search cancel

NoRedef Agent - enable NIO metrics

book

Article ID: 216382

calendar_today

Updated On:

Products

CA Application Performance Management (APM / Wily / Introscope)

Issue/Introduction

 

Due to a large number of metrics in the environment the NoRedef agent configuration is used

However, there is a need to have the NIO metrics which are not collected by the NoRedef agent.


Is there a way to customize NoRedef agent to enable monitoring NIO for example by adding proper .pbl?

 

Environment

Release : 10.7.0

Component : Integration with APM

Cause

 

The NoRedef agent disables a number of things to avoid potential performance issues, sometimes seen where monitoring applications running in IBM JDK.

NIO classes are part of the Java Platform, system classes beginning with java.* and such classes require bootstrap instrumentation to be enabled.

The NoRedef configuration disables bootstrap class instrumentation as it relies on class redefinition / class retransformation, which are disabled in that version of the agent.

Resolution

 

As such the NoRedef configuration cannot be used to instrument NIO classes but some of the options in NoRedef profile can be used which may reduce metrics through reduced instrumentation:

introscope.autoprobe.deepinheritance.enabled=false

introscope.agent.deep.entrypoint.enabled=false

introscope.agent.deep.automatic.backend.detection=false

introscope.autoprobe.dynamicinstrument.enabled=false

Additional Information

 

https://techdocs.broadcom.com/us/en/ca-enterprise-software/it-operations-management/application-performance-management/10-7/implementing-agents/java-agent/install-the-java-agent/configure-application-server-to-use-the-java-agent.html