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Troubleshooting Memory leak OutOfMemoryErrors in UCM 11g Using JRockit Flight Recorder (Doc ID 1337135.1)

Last updated on JULY 26, 2023

Applies to:

Oracle WebCenter Content - Version and later
Information in this document applies to any platform.


If OutOfMemory errors in UCM 11g appear in the log files or system output, a memory leak may be occurring. These errors can cause UCM performance to come to a halt.  This note contains steps for troubleshooting memory leak issues using JRockit Flight Recorder.  If using the Sun JVM, VisualVM can be used, as described in the following note.

<Note.950621.1> - Use VisualVM Tools to Troubleshoot UCM and Observe Performance Problems Occurring in Java Virtual Machine  

<Note.960595.1> - Example of How To Troubleshoot a Memory Leak in UCM Custom Component Using VisualVM

If you are using Webcenter Content 12c you should use the newer JDK Mission Control (the steps in this Note will still generally apply),  however, see this:  Note 2963921.1

OOM errors in 11g appear in the log file or server output:


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In this Document
 Determine the Process ID of UCM 11g Content Server
 Start JRockit Mission Control
 Start Flight Recording
 Matching the OutOfMemory error to the Spike in the Flight Recording
Inspecting the Custom Component for causes of the Memory Leak
 Still have questions?

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