【简介】

supervisord的官网：http://supervisord.org。看懂英文的可以不用看我的博客，直接看文档就行了，文档写得非常好。点个赞！！　　

Supervisor是一个客户/服务器系统，它可以在类Unix系统中管理控制大量进程。Supervisor使用python开发，有多年历史，目前很多生产环境下的服务器都在使用Supervisor。

Supervisor的服务器端称为supervisord，主要负责在启动自身时启动管理的子进程，响应客户端的命令，重启崩溃或退出的子进程，记录子 进程stdout和stderr输出，生成和处理子进程生命周期中的事件。可以在一个配置文件中配置相关参数，包括Supervisord自身的状态，其 管理的各个子进程的相关属性。配置文件一般位于/etc/supervisord.conf。

Supervisor的客户端称为supervisorctl，它提供了一个类shell的接口（即命令行）来使用supervisord服务端提供的功 能。通过supervisorctl，用户可以连接到supervisord服务器进程，获得服务器进程控制的子进程的状态，启动和停止子进程，获得正在 运行的进程列表。客户端通过Unix域套接字或者TCP套接字与服务端进行通信，服务器端具有身份凭证认证机制，可以有效提升安全性。当客户端和服务器位 于同一台机器上时，客户端与服务器共用同一个配置文件/etc/supervisord.conf，通过不同标签来区分两者的配置。

Supervisor也提供了一个web页面来查看和管理进程状态，这个功能用得人比较少。

【平台要求】

Supervisor可以运行在大多数Unix系统上，但不支持在Windows系统上运行。

Supervisor需要Python2.4及以上版本，但任何Python 3版本都不支持。

【安装】

当前Supervisor的最高版本是3.0，之前尝试使用2.x版本管理实验集群中的若干mdrill进程，发现使用客户端无法有效启动和停止服务器 端管理的各个子进程，从网上搜索错误发现2.x版本有一些bug，建议升级到3.0版本。因此我卸载了2.x版本，重新安装了3.0版本，发现3.0版本 很好使。3.0版本相对2.x版本，配置文件不同部分的配置项都发生了变化，详见官方文档。

我使用的操作系统是CentOS 6.4， 默认已经安装了Python，且是2.6.6版本。如果Python没有安装，请自行安装符合要求的版本。

1. 安装easy_install

  1. sudo yum install python-setuptools-devel

2. 安装Supervisor

  1. easy_install supervisor

　　 3. 生成配置文件

  1. echo_supervisord_conf > /etc/supervisord.conf

经过上面两步，Supervisor就安装好了。配置 文件模版已经在/etc/supervisord.conf中生成。当然配置文件的位置不一定放在/etc/supervisord.conf中。在不指 定配置文件位置的情况下，supervisord和supervisorctl会按照以下三个顺序来搜索配置文件的位置。

  1. $CWD/supervisord.conf
  2. $CWD/etc/supervisord.conf
  3. /etc/supervisord.conf

接下来就可以根据需要修改配置文件中的相应部分，对需要管理的进程进行配置了。具体的配置可以参考下一部分。

【配置】

我在一个三个结点的集群中部署了mdrill，三台主机名称分别为cma01, cma02, cma03，在cma01和cma02上打算启动Supervisor进程（这里的Supervisor进程是storm的进程，与supervisor 进程管理工具不是一回事），在cma03上打算启动NimbusServer，Mdrillui和Supervisor三个进程。在三台主机上都安装 supervisor进程控制系统后，分别在每台主机的/etc/supervisord.conf文件中配置每台主机要管理的进程。具体配置如下，其中 以；开始的行为注释行：

[cma01  /etc/supervisord.conf]

