Centos 6.3安装配置supervisor进程管理工具

 1.         Supervisor是一个C/S系统,它可以在类unix操作系统让用户来监视和控制后台服务进程的数量，一个很重要的功能就是监控服务器的主要后台进程，并在出现问题是自动重启。

 

2.         根据服务器上的python版本下载对应的setuptools

[root@test1 ~]# python -V Python 2.6.6 wget http://pypi.python.org/packages/2.6/s/setuptools/setuptools-0.6c11-py2.6.egg#md5=bfa92100bd772d5a213eedd356d64086 直接安装 sh setuptools-0.6c11-py2.6.egg

 

3.         下载并安装supervisor

wget http://pypi.python.org/packages/source/s/supervisor/supervisor-3.0b1.tar.gz tar -zxvf supervisor-3.0b1.tar.gz cd supervisor-3.0b1 python setup.py install   安装setuptools后也可以 easy_install supervisor

 

4.         设定supervisor配置文件

创建默认的配置文件 echo_supervisord_conf  >/etc/supervisord.conf vi /etc/supervisord.conf   取消以下的注释,并修改IP为0.0.0.0 [inet_http_server]         ; inet (TCP) server disabled by default port=0.0.0.0:9001        ; (ip_address:port specifier, *:port for all iface) username=user              ; (default is no username (open server)) password=123               ; (default is no password (open server))   增加自定义的后台进程(注意进程名之间用一个:分隔) [program:hello] command=python /root/hello.py priority=1 numprocs=1 autostart=true autorestart=true startretries=10 stopsignal=KILL stopwaitsecs=10 redirect_stderr=true stdout_logfile=/root/hello.log

 

5.         设定supervisor启动文件

vi /etc/init.d/supervisord   #! /bin/sh PATH=/sbin:/bin:/usr/sbin:/usr/bin PROGNAME=supervisord DAEMON=/usr/bin/$PROGNAME CONFIG=/etc/$PROGNAME.conf PIDFILE=/tmp/$PROGNAME.pid DESC="supervisord daemon" SCRIPTNAME=/etc/init.d/$PROGNAME # Gracefully exit if the package has been removed. test -x $DAEMON || exit 0   start() {         echo -n "Starting $DESC: $PROGNAME"         $DAEMON -c $CONFIG         echo "..." } stop() {         echo -n "Stopping $DESC: $PROGNAME"         supervisor_pid=$(cat $PIDFILE)         kill -15 $supervisor_pid         echo "..." } case "$1" in   start)         start         ;;   stop)         stop         ;;   restart)         stop         start         ;;   *)         echo "Usage: $SCRIPTNAME {start|stop|restart}" >&2         exit 1         ;; esac exit 0

 

6.          写一个简单的python脚本

安装web.py easy_install web.py   vi /root/hello.py   import web urls = (     '/(.*)', 'hello' ) app = web.application(urls, globals())   class hello:     def GET(self, name):         if not name:             name = 'World'         return 'Hello, ' + name + '!'   if __name__ == "__main__":     app.run()

 

7.         启动supervisor服务,并观察hello服务状态

/etc/init.d/supervisord start   查看日志 tail -f /tmp/supervisord.log 2012-11-09 15:33:53,367 WARN received SIGTERM indicating exit request 2012-11-09 15:33:53,367 INFO waiting for :hello to die 2012-11-09 15:33:53,371 INFO stopped: :hello (terminated by SIGKILL) 2012-11-09 15:33:53,514 CRIT Supervisor running as root (no user in config file) 2012-11-09 15:33:53,552 INFO RPC interface 'supervisor' initialized 2012-11-09 15:33:53,552 CRIT Server 'unix_http_server' running without any HTTP authentication checking 2012-11-09 15:33:53,560 INFO daemonizing the supervisord process 2012-11-09 15:33:53,562 INFO supervisord started with pid 13698 2012-11-09 15:33:54,568 INFO spawned: ':hello' with pid 13699 2012-11-09 15:33:55,572 INFO success: :hello entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)   可以使用supervisorctl管理进程 upervisorctl status        查询状态 supervisorctl start hello    开启服务 supervisorctl stop hello    关闭服务

 

8.         之前配置文件开启了web访问,这样可以直接通过浏览器观察和控制进程，非常方便

 

 

参考资料

http://chenxiaoyu.org/2011/05/31/python-supervisor.html

http://supervisord.org/index.html