Several questions regarding custom health policies:
To use the PMI metric driven policies does the PMI service need to be enabled? If so, at what minimum level? I am assuming the answer to this question is yes, but just double checking.
Connection Pool metrics - are these cumulative for the entire JVM? For instance, if my app accesses 3 datasources each with a max of 50 connections, does the health policy look at each individual connection pool or an accumulation (ie. 60 out of 150 connections used)?
Web application module metrics - I may have multiple WARs running in my JVM. How can I write a custom health policy to act on the response time of a given web app?
For the last two questions, would I have to add a subexpression to query an MBean to determine a datasource or web app module?
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2 replies Latest Post - 2012-10-10T17:31:27Z by SystemAdmin
Pinned topic Custom Health Policy questions
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Updated on 2012-10-10T17:31:27Z at 2012-10-10T17:31:27Z by SystemAdmin
Re: Custom Health Policy questions2012-10-10T16:33:31Z in response to SystemAdminYes to your first question. PMI must be enabled to use PMI metrics - default basic level should work in most cases.
Health controller obtains its data from PMI - this link outlines applicable granularity: http://pic.dhe.ibm.com/infocenter/wasinfo/v7r0/topic/com.ibm.websphere.base.iseries.doc/info/iseries/ae/rprf_datacounter2.html
Re: Web app module metrics, wonder if this will help: (extracted from Info Center) - http://pic.dhe.ibm.com/infocenter/wveinfo/v7r0/topic/com.ibm.websphere.virtualenterprise.doc/odoe_task/todhealthpolicy.html
PMIMetric_FromServerStart$webAppModule$SlamSess\#SlamSess.war\/webAppModule.servlets\/SlamSess\/responseTime > 100L