Identify running objects

 

MBean servers can be queryed using AdminControl queryNames. For example...

$AdminControl queryNames *

The queryNames method takes one argument, ObjectName. In the example above, the asterisk (*) is a wildcard that returns all objects.

ObjectName has two parts...

1. domain
2. List of key properties

Within WAS, the default domain is "WebSphere". The query above is equivalent to...

$AdminControl queryNames WebSphere:*

Common key properties include...

• name
• type
• cell
• node
• process
• mbeanIdentifier

For example...

$AdminControl queryNames WebSphere:type=Server,node=node,*

...returns a list of all MBeans that represent server objects running on node node, with the * at the end of the ObjectName object a JMX wildcard. For example, if you enter the following...

$AdminControl queryNames WebSphere:type=Server,node=node

...you get an empty list back because the argument to queryNames is not a wildcard. There is no Server MBean running that has exactly these key properties and no others.

If you want to see all the MBeans representing applications running on a particular node, invoke the following example...

$AdminControl queryNames WebSphere:type=Application,node=node,*

 

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