  1. ; Sample supervisor config file.
  2. ;
  3. ; For more information on the config file, please see:
  4. ; http://supervisord.org/configuration.html
  5. ;
  6. ; Note: shell expansion ("~" or "$HOME") is not supported.  Environment
  7. ; variables can be expanded using this syntax: "%(ENV_HOME)s".
  8.  
  9. [unix_http_server]
  10. file=/tmp/supervisor.sock   ; (the path to the socket file)
  11. ;chmod=0700                 ; socket file mode (default 0700)
  12. ;chown=nobody:nogroup       ; socket file uid:gid owner
  13. ;username=user              ; (default is no username (open server))
  14. ;password=123               ; (default is no password (open server))
  15.  
  16. [inet_http_server]         ; inet (TCP) server disabled by default
  17. port=cma01:9001        ; (ip_address:port specifier, *:port for all iface)
  18. ;username=user              ; (default is no username (open server))
  19. ;password=123               ; (default is no password (open server))
  20.  
  21. [supervisord]
  22. logfile=/tmp/supervisord.log ; (main log file;default $CWD/supervisord.log)
  23. logfile_maxbytes=50MB        ; (max main logfile bytes b4 rotation;default 50MB)
  24. logfile_backups=10           ; (num of main logfile rotation backups;default 10)
  25. loglevel=info                ; (log level;default info; others: debug,warn,trace)
  26. pidfile=/tmp/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
  27. nodaemon=false               ; (start in foreground if true;default false)
  28. minfds=1024                  ; (min. avail startup file descriptors;default 1024)
  29. minprocs=200                 ; (min. avail process descriptors;default 200)
  30. ;umask=022                   ; (process file creation umask;default 022)
  31. ;user=chrism                 ; (default is current user, required if root)
  32. ;identifier=supervisor       ; (supervisord identifier, default is 'supervisor')
  33. ;directory=/tmp              ; (default is not to cd during start)
  34. ;nocleanup=true              ; (don't clean up tempfiles at start;default false)
  35. ;childlogdir=/tmp            ; ('AUTO' child log dir, default $TEMP)
  36. ;environment=KEY="value"     ; (key value pairs to add to environment)
  37. ;strip_ansi=false            ; (strip ansi escape codes in logs; def. false)
  38.  
  39. ; the below section must remain in the config file for RPC
  40. ; (supervisorctl/web interface) to work, additional interfaces may be
  41. ; added by defining them in separate rpcinterface: sections
  42. [rpcinterface:supervisor]
  43. supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
  44.  
  45. [supervisorctl]
  46. serverurl=unix:///tmp/supervisor.sock ; use a unix:// URL  for a unix socket
  47. ;serverurl=http://127.0.0.1:9001 ; use an http:// url to specify an inet socket
  48. ;username=chris              ; should be same as http_username if set
  49. ;password=123                ; should be same as http_password if set
  50. ;prompt=mysupervisor         ; cmd line prompt (default "supervisor")
  51. ;history_file=~/.sc_history  ; use readline history if available
  52.  
  53. ; The below sample program section shows all possible program subsection values,
  54. ; create one or more 'real' program: sections to be able to control them under
  55. ; supervisor.
  56.  
  57. ;[program:theprogramname]
  58. ;command=/bin/cat              ; the program (relative uses PATH, can take args)
  59. ;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
  60. ;numprocs=1                    ; number of processes copies to start (def 1)
  61. ;directory=/tmp                ; directory to cwd to before exec (def no cwd)
  62. ;umask=022                     ; umask for process (default None)
  63. ;priority=999                  ; the relative start priority (default 999)
  64. ;autostart=true                ; start at supervisord start (default: true)
  65. ;autorestart=unexpected        ; whether/when to restart (default: unexpected)
  66. ;startsecs=1                   ; number of secs prog must stay running (def. 1)
  67. ;startretries=3                ; max # of serial start failures (default 3)
  68. ;exitcodes=0,2                 ; 'expected' exit codes for process (default 0,2)
  69. ;stopsignal=QUIT               ; signal used to kill process (default TERM)
  70. ;stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10)
  71. ;stopasgroup=false             ; send stop signal to the UNIX process group (default false)
  72. ;killasgroup=false             ; SIGKILL the UNIX process group (def false)
  73. ;user=chrism                   ; setuid to this UNIX account to run the program
  74. ;redirect_stderr=true          ; redirect proc stderr to stdout (default false)
