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5.4 Monitoring
There are several options and interfaces available for monitoring an eXtreme Scale deployment environment:
- The Statistics API, a direct interface to eXtreme Scale's internal statistics tree (see http://publib.boulder.ibm.com/infocenter/wxsinfo/v7r1/index.jsp?topic=/com.ibm.websphere.extremescale.prog.doc/txsmonitorstats.html)
- The WAS performance monitoring infrastructure (PMI) and Tivoli Performance Viewer
- MBeans statistics
- The xsadmin utility
- Logs and traces
- Tools like IBM Tivoli Monitoring, Hyper HQ and CA Wily Introscope
Most of these statistics monitoring options are built on an internal statistics tree but are used for different reasons. In this chapter we will be focusing on the xsadmin utility and PMI to monitor session management on eXtreme Scale. For more information about other monitoring options, see Section 3.8, Monitoring eXtreme Scale.