Service Bus 12c: Stuck threads due to 'java.util.concurrent.Semaphore$NonfairSync' When 'sendMessageAsync' Holds Semaphore

(Doc ID 2328648.1)

Last updated on FEBRUARY 27, 2018

Applies to:

Oracle Service Bus - Version 12.2.1.2.0 and later
Information in this document applies to any platform.

Symptoms

On : 12.2.1.2.0 version, Product Installation

After restarting the environment or importing projects, stuck threads begin appearing intermittently in the OSB logs and the health of the OSB servers go into a warning state. The stuck threads always point to java.util.concurrent.Semaphore$NonfairSync

ERROR
-----------------------


STEPS
-----------------------
The issue can be reproduced at will with the following steps:
1. Restart environment
2. When the servers are up and running, stuck threads can be seen.

BUSINESS IMPACT
-----------------------
The issue has the following business impact:
Due to this issue, the environment becomes unstable and has to be restarted.

Changes

 

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms