tomcat维护脚本

茅屋为秋风

#!/bin/bash
#
# chkconfig: - 99 28
# description: Starts/Stops/restart Tomcat
#
#Location of JAVA_HOME (bin files)
export JAVA_HOME=/usr/local/java
#Add Java binary files to PATH
export PATH=$JAVA_HOME/bin:$PATH
#CATALINA_HOME is the location of the bin files of Tomcat  
export CATALINA_HOME=/root/tomcat-test01
#CATALINA_BASE is the location of the configuration files of this instance of Tomcat
export CATALINA_BASE=/root/tomcat-test01
#TOMCAT_USER is the default user of tomcat
export TOMCAT_USER=root
#TOMCAT_USAGE is the message if this script is called without any options
TOMCAT_USAGE="Usage: $0 {\e[00;32mstart\e[00m|\e[00;31mstop\e[00m|\e[00;32mstatus\e[00m|\e[00;31mrestart\e[00m}"
#SHUTDOWN_WAIT is wait time in seconds for java proccess to stop
SHUTDOWN_WAIT=20
tomcat_pid() {
#   echo `ps -fe | grep $CATALINA_BASE | grep -v grep | tr -s " "|cut -d" " -f2`
    echo `ps -fe | grep $CATALINA_BASE | grep $JAVA_HOME | grep -v grep | tr -s " "|cut -d" " -f2`
}
start() {
  pid=$(tomcat_pid)
  if [ -n "$pid" ]
  then
    echo -e "\e[00;31mTomcat is already running (pid: $pid)\e[00m"
  else
    # Start tomcat
    echo -e "\e[00;32mStarting tomcat\e[00m"
    #ulimit -n 100000
    #umask 007
    #/bin/su -p -s /bin/sh tomcat
        if [ `user_exists $TOMCAT_USER` = "1" ]
        then
                su $TOMCAT_USER -c $CATALINA_HOME/bin/startup.sh
        else
                sh $CATALINA_HOME/bin/startup.sh
        fi
        status
  fi
  return 0
}
status(){
          pid=$(tomcat_pid)
          if [ -n "$pid" ]; then echo -e "\e[00;32mTomcat is running with pid: $pid\e[00m"
          else echo -e "\e[00;31mTomcat is not running\e[00m"
          fi
}
stop() {
  pid=$(tomcat_pid)
  if [ -n "$pid" ]
  then
    echo -e "\e[00;31mStoping Tomcat\e[00m"
    #/bin/su -p -s /bin/sh tomcat
        sh $CATALINA_HOME/bin/shutdown.sh
    let kwait=$SHUTDOWN_WAIT
    count=0;
    until [ `ps -p $pid | grep -c $pid` = '0' ] || [ $count -gt $kwait ]
    do
      echo -n -e "\n\e[00;31mwaiting for processes to exit\e[00m";
      sleep 1
      let count=$count+1;
    done
    if [ $count -gt $kwait ]; then
      echo -n -e "\n\e[00;31mkilling processes which didn't stop after $SHUTDOWN_WAIT seconds\e[00m"
      kill -9 $pid
    fi
  else
    echo -e "\e[00;31mTomcat is not running\e[00m"
  fi
  return 0
}
user_exists(){
        if id -u $1 >/dev/null 2>&1; then
        echo "1"
        else
                echo "0"
        fi
}
case $1 in
        start)
          start
        ;;
        stop)  
          stop
        ;;
        restart)
          stop
          start
        ;;
        status)
                status
        ;;
        *)
                echo -e $TOMCAT_USAGE
        ;;
esac   
exit 0