Find Out The Thread That Is Taking High CPU Usage In OC4J
(Doc ID 467624.1)
Last updated on MAY 21, 2021
Applies to:Oracle Containers for J2EE - Version 10.1.2.0.0 to 10.1.3.5.0 [Release AS10gR2 to AS10gR3]
To find out the java thread that is taking high CPU usage in OC4J
This article is specific to Linux due to its threading model and makes specific use of parameters for the ps command that only exist in Linux but not in other operating systems. The general idea from this note might, however, be used on other platforms also, but then requires deeper knowledge of that operating system.
If you are using the JDK 1.4 then you need to set the LD_ASSUME_KERNEL value to 2.4.1 to get the unique nid value.
In JDK 1.5 setting the LD_ASSUME_KERNEL to 2.4.1 is not required.
Add this variable to ORACLE_HOME\opmn\conf\opmn.xml file as follows:
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