supervisor安装配置与使用

逃离我推掉我的手 2022-08-07 02:37 199阅读 0赞

**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**

[supervisord]
    http_port=/var/tmp/supervisor.sock ; (default is to run a UNIX domain socket server)
    ;http_port=127.0.0.1:9001  ; (alternately, ip_address:port specifies AF_INET)
    ;sockchmod=0700              ; AF_UNIX socketmode (AF_INET ignore, default 0700)
    ;sockchown=nobody.nogroup     ; AF_UNIX socket uid.gid owner (AF_INET ignores)
    ;umask=022                   ; (process file creation umask;default 022)
    logfile=/var/log/supervisor/supervisord.log ; (main log file;default $CWD/supervisord.log)
    logfile_maxbytes=50MB       ; (max main logfile bytes b4 rotation;default 50MB)
    logfile_backups=10          ; (num of main logfile rotation backups;default 10)
    loglevel=info               ; (logging level;default info; others: debug,warn)
    pidfile=/var/run/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
    nodaemon=false              ; (start in foreground if true;default false)
    minfds=1024                 ; (min. avail startup file descriptors;default 1024)
    minprocs=200                ; (min. avail process descriptors;default 200)
    
    ;nocleanup=true              ; (don't clean up tempfiles at start;default false)
    ;http_username=user          ; (default is no username (open system))
    ;http_password=123           ; (default is no password (open system))
    ;childlogdir=/tmp            ; ('AUTO' child log dir, default $TEMP)
    ;user=chrism                 ; (default is current user, required if root)
    ;directory=/tmp              ; (default is not to cd during start)
    ;environment=KEY=value       ; (key value pairs to add to environment)
    
    [supervisorctl]
    serverurl=unix:///var/tmp/supervisor.sock ; use a unix:// URL  for a unix socket
    ;serverurl=http://127.0.0.1:9001 ; use an http:// url to specify an inet socket
    ;username=chris              ; should be same as http_username if set
    ;password=123                ; should be same as http_password if set
    ;prompt=mysupervisor         ; cmd line prompt (default "supervisor")
    
    ; The below sample program section shows all possible program subsection values,
    ; create one or more 'real' program: sections to be able to control them under
    ; supervisor.
    
    ;[program:example]
    ;command=/bin/echo; the program (relative uses PATH, can take args)
    ;priority=999                ; the relative start priority (default 999)
    ;autostart=true              ; start at supervisord start (default: true)
    ;autorestart=true            ; retstart at unexpected quit (default: true)
    ;startsecs=10                ; number of secs prog must stay running (def. 10)
    ;startretries=3              ; max # of serial start failures (default 3)
    ;exitcodes=0,2               ; 'expected' exit codes for process (default 0,2)
    ;stopsignal=QUIT             ; signal used to kill process (default TERM)
    ;stopwaitsecs=10             ; max num secs to wait before SIGKILL (default 10)
    ;user=chrism                 ; setuid to this UNIX account to run the program
    ;log_stdout=true             ; if true, log program stdout (default true)
    ;log_stderr=true             ; if true, log program stderr (def false)
    ;logfile=/var/log/supervisor.log    ; child log path, use NONE for none; default AUTO
    ;logfile_maxbytes=1MB        ; max # logfile bytes b4 rotation (default 50MB)
    ;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

;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。
    ;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。
    ;autostart=true              	是否随supervisord启动而启动
    ;autorestart=true            	进程意外退出后是否自动重启
    ;startsecs=10                	进程持续运行多久才认为是启动成功
    ;startretries=3              	重启失败的连续重试次数
    ;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
    ;stopsignal=QUIT             	杀进程的信号
    ;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)

</pre><p><pre name="code" class="plain">[program:worker_for_summary]
    command=/home/op1/scripts/rabbitmqclient/worker_for_summary.py
    priority=1
    log_stderr=true             ; if true, log program stderr (def false)
    
    [program:worker_for_detail_all]
    command=/home/op1/scripts/rabbitmqclient/worker_for_detail_all.py
    priority=1
    log_stderr=true             ; if true, log program stderr (def false)
    
    [program:worker_for_detail_recent_list]
    command=/home/op1/scripts/rabbitmqclient/worker_for_detail_recent_list.py
    priority=1
    log_stderr=true             ; if true, log program stderr (def false)
    
    [program:worker_for_detail_recent_sset]
    command=/home/op1/scripts/rabbitmqclient/worker_for_detail_recent_sset.py
    priority=1
    log_stderr=true             ; if true, log program stderr (def false)
    
    [program:publisher_for_summary]
    command=/home/op1/scripts/rabbitmqclient/publisher_for_summary.py
    priority=999
    log_stderr=true             ; if true, log program stderr (def false)
    
    [program:publisher_for_summary_nt]
    command=/home/op1/scripts/rabbitmqclient/publisher_for_summary_nt.py
    priority=999
    log_stderr=true             ; if true, log program stderr (def false)
    
