CentOS 6.6安装配置supervisor进程管理工具

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　　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
[iyunv@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. 执行如下命令：
vi /etc/init.d/supervisord
　　
　　6.输入如下内容：
　　
注意：该文件中的如下几个变量，都需要根据你实际的目录来改写。
 
PREFIX=/usr/local
 
SUPERVISORD=$PREFIX/bin/supervisord      ##supervisord   程序的安装路径
 
SUPERVISORCTL=$PREFIX/bin/supervisorctl  ##supervisorctl 程序的安装路径
 
PIDFILE=/var/supervisor/supervisord.pid   ##需要先创建/var/supervisor目录
 
LOCKFILE=/var/supervisor/supervisord.lock
 
OPTIONS="-c /etc/supervisord.conf"   ##配置文件的路径
　　
　　

#!/bin/bash
#
# supervisord   This scripts turns supervisord on
# chkconfig:345 83 04
# description:  supervisor is a process control utility.  It has a web based
#  xmlrpc interface as well as a few other nifty features.
#
# source function library
. /etc/rc.d/init.d/functions
set -a
PREFIX=/usr/local
SUPERVISORD=$PREFIX/bin/supervisord
SUPERVISORCTL=$PREFIX/bin/supervisorctl
PIDFILE=/var/supervisor/supervisord.pid
LOCKFILE=/var/supervisor/supervisord.lock
OPTIONS="-c /etc/supervisord.conf"
# unset this variable if you don't care to wait for child processes to shutdown before removing the $LOCKFILE-lock
WAIT_FOR_SUBPROCESSES=yes
# remove this if you manage number of open files in some other fashion
ulimit -n 96000
RETVAL=0

running_pid()
{
# Check if a given process pid's cmdline matches a given name
pid=$1
name=$2
[ -z "$pid" ] && return 1
[ ! -d /proc/$pid ] && return 1
(cat /proc/$pid/cmdline | tr "\000" "\n"|grep -q $name) || return 1
return 0
}
running()
{
# Check if the process is running looking at /proc
# (works for all users)
# No pidfile, probably no daemon present
[ ! -f "$PIDFILE" ] && return 1
# Obtain the pid and check it against the binary name
pid=`cat $PIDFILE`
running_pid $pid $SUPERVISORD || return 1
return 0
}
start() {
echo "Starting supervisord: "
if [ -e $PIDFILE ]; then
echo "ALREADY STARTED"
return 1
fi
# start supervisord with options from sysconfig (stuff like -c)
$SUPERVISORD $OPTIONS
# show initial startup status
$SUPERVISORCTL $OPTIONS status
# only create the subsyslock if we created the PIDFILE
[ -e $PIDFILE ] && touch $LOCKFILE
}
stop() {
echo -n "Stopping supervisord: "
$SUPERVISORCTL $OPTIONS shutdown
if [ -n "$WAIT_FOR_SUBPROCESSES" ]; then
echo "Waiting roughly 60 seconds for $PIDFILE to be removed after child processes exit"
for sleep in  2 2 2 2 4 4 4 4 8 8 8 8 last; do
if [ ! -e $PIDFILE ] ; then
echo "Supervisord exited as expected in under $total_sleep seconds"
break
else
if [[ $sleep -eq "last" ]] ; then
echo "Supervisord still working on shutting down. We've waited roughly 60 seconds, we'll let it do its thing from here"
return 1
else
sleep $sleep
total_sleep=$(( $total_sleep + $sleep ))
fi
fi
done
fi
# always remove the subsys. We might have waited a while, but just remove it at this point.
rm -f $LOCKFILE
}
restart() {
stop
start
}
case "$1" in
start)
start
RETVAL=$?
;;
stop)
stop
RETVAL=$?
;;
restart|force-reload)
restart
RETVAL=$?
;;
reload)
$SUPERVISORCTL $OPTIONS reload
RETVAL=$?
;;
condrestart)
[ -f $LOCKFILE ] && restart
RETVAL=$?
;;
status)
$SUPERVISORCTL $OPTIONS status
if running ; then
RETVAL=0
else
RETVAL=1
fi
;;
*)
echo $"Usage: $0 {start|stop|status|restart|reload|force-reload|condrestart}"
exit 1
esac
exit $RETVAL
　　
　　
　　
保存完毕之后，可以执行以下命令修改文件权限：
 
chmod 777 /etc/init.d/supervisord
 
/etc/init.d/supervisord  start
 
 这样，supervisor就启动了。
　　
　　7. 配置开机启动
　　
执行以下命令：
 
chkconfig supervisord  on
 
 可以以下命令查看是否成功
 
chkconfig --list | grep  supervisord