My Oracle Support Banner

Oc4j Cluster Hangs & Oc4j Restarts With Or Without Load Due to Unresponsiveness (Doc ID 1422043.1)

Last updated on MARCH 26, 2021

Applies to:

Oracle Containers for J2EE - Version 10.1.3.5.0 and later
Information in this document applies to any platform.

Symptoms


In an Active-Passive AS 10.1.3.5 cluster, OC4J instances appear to be in hang status.
OPMN reports it has to restart the OC4J instances due to unresponsiveness

After taking thread dumps of the hung JVM , we could observe big contention in the session replication involved threads as follows:

Changes

 

Cause

To view full details, sign in with your My Oracle Support account.

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


In this Document
Symptoms
Changes
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.