.
To change these properties, you must specify the broker name,
and set the ObjectName to ComIbmJVMManager.
If you are setting a debug port number, you must also include -e and
specify the name of the execution group which will use the port. If you are
changing the heap size, omit -e; the size is effective
for all execution groups created in the broker.
- -n jvmMinHeapSize
- The minimum size of the storage available to the JVM.
- -n jvmMaxHeapSize
- The maximum size of the storage available to the JVM. If you have configured
a publish/subscribe domain, when execution groups retain publications, you
might need to increase this value. If you have included the XMLTransformation node
in one or more message flows, and the node is processing very large XML messages,
you might also need to change this parameter.
- -n jvmDebugPort
- The port on which the execution group is listening. You must set a port
number to activate debug in the execution group.
- Value type - integer
- Initial value - 0
See the mqsichangeproperties command for examples
of how to change parameters for the JVM. Other examples are provided for particular
tasks: