Xmx/Xms startup parameters when starting managed server thru nodemanager

Yesterday I've got some panic with my WLS installation cluster which working sometime in production when I decide to check java process with "ps -ef" and see Xmx512m )I use WLS12c on OELx64.

Simple case:

1.Set managed server startup arguments thru console(or setArguments while domain creation) and check that setting reflected correctly in nodemanager startup properties.

-bash-3.2$ cat $DOMAIN_HOME/servers/alfa/data/nodemanager/startup.properties

#Server startup properties

Arguments=-jrockit -Xms2340m -Xmx2340m

...

-bash-3.2$ cat $WL_HOME/common/nodemanager/nodemanager.properties | grep StartScriptEnabled

StartScriptEnabled=true

...

2. Start managed server thru startManagedWebLogic.sh without USER_MEM_ARGS