NodeManager Heap Size Change In WebLogic 12.2.1 and 12.2.1.1 and Higher (Doc ID 2189734.1)

Last updated on JUNE 20, 2024

Applies to:

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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