export CATALINA_OPTS="$CATALINA_OPTS -Xms512M -Xmx4096M"
export CATALINA_OPTS="$CATALINA_OPTS -XX:NewSize=512m -XX:MaxNewSize=3072m"
export CATALINA_OPTS="$CATALINA_OPTS -XX:NewRatio=1"
export CATALINA_OPTS="$CATALINA_OPTS -XX:SurvivorRatio=3"