CentOS 6.6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. 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