  75. ;stdout_logfile=/a/path        ; stdout log path, NONE for none; default AUTO
  76. ;stdout_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
  77. ;stdout_logfile_backups=10     ; # of stdout logfile backups (default 10)
  78. ;stdout_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default 0)
  79. ;stdout_events_enabled=false   ; emit events on stdout writes (default false)
  80. ;stderr_logfile=/a/path        ; stderr log path, NONE for none; default AUTO
  81. ;stderr_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
  82. ;stderr_logfile_backups=10     ; # of stderr logfile backups (default 10)
  83. ;stderr_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default 0)
  84. ;stderr_events_enabled=false   ; emit events on stderr writes (default false)
  85. ;environment=A="1",B="2"       ; process environment additions (def no adds)
  86. ;serverurl=AUTO                ; override serverurl computation (childutils)
  87.  
  88. [program:spvs-01]
  89. command=/root/alimama/adhoc-core/bin/bluewhale supervisor
  90. process_name=%(program_name)s
  91. numprocs=1
  92. user=root
  93. autostart=true
  94. autorestart=true
  95. startsecs=5
  96. startretries=3
  97. redirect_stderr=true
  98. stdout_logfile=/root/alimama/adhoc-core/bin/supervisor.log
  99. stdout_logfile_maxbytes=20MB
  100. stdout_logfile_backups=10
  101. stopasgroup=true
  102.  
  103. ; The below sample eventlistener section shows all possible
  104. ; eventlistener subsection values, create one or more 'real'
  105. ; eventlistener: sections to be able to handle event notifications
  106. ; sent by supervisor.
  107.  
  108. ;[eventlistener:theeventlistenername]
  109. ;command=/bin/eventlistener    ; the program (relative uses PATH, can take args)
  110. ;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
  111. ;numprocs=1                    ; number of processes copies to start (def 1)
  112. ;events=EVENT                  ; event notif. types to subscribe to (req'd)
  113. ;buffer_size=10                ; event buffer queue size (default 10)
  114. ;directory=/tmp                ; directory to cwd to before exec (def no cwd)
  115. ;umask=022                     ; umask for process (default None)
  116. ;priority=-1                   ; the relative start priority (default -1)
  117. ;autostart=true                ; start at supervisord start (default: true)
  118. ;autorestart=unexpected        ; whether/when to restart (default: unexpected)
  119. ;startsecs=1                   ; number of secs prog must stay running (def. 1)
  120. ;startretries=3                ; max # of serial start failures (default 3)
  121. ;exitcodes=0,2                 ; 'expected' exit codes for process (default 0,2)
  122. ;stopsignal=QUIT               ; signal used to kill process (default TERM)
  123. ;stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10)
  124. ;stopasgroup=false             ; send stop signal to the UNIX process group (default false)
  125. ;killasgroup=false             ; SIGKILL the UNIX process group (def false)
  126. ;user=chrism                   ; setuid to this UNIX account to run the program
  127. ;redirect_stderr=true          ; redirect proc stderr to stdout (default false)
  128. ;stdout_logfile=/a/path        ; stdout log path, NONE for none; default AUTO
  129. ;stdout_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
  130. ;stdout_logfile_backups=10     ; # of stdout logfile backups (default 10)
  131. ;stdout_events_enabled=false   ; emit events on stdout writes (default false)
  132. ;stderr_logfile=/a/path        ; stderr log path, NONE for none; default AUTO
  133. ;stderr_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
  134. ;stderr_logfile_backups        ; # of stderr logfile backups (default 10)
  135. ;stderr_events_enabled=false   ; emit events on stderr writes (default false)
  136. ;environment=A="1",B="2"       ; process environment additions
  137. ;serverurl=AUTO                ; override serverurl computation (childutils)
  138.  
  139. ; The below sample group section shows all possible group values,
  140. ; create one or more 'real' group: sections to create "heterogeneous"
  141. ; process groups.
  142.  
  143. ;[group:thegroupname]
  144. ;programs=progname1,progname2  ; each refers to 'x' in [program:x] definitions
  145. ;priority=999                  ; the relative start priority (default 999)
  146.  
  147. ; The [include] section can just contain the "files" setting.  This
  148. ; setting can list multiple files (separated by whitespace or
  149. ; newlines).  It can also contain wildcards.  The filenames are
  150. ; interpreted as relative to this file.  Included files *cannot*
  151. ; include files themselves.
  152.  
  153. ;[include]
  154. ;files = relative/directory/*.ini

