IBM Support

OutOfMemoryError During IBM Content Navigator Deployment Caused by Low WebSphere Heap Size (Increase Xmx)

Troubleshooting


Problem

During IBM Content Navigator (ICN) deployment, the process fails and the following error appears in the ICN configuration and deployment console.

Symptom

java/lang/OutOfMemoryError

Cause

The error occurs when the IBM WebSphere (WAS) heap size is insufficient.

Resolving The Problem

Increase the maximum heap size in the wsadmin.sh (Linux/UNIX) or wsadmin.bat (Windows) file, as appropriate for the operating system.

Generally the wsadmin file is located in the following folder:
\IBM\WebSphere\AppServer\bin

The default maximum heap size is 256 megabytes (Xmx256m):
PERFJAVAOPTION=-Xms256m -Xmx256m -Xquickstart

Increase the maximum heap size to 512 megabytes (Xmx512m) to prevent the error:
PERFJAVAOPTION=-Xms256m -Xmx512m -Xquickstart

Make a backup of this file before making any changes.

[{"Product":{"code":"SSEUEX","label":"IBM Content Navigator"},"Business Unit":{"code":"BU056","label":"Miscellaneous"},"Component":"Not Applicable","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF033","label":"Windows"}],"Version":"2.0.3;2.0.2.4;2.0.2.3;2.0.2.2;2.0.2.1;2.0.2","Edition":"","Line of Business":{"code":"LOB18","label":"Miscellaneous LOB"}}]

Document Information

Modified date:
12 September 2026

UID

swg21696494

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