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OUD 12c: Start / Stop via WLS Scripts Consumes Over 100% CPU and Java Process "" and/or "" Shows High CPU Utilization (Doc ID 2832398.1)

Last updated on JANUARY 18, 2024

Applies to:

Oracle Unified Directory - Version and later
Information in this document applies to any platform.


Start / Stop of Oracle Unified Directory (OUD) CPU utilization is 100% +.

Implemented the following architecture for OUD:

Oracle® Fusion MiddlewareInstalling Oracle Unified Directory 12c (
Chapter 2 Installing the Oracle Unified Directory Software
Section 2.6.2 Configuring OUD and OUDSM in Separate Domains

In the Oracle Domain for OUD, directory instances instance_1 and instance_2, are in the <oud_domain>.

Able to start and stop the instance_1 and instance_2 from nodemanger using the wlst command.

Able stop and start instance_1 and instance_2 with the command.

But when running either of the above commands, CPU utilization hits 100% plus.

It looks like the Java process is constantly being recreated.

The PID's kept recycling, so could not even do a ps -ef | grep <pid> because the pid(s) are fleeting and are gone too fast.

The high CPU usage is generated by the following two processes, for example:

oracle    7725  7670 99 14:15 pts/0    00:00:27   /usr/java/jdk1.8.0_131/bin/java  -DORACLE_HOME=<oracle_home>/oracle_common -Xms32m  -Xmx1024m weblogic.WLST -i /tmp/

oracle    7609  7554 99 14:13 pts/0    00:01:2    /usr/java/jdk1.8.0_131/bin/jav   -DORACLE_HOME=<oracle_home>/oracle_common -Xms32m  -Xmx1024m weblogic.WLST -i /tmp/

No corresponding log errors are recorded.

The servers are not being accessed, no load or traffic involved.

If starting the server using command start-ds, the the CPU utilization is < 5% on all java services.




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