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转自:http://blog.csdn.net/zyz511919766/article/details/43967793
supervisor:C/S架构的进程控制系统,可使用户在类UNIX系统中监控、管理进程。常用于管理与某个用户或项目相关的进程。
组成部分
supervisord:服务守护进程
supervisorctl:命令行客户端
Web Server:提供与supervisorctl功能相当的WEB操作界面
XML-RPC Interface:XML-RPC接口
安装
centos平台下可直接用过YUM源安装
yum info supervisor
sudo yum install supervisor
sudo chkconfig supervisord on
服务器启停
sudo /etc/init.d/supervisord {start|stop|status|restart|reload|force-reload|condrestart}
日志
/var/log/supervisor/supervisord.log
配置文件
sudo vim /etc/supervisord.conf
需要重点关注的是以部分
[program:x]中配置要监控的进程
配置样例
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[supervisord]
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http_port=/var/tmp/supervisor.sock ; (default is to run a UNIX domain socket server)
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;http_port=127.0.0.1:9001 ; (alternately, ip_address:port specifies AF_INET)
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;sockchmod=0700 ; AF_UNIX socketmode (AF_INET ignore, default 0700)
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;sockchown=nobody.nogroup ; AF_UNIX socket uid.gid owner (AF_INET ignores)
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;umask=022 ; (process file creation umask;default 022)
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logfile=/var/log/supervisor/supervisord.log ; (main log file;default $CWD/supervisord.log)
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logfile_maxbytes=50MB ; (max main logfile bytes b4 rotation;default 50MB)
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logfile_backups=10 ; (num of main logfile rotation backups;default 10)
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loglevel=info ; (logging level;default info; others: debug,warn)
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pidfile=/var/run/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
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nodaemon=false ; (start in foreground if true;default false)
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minfds=1024 ; (min. avail startup file descriptors;default 1024)
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minprocs=200 ; (min. avail process descriptors;default 200)
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;nocleanup=true ; (don‘t clean up tempfiles at start;default false)
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;http_username=user ; (default is no username (open system))
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;http_password=123 ; (default is no password (open system))
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;childlogdir=/tmp ; (‘AUTO‘ child log dir, default $TEMP)
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;user=chrism ; (default is current user, required if root)
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;directory=/tmp ; (default is not to cd during start)
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;environment=KEY=value ; (key value pairs to add to environment)
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[supervisorctl]
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serverurl=unix:///var/tmp/supervisor.sock ; use a unix:// URL for a unix socket
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;serverurl=http://127.0.0.1:9001 ; use an http:// url to specify an inet socket
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;username=chris ; should be same as http_username if set
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;password=123 ; should be same as http_password if set
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;prompt=mysupervisor ; cmd line prompt (default "supervisor")
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; The below sample program section shows all possible program subsection values,
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; create one or more ‘real‘ program: sections to be able to control them under
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; supervisor.
