DX APM is down and unable to access

Products

• CA Application Performance Management (APM / Wily / Introscope)
• DX Operational Intelligence

Issue/Introduction

DX APM 20.2  is completely unavailable. 

The directory /dxi on the 3 elastic nodes got into 100%, elastic pods are crashing.

Cause

We found that there are some older Transaction Trace indices indices that are not deleted.

Environment

Release : 20.2

Component : Introscope

Resolution

Manually deleted some old Transaction Trace indices and the elastic pods stopped to crash.