PMI data collection


 

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PMI data collection can occur in three different interfaces...

JMX Interface

JMX interface is part of the J2EE spec and the recommended way to gather WAS performance data. PMI data can be gathered from...

  • J2EE managed object MBeans
  • WAS PMI Perf MBean

While the J2EE MBeans provide performance data about the specific component, the Perf MBean acts as a gateway to the WAS PMI service, and provides access to the performance data for all the components.

Performance Servlet

Performance Servlet provides a way to use an HTTP request to query the PMI data for the entire WAS admin domain. Since the servlet provides the performance data through HTTP, issues such as firewalls are trivial to resolve. The performance servlet outputs the PMI data as an XML document.

PMI client API (deprecated)

PMI client API provides a wrapper class to deliver PMI data to a client. The PMI client API uses the JMX infrastructure and the Perf MBean to retrieve the PMI data. PMI client provides the data using a WAS-specific data structure.

PMI client API provides a wrapper class to deliver PMI data to a client. The PMI client API uses the JMX infrastructure and the Perf MBean to retrieve the PMI data. PMI client provides the data using a WAS-specific data structure.





Related concepts

PMI architecture
Performance Monitoring Infrastructure (PMI)

 

Related tasks


Monitor overall system health