Date Created: Thu 04-Aug-2011

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    Access PMI data with the JMX interface

    You can use the AdminClient Java Management Extension (JMX) interface to invoke methods on MBeans. The AdminClient API can retrieve Performance Monitoring Infrastructure (PMI) data with PerfMBean or with individual MBeans.

    Individual MBeans provide the Stats attribute from which you can get PMI data. PerfMBean provides extended methods for PMI administration and more efficient ways to access PMI data. To set the PMI module instrumentation level, you must invoke methods on PerfMBean. To query PMI data from multiple MBeans, it is faster to invoke the getStatsArray method in PerfMBean than to get the Stats attribute from multiple individual MBeans. PerfMBean can deliver PMI data in a single JMX cell, but multiple JMX calls must be made through individual MBeans.

    If you want to retrieve PMI data with an individual MBean, see Use individual MBeans.

    After the performance monitoring service is enabled and the application server is started or restarted, a PerfMBean is located in each application server. This PerfMBean provides access to PMI data. To use PerfMBean, follow these steps:

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Steve Robinson - IBM Champion 2013

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Steve Robinson has been working in IT for over 20 years and has provided solutions for many large-enterprise corporate companies across the world. Steve specialises in Java and Middleware.

In January 2013, I was awarded the prestigous 'IBM Champion' accolade.


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