UMA Agent - Total Containers value is not correct at the node level

Products

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

Issue/Introduction

Total containers metric is less than Openshift command output.

Resolution

Case had two issues

1. Not having a correct Total running container count.

. Validated that the total running container matched the actual command output on the node in the customer environment.. 

2. "Total Non Running Containers" shows 0 for most of time.

UMA doesn't consider the terminated containers as non-running. Considering terminated containers as non-running will impact the the metric and will suppress the actual problematic container count. So for this reason UMA, excludes the terminated containers for this metric calculation.

As per the document  

The documentation will be updated to reflect this.