Show Table of Contents
11.3. System/JVM metrics
- AverageSystemLoadMetric
- Returns CPU load
- Requires Java 1.6+.
- Uses OperatingSystemLoadMetricSource to generically read attributes
For example:<bean name="AverageSystemLoadMetric" class="org.jboss.modcluster.load.metric.impl.AverageSystemLoadMetric" mode="On Demand"> <annotation>@org.jboss.aop.microcontainer.aspects.jmx.JMX(name="jboss.web:service=AverageSystemLoadMetric",exposedInterface=org.jboss.modcluster.load.metric.LoadMetricMBean.class)</annotation> <constructor> <parameter><inject bean="OperatingSystemLoadMetricSource"/></parameter> </constructor> </bean> <bean name="OperatingSystemLoadMetricSource" class="org.jboss.modcluster.load.metric.impl.OperatingSystemLoadMetricSource" mode="On Demand"> </bean>
- SystemMemoryUsageLoadMetric
- Returns system memory usage
- Requires com.sun.management.OperatingSystemMXBean (available in Sun's JDK or OpenJDK)
- Uses OperatingSystemLoadMetricSource to generically read attributes
For example:<bean name="SystemMemoryUsageLoadMetric" class="org.jboss.modcluster.load.metric.impl.SystemMemoryUsageLoadMetric" mode="On Demand"> <annotation>@org.jboss.aop.microcontainer.aspects.jmx.JMX(name="jboss.web:service=SystemMemoryUsageLoadMetric",exposedInterface=org.jboss.modcluster.load.metric.LoadMetricMBean.class)</annotation> <constructor> <parameter><inject bean="OperatingSystemLoadMetricSource"/></parameter> </constructor> </bean>
- HeapMemoryUsageLoadMetric
- Returns the heap memory usage as a percentage of max heap size
For example:<bean name="HeapMemoryUsageLoadMetric" class="org.jboss.modcluster.load.metric.impl.HeapMemoryUsageLoadMetric" mode="On Demand"> <annotation>@org.jboss.aop.microcontainer.aspects.jmx.JMX(name="jboss.web:service=HeapMemoryUsageLoadMetric",exposedInterface=org.jboss.modcluster.load.metric.LoadMetricMBean.class)</annotation> </bean>
Where did the comment section go?
Red Hat's documentation publication system recently went through an upgrade to enable speedier, more mobile-friendly content. We decided to re-evaluate our commenting platform to ensure that it meets your expectations and serves as an optimal feedback mechanism. During this redesign, we invite your input on providing feedback on Red Hat documentation via the discussion platform.