The JVM Layer
The tests mapped to this layer report the overall health and resource usage of the eG manager's JVM. To pull out JVM-related statistics from the eG manager, the eG agent uses either of the following mechanisms:
- Using SNMP-based access to the Java runtime MIB statistics of the eG manager;
- By contacting the Java runtime (JRE) of the eG manager via JMX
- This is why, each test mapped to the jvm layer provides administrators with the option to pick a monitoring mode - i.e., either jmx or snmp. The remaining test configuration depends upon the mode chosen. Enabling SNMP Support for the eG Manager's JRE
Figure 1 : The tests mapped to the JVM layer