关键部分是program:spvs-01，该部分为主机cma01配置了让supervisord管理的storm进程Supervisor。

[cma02  /etc/supervisord.conf]

  1. ; Sample supervisor config file.
  2. ;
  3. ; For more information on the config file, please see:
  4. ; http://supervisord.org/configuration.html
  5. ;
  6. ; Note: shell expansion ("~" or "$HOME") is not supported.  Environment
  7. ; variables can be expanded using this syntax: "%(ENV_HOME)s".
  8.  
  9. [unix_http_server]
  10. file=/tmp/supervisor.sock   ; (the path to the socket file)
  11. ;chmod=0700                 ; socket file mode (default 0700)
  12. ;chown=nobody:nogroup       ; socket file uid:gid owner
  13. ;username=user              ; (default is no username (open server))
  14. ;password=123               ; (default is no password (open server))
  15.  
  16. [inet_http_server]         ; inet (TCP) server disabled by default
  17. port=cma02:9001        ; (ip_address:port specifier, *:port for all iface)
  18. ;username=user              ; (default is no username (open server))
  19. ;password=123               ; (default is no password (open server))
  20.  
  21. [supervisord]
  22. logfile=/tmp/supervisord.log ; (main log file;default $CWD/supervisord.log)
  23. logfile_maxbytes=50MB        ; (max main logfile bytes b4 rotation;default 50MB)
  24. logfile_backups=10           ; (num of main logfile rotation backups;default 10)
  25. loglevel=info                ; (log level;default info; others: debug,warn,trace)
  26. pidfile=/tmp/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
  27. nodaemon=false               ; (start in foreground if true;default false)
  28. minfds=1024                  ; (min. avail startup file descriptors;default 1024)
  29. minprocs=200                 ; (min. avail process descriptors;default 200)
  30. ;umask=022                   ; (process file creation umask;default 022)
  31. ;user=chrism                 ; (default is current user, required if root)
  32. ;identifier=supervisor       ; (supervisord identifier, default is 'supervisor')
  33. ;directory=/tmp              ; (default is not to cd during start)
  34. ;nocleanup=true              ; (don't clean up tempfiles at start;default false)
  35. ;childlogdir=/tmp            ; ('AUTO' child log dir, default $TEMP)
  36. ;environment=KEY="value"     ; (key value pairs to add to environment)
  37. ;strip_ansi=false            ; (strip ansi escape codes in logs; def. false)
  38.  
  39. ; the below section must remain in the config file for RPC
  40. ; (supervisorctl/web interface) to work, additional interfaces may be
  41. ; added by defining them in separate rpcinterface: sections
  42. [rpcinterface:supervisor]
  43. supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
  44.  
  45. [supervisorctl]
  46. serverurl=unix:///tmp/supervisor.sock ; use a unix:// URL  for a unix socket
  47. ;serverurl=http://127.0.0.1:9001 ; use an http:// url to specify an inet socket
  48. ;username=chris              ; should be same as http_username if set
  49. ;password=123                ; should be same as http_password if set
  50. ;prompt=mysupervisor         ; cmd line prompt (default "supervisor")
  51. ;history_file=~/.sc_history  ; use readline history if available
  52.  
  53. ; The below sample program section shows all possible program subsection values,
  54. ; create one or more 'real' program: sections to be able to control them under
  55. ; supervisor.
  56.  
  57. ;[program:theprogramname]
  58. ;command=/bin/cat              ; the program (relative uses PATH, can take args)
  59. ;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
  60. ;numprocs=1                    ; number of processes copies to start (def 1)
  61. ;directory=/tmp                ; directory to cwd to before exec (def no cwd)
  62. ;umask=022                     ; umask for process (default None)
  63. ;priority=999                  ; the relative start priority (default 999)
  64. ;autostart=true                ; start at supervisord start (default: true)
  65. ;autorestart=unexpected        ; whether/when to restart (default: unexpected)
  66. ;startsecs=1                   ; number of secs prog must stay running (def. 1)
  67. ;startretries=3                ; max # of serial start failures (default 3)
  68. ;exitcodes=0,2                 ; 'expected' exit codes for process (default 0,2)
  69. ;stopsignal=QUIT               ; signal used to kill process (default TERM)
  70. ;stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10)
  71. ;stopasgroup=false             ; send stop signal to the UNIX process group (default false)
  72. ;killasgroup=false             ; SIGKILL the UNIX process group (def false)
  73. ;user=chrism                   ; setuid to this UNIX account to run the program
  74. ;redirect_stderr=true          ; redirect proc stderr to stdout (default false)
