Unable to collect the metrics for JMX MBean attribute memoryUsageAfterGc by CA APM Agent

Products

• CA Application Performance Management Agent (APM / Wily / Introscope)
• INTROSCOPE

Issue/Introduction

After installing the APM Agent, enabling JMX monitoring and also set introscope.agent.jmx.compositedata.enable=true, users are unable to collect metrics for attribute memoryUsageAfterGc under JMX MBean java.lang:type=GarbageCollector

Environment

APM 9.x, 10.x
Weblogic 10.x, 11.x, 12.x

Cause

The metrics for "memoryUsageAfterGc" in JMX MBean attribute are TabularData as below screenshot shows.

 

Resolution

The TabularData is outside of the current design for APM Agent JMX monitoring.