Separate heap settings in standalone.conf and domain.conf from rest of JAVA_OPTS -------------------------------------------------------------------------------- Key: WFCORE-2925 URL: https://issues.jboss.org/browse/WFCORE-2925 Project: WildFly Core Issue Type: Enhancement Components: Scripts Reporter: Brian Stansberry Assignee: James Perkins Let's do this: {code} if [ "x$JBOSS_JAVA_SIZING" = "x" ]; then JBOSS_JAVA_SIZING="-Xms64m -Xmx512m -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=256m" fi if [ "x$JAVA_OPTS" = "x" ]; then JAVA_OPTS="$JBOSS_JAVA_SIZING -Djava.net.preferIPv4Stack=true" JAVA_OPTS="$JAVA_OPTS -Djboss.modules.system.pkgs=$JBOSS_MODULES_SYSTEM_PKGS -Djava.awt.headless=true" else echo "JAVA_OPTS already set in environment; overriding default settings with values: $JAVA_OPTS" fi {code} That will allow users to easily control memory sizing by setting that specific env var externally while still relying on our defaults for all the other fussy stuff in JAVA_OPTS. The JBOSS_JAVA_SIZING name was 20 secs of thought on my part.