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;[program:example]
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;command=/bin/echo; the program (relative uses PATH, can take args)
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;priority=999 ; the relative start priority (default 999)
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;autostart=true ; start at supervisord start (default: true)
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;autorestart=true ; retstart at unexpected quit (default: true)
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;startsecs=10 ; number of secs prog must stay running (def. 10)
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;startretries=3 ; max # of serial start failures (default 3)
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;exitcodes=0,2 ; ‘expected‘ exit codes for process (default 0,2)
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;stopsignal=QUIT ; signal used to kill process (default TERM)
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;stopwaitsecs=10 ; max num secs to wait before SIGKILL (default 10)
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;user=chrism ; setuid to this UNIX account to run the program
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;log_stdout=true ; if true, log program stdout (default true)
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;log_stderr=true ; if true, log program stderr (def false)
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;logfile=/var/log/supervisor.log ; child log path, use NONE for none; default AUTO
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;logfile_maxbytes=1MB ; max # logfile bytes b4 rotation (default 50MB)
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;logfile_backups=10 ; # of logfile backups (default 10)
“;”为注释。各参数的含义都很明确。可以根据官方手册结合实验来进一步深入了解。重点说几个[program:example]中的参数
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;command=/bin/echo; supervisor启动时将要开启的进程。相对或绝对路径均可。若是相对路径则会从supervisord的$PATH变中查找。命令可带参数。
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;priority=999 指明进程启动和关闭的顺序。低优先级表明进程启动时较先启动关闭时较后关闭。高优先级表明进程启动时启动时较后启动关闭时较先关闭。
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;autostart=true 是否随supervisord启动而启动
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;autorestart=true 进程意外退出后是否自动重启
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;startsecs=10 进程持续运行多久才认为是启动成功
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;startretries=3 重启失败的连续重试次数
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;exitcodes=0,2 若autostart设置为unexpected且监控的进程并非因为supervisord停止而退出,那么如果进程的退出码不在exitcode列表中supervisord将重启进程
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;stopsignal=QUIT 杀进程的信号
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;stopwaitsecs=10 向进程发出stopsignal后等待OS向supervisord返回SIGCHILD 的时间。若超时则supervisord将使用SIGKILL杀进程
一个Rabbitmq项目中生产者和消费者进程使用supervisor监控的配置情况:(配置中的其他部分略)
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</pre><p><pre name="code" class="plain">[program:worker_for_summary]
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command=/home/op1/scripts/rabbitmqclient/worker_for_summary.py
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priority=1
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log_stderr=true ; if true, log program stderr (def false)
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[program:worker_for_detail_all]
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command=/home/op1/scripts/rabbitmqclient/worker_for_detail_all.py
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priority=1
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log_stderr=true ; if true, log program stderr (def false)
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[program:worker_for_detail_recent_list]
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command=/home/op1/scripts/rabbitmqclient/worker_for_detail_recent_list.py
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priority=1
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log_stderr=true ; if true, log program stderr (def false)
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[program:worker_for_detail_recent_sset]
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command=/home/op1/scripts/rabbitmqclient/worker_for_detail_recent_sset.py
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priority=1
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log_stderr=true ; if true, log program stderr (def false)
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[program:publisher_for_summary]
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command=/home/op1/scripts/rabbitmqclient/publisher_for_summary.py
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priority=999
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log_stderr=true ; if true, log program stderr (def false)
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[program:publisher_for_summary_nt]
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command=/home/op1/scripts/rabbitmqclient/publisher_for_summary_nt.py
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priority=999
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log_stderr=true ; if true, log program stderr (def false)
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[program:publisher_for_detail]
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command=/home/op1/scripts/rabbitmqclient/publisher_for_detail.py
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priority=999
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log_stderr=true ; if true, log program stderr (def false)
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[program:publisher_for_detail_nt]
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command=/home/op1/scripts/rabbitmqclient/publisher_for_detail_nt.py
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priority=999
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log_stderr=true ; if true, log program stderr (def false)
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配置完成后启动supervisord
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sudo /etc/init.d/supervisord start
可以看到配置的各个进程在后台运行了起来。
停掉某个进程后supervisor会马上重启该进程
停止supervisor
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sudo /etc/init.d/supervisord stop
可以看到配置的各个进程都停止运行了。
可以通过supervisorctl查看管理监控的进程情况:
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[op1@SVR1631HP360 ~]$ sudo supervisorctl
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publisher_for_detail RUNNING pid 27557, uptime 0:00:45
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publisher_for_detail_nt RUNNING pid 27567, uptime 0:00:45
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publisher_for_summary RUNNING pid 27566, uptime 0:00:45
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publisher_for_summary_nt RUNNING pid 27568, uptime 0:00:45
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worker_for_detail_all RUNNING pid 27581, uptime 0:00:45
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worker_for_detail_recent RUNNING pid 27582, uptime 0:00:45
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worker_for_summary RUNNING pid 27559, uptime 0:00:45
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#可通过help了解命令的更多用法
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supervisor> help
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Documented commands (type help <topic>):
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========================================
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EOF exit maintail quit restart start stop
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clear help open reload shutdown status tail
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supervisor> help stop
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stop <processname> Stop a process.
