WAS v8.5 > Monitoring > Monitoring overall system healthEnable PMI data page
PMI must be enabled (by default PMI is enabled).
When PMI service is enabled, the monitoring of individual components can be enabled or disabled dynamically. PMI provides four predefined statistic sets that can be used to enable a set of statistics. The following table provides details about the statistic sets. If the predefined statistic sets does not meet your monitoring requirement, the Custom option can be used to selectively enable or disable individual statistics.
Statistic set. Enable PMI using the dmgr console, wsadmin tool, or JVMTI
Statistic set Description None All statistics are disabled. Basic Statistics specified in J2EE 1.4, as well as top statistics like CPU usage and live HTTP sessions are enabled. This set is enabled out-of-the-box and provides basic performance data about runtime and application components. Extended Basic set plus key statistics from various WAS components like WLM, and dynamic caching are enabled. This set provides detailed performance data about various runtime and application components. All All statistics are enabled. Custom Enable or disable statistics selectively. To minimize the monitoring overhead, the updates to CountStatistic, AverageStatistic, and TimeStatistic are not synchronized. Since these statistic types track total and average, the extra accuracy is generally not worth the performance cost. The RangeStatistic and BoundedRangeStatistic are very sensitive; therefore, they are always are synchronized. If needed, updates to all the statistic types can be synchronized by checking the Use sequential update check box.
Enable PMI using one of the following methods:
- Enable PMI
- Enable PMI using wsadmin
- Enable the Java virtual machine profiler data
- Obtain a list of performance counters from the command line
Reference:
Enterprise bean counters
JDBC connection pool counters
J2C connection pool counters
Java virtual machine counters
Object Request Broker counters
Servlet session counters
Transaction counters
Thread pool counters
Web application counters
System counters
Dynamic cache counters
Web services gateway counters
Web services counters
Alarm Manager counters
Object Pool counters
Scheduler counters
DCS stack counters
Extension registry counters