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.

Environment

Release : 20.2

Component : Introscope

Cause

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

Resolution

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