  75. ;stdout_logfile=/a/path        ; stdout log path, NONE for none; default AUTO
  76. ;stdout_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
  77. ;stdout_logfile_backups=10     ; # of stdout logfile backups (default 10)
  78. ;stdout_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default 0)
  79. ;stdout_events_enabled=false   ; emit events on stdout writes (default false)
  80. ;stderr_logfile=/a/path        ; stderr log path, NONE for none; default AUTO
  81. ;stderr_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
  82. ;stderr_logfile_backups=10     ; # of stderr logfile backups (default 10)
  83. ;stderr_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default 0)
  84. ;stderr_events_enabled=false   ; emit events on stderr writes (default false)
  85. ;environment=A="1",B="2"       ; process environment additions (def no adds)
  86. ;serverurl=AUTO                ; override serverurl computation (childutils)
  87.  
  88. [program:spvs-02]
  89. command=/root/alimama/adhoc-core/bin/bluewhale supervisor
  90. process_name=%(program_name)s
  91. numprocs=1
  92. user=root
  93. autostart=true
  94. autorestart=true
  95. startsecs=5
  96. startretries=3
  97. redirect_stderr=true
  98. stdout_logfile=/root/alimama/adhoc-core/bin/supervisor.log
  99. stdout_logfile_maxbytes=20MB
  100. stdout_logfile_backups=10
  101. stopasgroup=true
  102.  
  103. ; The below sample eventlistener section shows all possible
  104. ; eventlistener subsection values, create one or more 'real'
  105. ; eventlistener: sections to be able to handle event notifications
  106. ; sent by supervisor.
  107.  
  108. ;[eventlistener:theeventlistenername]
  109. ;command=/bin/eventlistener    ; the program (relative uses PATH, can take args)
  110. ;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
  111. ;numprocs=1                    ; number of processes copies to start (def 1)
  112. ;events=EVENT                  ; event notif. types to subscribe to (req'd)
  113. ;buffer_size=10                ; event buffer queue size (default 10)
  114. ;directory=/tmp                ; directory to cwd to before exec (def no cwd)
  115. ;umask=022                     ; umask for process (default None)
  116. ;priority=-1                   ; the relative start priority (default -1)
  117. ;autostart=true                ; start at supervisord start (default: true)
  118. ;autorestart=unexpected        ; whether/when to restart (default: unexpected)
  119. ;startsecs=1                   ; number of secs prog must stay running (def. 1)
  120. ;startretries=3                ; max # of serial start failures (default 3)
  121. ;exitcodes=0,2                 ; 'expected' exit codes for process (default 0,2)
  122. ;stopsignal=QUIT               ; signal used to kill process (default TERM)
  123. ;stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10)
  124. ;stopasgroup=false             ; send stop signal to the UNIX process group (default false)
  125. ;killasgroup=false             ; SIGKILL the UNIX process group (def false)
  126. ;user=chrism                   ; setuid to this UNIX account to run the program
  127. ;redirect_stderr=true          ; redirect proc stderr to stdout (default false)
  128. ;stdout_logfile=/a/path        ; stdout log path, NONE for none; default AUTO
  129. ;stdout_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
  130. ;stdout_logfile_backups=10     ; # of stdout logfile backups (default 10)
  131. ;stdout_events_enabled=false   ; emit events on stdout writes (default false)
  132. ;stderr_logfile=/a/path        ; stderr log path, NONE for none; default AUTO
  133. ;stderr_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
  134. ;stderr_logfile_backups        ; # of stderr logfile backups (default 10)
  135. ;stderr_events_enabled=false   ; emit events on stderr writes (default false)
  136. ;environment=A="1",B="2"       ; process environment additions
  137. ;serverurl=AUTO                ; override serverurl computation (childutils)
  138.  
  139. ; The below sample group section shows all possible group values,
  140. ; create one or more 'real' group: sections to create "heterogeneous"
  141. ; process groups.
  142.  
  143. ;[group:thegroupname]
  144. ;programs=progname1,progname2  ; each refers to 'x' in [program:x] definitions
  145. ;priority=999                  ; the relative start priority (default 999)
  146.  
  147. ; The [include] section can just contain the "files" setting.  This
  148. ; setting can list multiple files (separated by whitespace or
  149. ; newlines).  It can also contain wildcards.  The filenames are
  150. ; interpreted as relative to this file.  Included files *cannot*
  151. ; include files themselves.
  152.  
  153. ;[include]
  154. ;files = relative/directory/*.ini

