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Intelligent Management: health controller custom properties

We can use health controller custom properties to change the behavior of the health controller. For example, we can change the amount of time that passes before a runtime task that is generated for a health issue expires.


_CEE_DMPTARG

The _CEE_DMPTARG custom property specifies the location used for thread dumps on z/OS systems.

Set the _CEE_DMPTARG custom property value if you configure health policies that perform thread dumps on z/OS systems. This custom property sets the location where the thread dumps occur for a particular server.

Value Description
Scope Application server
Valid value A string that indicates the location where to save the thread dumps


com.ibm.ws.xd.hmm.controller.ControlConfig.approvalTimeOutMinutes

The com.ibm.ws.xd.hmm.controller.ControlConfig.approvalTimeOutMinutes custom property specifies the number of minutes for the approval timeout of runtime tasks for the health controller.

Set the JVM (JVM) custom property when we are using the supervise reaction mode. Number of minutes that can pass before a runtime task for the health controller expires. If we set the value to 5 minutes or less, the default value of 30 minutes is automatically used instead. If we do not take any actions on the runtime task, the task expires in the number of minutes specified in this property. If the runtime task expires when the health condition still exists, a new runtime task is generated.

Value Description
Scope JVM
Valid value Minutes
Default 30 minutes


maxHeapDumps

We can set the maxHeapDumps custom property to control the number of heap dumps that are taken per runtime task.

Value Description
Scope Cell
Valid values Integer value greater than 0
Default 3


usexdHeapModule

We can set the usexdHeapModule custom property so that only the amount of free heap after a full garbage collection is sampled. Otherwise, the heap might include temporary Java objects.

In releases prior to Version 7.0, the excessive memory health policy calculated the amount of heap used by a JVM by periodically sampling the amount of free heap.

Value Description
Scope Cell
Valid values true: Only the amount of free heap after a full garbage collection is sampled.

false: The amount of free heap is periodically sampled independent of the garbage collection cycle.

Default value false


Related concepts

  • Health management


    Related tasks

  • Configure health management
  • Create health policies

  • Intelligent Management: health policy administrative tasks