Pre-requisites –

RHEL or CentOS 7 with WAS ND v9 installed

Health management is the process by which Intelligent Management dynamic operations monitor and manage servers to preserve an optimal server environment. The health monitor uses health policies. A health policy is a combination of health conditions and actions. 

Health conditions define triggers from which the system can protect itself, for example, a memory leak

Health actions are the specific steps that the system takes when a health condition is triggered

Intelligent Routing– Requests to applications are prioritized and routed based on administrator defined rules

Health Management – Detect specific defined conditions automatically and take corrective action

Application Edition Management – Roll out new versions of applications without any downtime

Performance Management – Provides a self-optimized middleware infrastructure

Procedure –

By default, Health Management is enabled, You can check the below file for verifying if its enabled or disabled

wsadmin> AdminTask.createHealthPolicy(‘[-name TestHealth -description TestHealth -reactionMode AUTOMATIC  -addMember [[SERVER server2 desktop1Node01] [SERVER server1 desktop1Node01]] -addCondition [-type AGE -params [ [ageUnits MINUTES] [maxAge 2] ]] -addAction [[RESTART_SERVER 1 “” “” “”]]]’)

wsadmin>AdminConfig.save()

wsadmin>AdminTask.listHealthPolicies()

u’TestHealth(cells/desktop1Cell01/healthclasses/TestHealth|healthclass.xml)’

As we have created the health policy is automatic mode, the two JVM’s gets restarted after 2 minutes automatically

Here you can add an additional action of taking thead and heap dumps before restarting the JVM by mentioning the action in the Health Policy already