关键部分是program:spvs-02，该部分为主机cma02配置了让supervisord管理的storm进程Supervisor。

[cma03  /etc/supervisord.conf]

  1. ; Sample supervisor config file.
  2. ;
  3. ; For more information on the config file, please see:
  4. ; http://supervisord.org/configuration.html
  5. ;
  6. ; Note: shell expansion ("~" or "$HOME") is not supported.  Environment
  7. ; variables can be expanded using this syntax: "%(ENV_HOME)s".
  8.  
  9. [unix_http_server]
  10. file=/tmp/supervisor.sock   ; (the path to the socket file)
  11. ;chmod=0700                 ; socket file mode (default 0700)
  12. ;chown=nobody:nogroup       ; socket file uid:gid owner
  13. ;username=user              ; (default is no username (open server))
  14. ;password=123               ; (default is no password (open server))
  15.  
  16. [inet_http_server]         ; inet (TCP) server disabled by default
  17. port=cma03:9001        ; (ip_address:port specifier, *:port for all iface)
  18. ;username=user              ; (default is no username (open server))
  19. ;password=123               ; (default is no password (open server))
  20.  
  21. [supervisord]
  22. logfile=/tmp/supervisord.log ; (main log file;default $CWD/supervisord.log)
  23. logfile_maxbytes=50MB        ; (max main logfile bytes b4 rotation;default 50MB)
  24. logfile_backups=10           ; (num of main logfile rotation backups;default 10)
  25. loglevel=info                ; (log level;default info; others: debug,warn,trace)
  26. pidfile=/tmp/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
  27. nodaemon=false               ; (start in foreground if true;default false)
  28. minfds=1024                  ; (min. avail startup file descriptors;default 1024)
  29. minprocs=200                 ; (min. avail process descriptors;default 200)
  30. ;umask=022                   ; (process file creation umask;default 022)
  31. ;user=chrism                 ; (default is current user, required if root)
  32. ;identifier=supervisor       ; (supervisord identifier, default is 'supervisor')
  33. ;directory=/tmp              ; (default is not to cd during start)
  34. ;nocleanup=true              ; (don't clean up tempfiles at start;default false)
  35. ;childlogdir=/tmp            ; ('AUTO' child log dir, default $TEMP)
  36. ;environment=KEY="value"     ; (key value pairs to add to environment)
  37. ;strip_ansi=false            ; (strip ansi escape codes in logs; def. false)
  38.  
  39. ; the below section must remain in the config file for RPC
  40. ; (supervisorctl/web interface) to work, additional interfaces may be
  41. ; added by defining them in separate rpcinterface: sections
  42. [rpcinterface:supervisor]
  43. supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
  44.  
  45. [supervisorctl]
  46. serverurl=unix:///tmp/supervisor.sock ; use a unix:// URL  for a unix socket
  47. ;serverurl=http://127.0.0.1:9001 ; use an http:// url to specify an inet socket
  48. ;username=chris              ; should be same as http_username if set
  49. ;password=123                ; should be same as http_password if set
  50. ;prompt=mysupervisor         ; cmd line prompt (default "supervisor")
  51. ;history_file=~/.sc_history  ; use readline history if available
  52.  
  53. ; The below sample program section shows all possible program subsection values,
  54. ; create one or more 'real' program: sections to be able to control them under
  55. ; supervisor.
  56.  
  57. ;[program:theprogramname]
  58. ;command=/bin/cat              ; the program (relative uses PATH, can take args)
  59. ;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
  60. ;numprocs=1                    ; number of processes copies to start (def 1)
  61. ;directory=/tmp                ; directory to cwd to before exec (def no cwd)
  62. ;umask=022                     ; umask for process (default None)
  63. ;priority=999                  ; the relative start priority (default 999)
  64. ;autostart=true                ; start at supervisord start (default: true)
  65. ;autorestart=unexpected        ; whether/when to restart (default: unexpected)
  66. ;startsecs=1                   ; number of secs prog must stay running (def. 1)
  67. ;startretries=3                ; max # of serial start failures (default 3)
  68. ;exitcodes=0,2                 ; 'expected' exit codes for process (default 0,2)
  69. ;stopsignal=QUIT               ; signal used to kill process (default TERM)
  70. ;stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10)
  71. ;stopasgroup=false             ; send stop signal to the UNIX process group (default false)
  72. ;killasgroup=false             ; SIGKILL the UNIX process group (def false)
  73. ;user=chrism                   ; setuid to this UNIX account to run the program
  74. ;redirect_stderr=true          ; redirect proc stderr to stdout (default false)
  75. ;stdout_logfile=/a/path        ; stdout log path, NONE for none; default AUTO
  76. ;stdout_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
  77. ;stdout_logfile_backups=10     ; # of stdout logfile backups (default 10)
  78. ;stdout_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default 0)
  79. ;stdout_events_enabled=false   ; emit events on stdout writes (default false)
  80. ;stderr_logfile=/a/path        ; stderr log path, NONE for none; default AUTO
