After enabling the Java Agent our application ran Out of the Thread limit

Products

• DX APM SaaS
• DX Application Performance Management

Issue/Introduction

After enabling the Java Agent our application has ran out of the thread limit (controlled by the nproc limit in Linux OS Config) which prevented from launching the app admin or unable to login to the app server.

We took some threadumps and notified a high number of Waiting Threads in "com/wily/EDU/oswego/cs/dl/util/concurrent/BoundedLinkedQueue.class"

Environment

DX APM Agents 24.8 and below

Cause

The problem is related to defect # DE603221 / DE616182.

The leaking "PO Exception Async Executor" threads issue is fixed in 24.9.1.

Resolution

Upgrade to JavaAgent 24.9.1

Additional Information

Techdocs APM Agents - Release Notes