Increasing/Decreasing Heap Size of the Weblogic JVM

BEFORE:

$ ps -ef|grep Xms
oracle 32751 32700 36 21:50 ?        00:03:54 /u01/app/jdk1.8.0_91/bin/java -server -Xms512m -Xmx1024m -Dweblogic.Name=AdminServer


To change the Xms and Xmx parameter update the env file at "$DOMAIN_HOME/bin/setDomainEnv.sh" with values below and stop and start the weblogic instance for the changes to take effect.

USER_MEM_ARGS="-Xms256M -Xmx256M"
export USER_MEM_ARGS

i.e.

$ grep USER_MEM_ARGS setDomainEnv.sh
# USER_MEM_ARGS   - The variable to override the standard memory arguments
# IF USER_MEM_ARGS the environment variable is set, use it to override ALL MEM_ARGS values

USER_MEM_ARGS="-Xms256M -Xmx256M"
export USER_MEM_ARGS
 
if [ "${USER_MEM_ARGS}" != "" ] ; then
        MEM_ARGS="${USER_MEM_ARGS}"





AFTER:

$ ps -ef|grep Xms
oracle 3506  3455 76 22:57 ?        00:01:38 /u01/app/jdk1.8.0_91/bin/java -server -Xms256M -Xmx256M -Dweblogic.Name=AdminServer