  81. ;stderr_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
  82. ;stderr_logfile_backups=10     ; # of stderr logfile backups (default 10)
  83. ;stderr_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default 0)
  84. ;stderr_events_enabled=false   ; emit events on stderr writes (default false)
  85. ;environment=A="1",B="2"       ; process environment additions (def no adds)
  86. ;serverurl=AUTO                ; override serverurl computation (childutils)
  87.  
  88. [program:nmbs]
  89. command=/root/alimama/adhoc-core/bin/bluewhale nimbus
  90. process_name=%(program_name)s
  91. numprocs=1
  92. user=root
  93. priority=700
  94. autostart=true
  95. autorestart=true
  96. startsecs=5
  97. startretries=3
  98. redirect_stderr=true
  99. stdout_logfile=/root/alimama/adhoc-core/bin/nimbus.log
  100. stdout_logfile_maxbytes=20MB
  101. stdout_logfile_backups=10
  102. stopasgroup=true
  103.  
  104. [program:spvs-03]
  105. command=/root/alimama/adhoc-core/bin/bluewhale supervisor
  106. process_name=%(program_name)s
  107. numprocs=1
  108. user=root
  109. priority=800
  110. autostart=true
  111. autorestart=true
  112. startsecs=5
  113. startretries=3
  114. redirect_stderr=true
  115. stdout_logfile=/root/alimama/adhoc-core/bin/supervisor.log
  116. stdout_logfile_maxbytes=20MB
  117. stdout_logfile_backups=10
  118. stopasgroup=true
  119.  
  120. [program:ui]
  121. command=/root/alimama/adhoc-core/bin/bluewhale mdrillui 1107 /root/alimama/adhoc-core/lib/adhoc-web-0.18-beta.jar
  122. process_name=%(program_name)s
  123. numprocs=1
  124. user=root
  125. priority=900
  126. autostart=true
  127. autorestart=true
  128. startsecs=5
  129. startretries=3
  130. redirect_stderr=true
  131. stdout_logfile=/root/alimama/adhoc-core/bin/ui.log
  132. stdout_logfile_maxbytes=20MB
  133. stdout_logfile_backups=10
  134. stopasgroup=true
  135.  
  136. ; The below sample eventlistener section shows all possible
  137. ; eventlistener subsection values, create one or more 'real'
  138. ; eventlistener: sections to be able to handle event notifications
  139. ; sent by supervisor.
  140.  
  141. ;[eventlistener:theeventlistenername]
  142. ;command=/bin/eventlistener    ; the program (relative uses PATH, can take args)
  143. ;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
  144. ;numprocs=1                    ; number of processes copies to start (def 1)
  145. ;events=EVENT                  ; event notif. types to subscribe to (req'd)
  146. ;buffer_size=10                ; event buffer queue size (default 10)
  147. ;directory=/tmp                ; directory to cwd to before exec (def no cwd)
  148. ;umask=022                     ; umask for process (default None)
  149. ;priority=-1                   ; the relative start priority (default -1)
  150. ;autostart=true                ; start at supervisord start (default: true)
  151. ;autorestart=unexpected        ; whether/when to restart (default: unexpected)
  152. ;startsecs=1                   ; number of secs prog must stay running (def. 1)
  153. ;startretries=3                ; max # of serial start failures (default 3)
  154. ;exitcodes=0,2                 ; 'expected' exit codes for process (default 0,2)
  155. ;stopsignal=QUIT               ; signal used to kill process (default TERM)
  156. ;stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10)
  157. ;stopasgroup=false             ; send stop signal to the UNIX process group (default false)
  158. ;killasgroup=false             ; SIGKILL the UNIX process group (def false)
  159. ;user=chrism                   ; setuid to this UNIX account to run the program
  160. ;redirect_stderr=true          ; redirect proc stderr to stdout (default false)
  161. ;stdout_logfile=/a/path        ; stdout log path, NONE for none; default AUTO
  162. ;stdout_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
  163. ;stdout_logfile_backups=10     ; # of stdout logfile backups (default 10)
  164. ;stdout_events_enabled=false   ; emit events on stdout writes (default false)
  165. ;stderr_logfile=/a/path        ; stderr log path, NONE for none; default AUTO
  166. ;stderr_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
  167. ;stderr_logfile_backups        ; # of stderr logfile backups (default 10)
  168. ;stderr_events_enabled=false   ; emit events on stderr writes (default false)
  169. ;environment=A="1",B="2"       ; process environment additions
  170. ;serverurl=AUTO                ; override serverurl computation (childutils)
  171.  
  172. ; The below sample group section shows all possible group values,
  173. ; create one or more 'real' group: sections to create "heterogeneous"
  174. ; process groups.
  175.  
  176. ;[group:thegroupname]
  177. ;programs=progname1,progname2  ; each refers to 'x' in [program:x] definitions
  178. ;priority=999                  ; the relative start priority (default 999)
  179.  
  180. ; The [include] section can just contain the "files" setting.  This
  181. ; setting can list multiple files (separated by whitespace or
  182. ; newlines).  It can also contain wildcards.  The filenames are
  183. ; interpreted as relative to this file.  Included files *cannot*
  184. ; include files themselves.
  185.  
  186. ;[include]
  187. ;files = relative/directory/*.ini

