Centos 使用init.d脚本在一台服务器中启动多个tomcat实例
我正在尝试配置tomcat init.d start脚本以处理多个实例(此时为2个实例) 下面是创建init.d脚本的示例脚本Centos 使用init.d脚本在一台服务器中启动多个tomcat实例,centos,tomcat7,multiple-instances,init.d,Centos,Tomcat7,Multiple Instances,Init.d,我正在尝试配置tomcat init.d start脚本以处理多个实例(此时为2个实例) 下面是创建init.d脚本的示例脚本 #!/bin/bash # # tomcat This shell script takes care of starting and stopping Tomcat # # chkconfig: - 80 20 # ### BEGIN INIT INFO # Provides: tomcat # Required-Start: $network $syslog
#!/bin/bash
#
# tomcat This shell script takes care of starting and stopping Tomcat
#
# chkconfig: - 80 20
#
### BEGIN INIT INFO
# Provides: tomcat
# Required-Start: $network $syslog
# Required-Stop: $network $syslog
# Default-Start:
# Default-Stop:
# Short-Description: start and stop tomcat
### END INIT INFO
TOMCAT_USER=root
TOMCAT_HOME="/opt/tomcat7/node1"
SHUTDOWN_WAIT=45
tomcat_pid() {
echo `ps aux | grep org.apache.catalina.startup.Bootstrap | grep -v grep | awk '{ print $2 }'`
}
start() {
pid=$(tomcat_pid)
if [ -n "$pid" ]
then
echo "Tomcat is already running (pid: $pid)"
else
# Start tomcat
echo "Starting tomcat service"
/bin/su - -c "cd $TOMCAT_HOME/bin && $TOMCAT_HOME/bin/startup.sh" $TOMCAT_USER
fi
return 0
}
stop() {
pid=$(tomcat_pid)
if [ -n "$pid" ]
then
echo "Stoping Tomcat"
/bin/su - -c "cd $TOMCAT_HOME/bin && $TOMCAT_HOME/bin/shutdown.sh" $TOMCAT_USER
let kwait=$SHUTDOWN_WAIT
count=0
count_by=5
until [ `ps -p $pid | grep -c $pid` = '0' ] || [ $count -gt $kwait ]
do
echo "Waiting for processes to exit. Timeout before we kill the pid: ${count}/${kwait}"
sleep $count_by
let count=$count+$count_by;
done
if [ $count -gt $kwait ]; then
echo "Killing processes which didn't stop after $SHUTDOWN_WAIT seconds"
kill -9 $pid
fi
else
echo "Tomcat is not running"
fi
return 0
}
case $1 in
start)
start
;;
stop)
stop
;;
restart)
stop
start
;;
status)
pid=$(tomcat_pid)
if [ -n "$pid" ]
then
echo "Tomcat is running with pid: $pid"
else
echo "Tomcat is not running"
fi
;;
esac
exit 0
问题是
tomcat_pid()
方法返回所有tomcat实例的进程ID,因此,第二个实例无法启动。是否有更好的方法来处理此问题?找到了解决方法,但希望得到更好的解决方案
使用netstat,我们可以通过运行端口号找到进程id
echo `netstat -tlnp | awk '/:80 */ {split($NF,a,"/"); print a[1]}'`
因此,我修改了函数tomcat_pid(),如下所示
tomcat_pid(){
echo`netstat-tlnp | awk'/:*/{split($NF,a,“/”);print a[1]}`
}
tomcat_pid() {
echo `netstat -tlnp | awk '/:<port> */ {split($NF,a,"/"); print a[1]}'`
}