    [program:publisher_for_detail]
    command=/home/op1/scripts/rabbitmqclient/publisher_for_detail.py
    priority=999
    log_stderr=true             ; if true, log program stderr (def false)
    
    [program:publisher_for_detail_nt]
    command=/home/op1/scripts/rabbitmqclient/publisher_for_detail_nt.py
    priority=999
    log_stderr=true             ; if true, log program stderr (def false)

配置完成后启动supervisord

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

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：

[op1@SVR1631HP360 ~]$ sudo supervisorctl
    publisher_for_detail RUNNING    pid 27557, uptime 0:00:45
    publisher_for_detail_nt RUNNING    pid 27567, uptime 0:00:45
    publisher_for_summary RUNNING    pid 27566, uptime 0:00:45
    publisher_for_summary_nt RUNNING    pid 27568, uptime 0:00:45
    worker_for_detail_all RUNNING    pid 27581, uptime 0:00:45
    worker_for_detail_recent RUNNING    pid 27582, uptime 0:00:45
    worker_for_summary RUNNING    pid 27559, uptime 0:00:45
    
    #可通过help了解命令的更多用法
    supervisor> help
    
    Documented commands (type help <topic>):
    ========================================
    EOF    exit  maintail  quit    restart   start   stop
    clear  help  open      reload  shutdown  status  tail
    
    supervisor> help stop
    stop <processname>			Stop a process.
    stop <processname> <processname>	Stop multiple processes
    stop all				Stop all processes
      When all processes are stopped, they are stopped in
      reverse priority order (see config file)
    supervisor> help status
    status			Get all process status info.
    status <name>		Get status on a single process by name.
    status <name> <name>	Get status on multiple named processes.
    
    #停止某个进程
    supervisor> stop publisher_for_summary
    publisher_for_summary: stopped
    
    #查看此时此刻的状态
    supervisor> status
    publisher_for_detail RUNNING    pid 27557, uptime 0:05:41
    publisher_for_detail_nt RUNNING    pid 27567, uptime 0:05:41
    publisher_for_summary STOPPED    Feb 27 02:48 PM
    publisher_for_summary_nt RUNNING    pid 27568, uptime 0:05:41
    worker_for_detail_all RUNNING    pid 27581, uptime 0:05:41
    worker_for_detail_recent RUNNING    pid 27582, uptime 0:05:41
    worker_for_summary RUNNING    pid 27559, uptime 0:05:41
    #发现被supervisorctl停掉的进程不会被自动重启
    
    #开启刚才停掉的进程
    supervisor> start publisher_for_summary
    publisher_for_summary: started
    supervisor> status
    publisher_for_detail RUNNING    pid 27557, uptime 0:08:02
    publisher_for_detail_nt RUNNING    pid 27567, uptime 0:08:02
    publisher_for_summary RUNNING    pid 3035, uptime 0:00:04
    publisher_for_summary_nt RUNNING    pid 27568, uptime 0:08:02
    worker_for_detail_all RUNNING    pid 27581, uptime 0:08:02
    worker_for_detail_recent RUNNING    pid 27582, uptime 0:08:02
    worker_for_summary RUNNING    pid 27559, uptime 0:08:02
    
    #停掉所有进程
    supervisor> stop all
    worker_for_detail_recent: stopped
    worker_for_detail_all: stopped
    publisher_for_summary_nt: stopped
    publisher_for_detail_nt: stopped
    publisher_for_summary: stopped
    worker_for_summary: stopped
    publisher_for_detail: stopped
    supervisor> status
    publisher_for_detail STOPPED    Feb 27 02:51 PM
    publisher_for_detail_nt STOPPED    Feb 27 02:51 PM
    publisher_for_summary STOPPED    Feb 27 02:51 PM
    publisher_for_summary_nt STOPPED    Feb 27 02:51 PM
    worker_for_detail_all STOPPED    Feb 27 02:51 PM
    worker_for_detail_recent STOPPED    Feb 27 02:51 PM
    worker_for_summary STOPPED    Feb 27 02:51 PM
    
    #开启所有进程
    supervisor> start all
    publisher_for_detail: started
    worker_for_summary: started
    publisher_for_summary: started
    publisher_for_detail_nt: started
    publisher_for_summary_nt: started
    worker_for_detail_all: started
    worker_for_detail_recent: started
    supervisor> status
    publisher_for_detail RUNNING    pid 5111, uptime 0:00:15
    publisher_for_detail_nt RUNNING    pid 5141, uptime 0:00:15
    publisher_for_summary RUNNING    pid 5135, uptime 0:00:15
    publisher_for_summary_nt RUNNING    pid 5147, uptime 0:00:15
    worker_for_detail_all RUNNING    pid 5153, uptime 0:00:15
    worker_for_detail_recent RUNNING    pid 5159, uptime 0:00:14
    worker_for_summary RUNNING    pid 5112, uptime 0:00:15

更多内容请参考官方手册  
http://supervisord.org/