* tomcat setenv.sh 설정
  메모리는 H/W 환경에 맞추어 설정한다.

export CATALINA_OPTS="$CATALINA_OPTS -Xms512m -Xmx1024m"
export CATALINA_OPTS="$CATALINA_OPTS -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled"
export CATALINA_OPTS="$CATALINA_OPTS -XX:MaxMetaspaceSize=256m"
export CATALINA_OPTS="$CATALINA_OPTS -verbose:gc -Xloggc:/path/to/gc.log"

* ./shutdown.sh

* ./startup.sh