Nodemanger Heap Size Change In Weblogic 12.2.1 and 12.2.1.1 and Higher (Doc ID 2189734.1)

Last updated on APRIL 15, 2017

Applies to:

Oracle WebLogic Server - Version 12.2.1.0.0 to 12.2.1.2.0 [Release 12c]
Information in this document applies to any platform.

Symptoms

In WebLogic 12.2.1 and higher, when trying to increase the heap size of nodemanager process, in startNodemanager.sh, it doesn't work.  For eg, increased the MEM_ARGS="-Xms512m -Xmx512m" in startNodeManager.sh but the values will not take effect.

There are no error messages but the NodeManager always uses MEM_ARGS as -Xms32m -Xmx200m even if you specified MEM_ARGS="-Xms512m -Xmx512m" in startNodeManager.sh



Changes

 From WLS 12.2.1 onwards the implementation has changed a bit and now commEnv.sh script calls the two internal scripts below:

. $MW_HOME/oracle_common/common/bin/commBaseEnv.sh

. $MW_HOME/oracle_common/common/bin/commExtEnv.sh

The actual memory parameter is present in commBaseEnv.sh (Unix) / commBaseEnv.cmd (Windows)

Cause

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