alerts about EM Overall Capacity

Products

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

Issue/Introduction

We are getting alerts about EM Overall Capacity (%)
The "EM Overall Capacity (%) - Caution" is set at 75& and  "EM Overall Capacity (%) -  Danger" is set at 90%.
How can we avoid unnecessary alerts?

Environment

Release:
Component: APMISP

Resolution

The Alert came with "Supportability.jar" Manage Module which could have threshold based on the old GC settings (CMS parallel GC and GC kickoff at 50%). We are now changing the default GC algorithm to G1GC for newer JVM versions and also bigger heap size. For the Alert definition, it is hard to configure a proper threshold for every environment -- each one might have different configurations. Based on this information, it would be better to make additional adjustments to threshold, so that we do not get unnecessary alerts.