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stop <processname> <processname> Stop multiple processes
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stop all Stop all processes
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When all processes are stopped, they are stopped in
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reverse priority order (see config file)
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supervisor> help status
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status Get all process status info.
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status <name> Get status on a single process by name.
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status <name> <name> Get status on multiple named processes.
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#停止某个进程
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supervisor> stop publisher_for_summary
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publisher_for_summary: stopped
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#查看此时此刻的状态
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supervisor> status
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publisher_for_detail RUNNING pid 27557, uptime 0:05:41
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publisher_for_detail_nt RUNNING pid 27567, uptime 0:05:41
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publisher_for_summary STOPPED Feb 27 02:48 PM
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publisher_for_summary_nt RUNNING pid 27568, uptime 0:05:41
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worker_for_detail_all RUNNING pid 27581, uptime 0:05:41
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worker_for_detail_recent RUNNING pid 27582, uptime 0:05:41
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worker_for_summary RUNNING pid 27559, uptime 0:05:41
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#发现被supervisorctl停掉的进程不会被自动重启
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#开启刚才停掉的进程
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supervisor> start publisher_for_summary
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publisher_for_summary: started
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supervisor> status
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publisher_for_detail RUNNING pid 27557, uptime 0:08:02
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publisher_for_detail_nt RUNNING pid 27567, uptime 0:08:02
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publisher_for_summary RUNNING pid 3035, uptime 0:00:04
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publisher_for_summary_nt RUNNING pid 27568, uptime 0:08:02
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worker_for_detail_all RUNNING pid 27581, uptime 0:08:02
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worker_for_detail_recent RUNNING pid 27582, uptime 0:08:02
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worker_for_summary RUNNING pid 27559, uptime 0:08:02
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#停掉所有进程
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supervisor> stop all
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worker_for_detail_recent: stopped
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worker_for_detail_all: stopped
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publisher_for_summary_nt: stopped
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publisher_for_detail_nt: stopped
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publisher_for_summary: stopped
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worker_for_summary: stopped
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publisher_for_detail: stopped
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supervisor> status
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publisher_for_detail STOPPED Feb 27 02:51 PM
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publisher_for_detail_nt STOPPED Feb 27 02:51 PM
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publisher_for_summary STOPPED Feb 27 02:51 PM
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publisher_for_summary_nt STOPPED Feb 27 02:51 PM
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worker_for_detail_all STOPPED Feb 27 02:51 PM
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worker_for_detail_recent STOPPED Feb 27 02:51 PM
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worker_for_summary STOPPED Feb 27 02:51 PM
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#开启所有进程
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supervisor> start all
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publisher_for_detail: started
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worker_for_summary: started
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publisher_for_summary: started
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publisher_for_detail_nt: started
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publisher_for_summary_nt: started
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worker_for_detail_all: started
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worker_for_detail_recent: started
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supervisor> status
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publisher_for_detail RUNNING pid 5111, uptime 0:00:15
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publisher_for_detail_nt RUNNING pid 5141, uptime 0:00:15
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publisher_for_summary RUNNING pid 5135, uptime 0:00:15
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publisher_for_summary_nt RUNNING pid 5147, uptime 0:00:15
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worker_for_detail_all RUNNING pid 5153, uptime 0:00:15
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worker_for_detail_recent RUNNING pid 5159, uptime 0:00:14
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worker_for_summary RUNNING pid 5112, uptime 0:00:15
更多内容请参考官方手册
http://supervisord.org/
supervisor安装配置与使用
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原文地址:http://blog.csdn.net/bluehawksky/article/details/50978755