关键部分是program:nmbs, program:spvs-03和program:ui，这三部分为主机cma03配置了让supervisord管理的storm进程NimbusServer, Supervisor和Mdrillui。

有几个配置项值得解释一下，可以根据需要自行设置。

1. stopasgroup=true。这一配置项的作用是：如果supervisord管理的进程px又产生了若干子进程，使用supervisorctl 停止px进程，停止信号会传播给px产生的所有子进程，确保子进程也一起停止。这一配置项对希望停止所有进程的需求是非常有用的。

2. autostart=true。这一配置项的作用是：当启动supervisord的时候会将该配置项设置为true的所有进程自动启动。

【启动supervisord】

　　确保配置无误后可以在每台主机上使用下面的命令启动supervisor的服务器端supervisord

  1. supervisord

【停止supervisord】

  1. supervisorctl shutdown

【重新加载配置文件】

  1. supervisorctl reload

【进程管理】

1. 启动supervisord管理的所有进程

  1. supervisorctl start all

2. 停止supervisord管理的所有进程

  1. supervisorctl stop all

3. 启动supervisord管理的某一个特定进程

  1. supervisorctl start program-name // program-name为[program:xx]中的xx

4.  停止supervisord管理的某一个特定进程

  1. supervisorctl stop program-name  // program-name为[program:xx]中的xx

5.  重启所有进程或所有进程

  1. supervisorctl restart all  // 重启所有
  2. supervisorctl reatart program-name // 重启某一进程，program-name为[program:xx]中的xx

6. 查看supervisord当前管理的所有进程的状态

  1. supervisorctl status

【遇到问题及解决方案】

在使用命令supervisorctl start all启动控制进程时，遇到如下错误

unix:///tmp/supervisor.sock no such file

出现上述错误的原因是supervisord并未启动，只要在命令行中使用命令sudo supervisord启动supervisord即可。

【遗留问题】

当集群规模扩大后，登录到每台主机使用supervior控制进程也是很麻烦的，能不能用一台主机作为客户端，同时连接集群中的所有主机，以一种中 心化的方式统一管理集群中的所有进程？之前一直使用的方式是使用交互式工具expect。supervisor本身有没有提供一种机制实现集群中所有进程 的中央化管理？

目前测试成功的是使用一台主机作为客户端（supervisorctl），控制另一台服务器(supervisord)主机上的状态。方法是在服务 器端配置[inet_http_server]部分，开启TCP端口监听。客户端配置[supervisorctl]部分，指定服务器端的 serverurl，连接服务器端监听的端口。但是一个客户端只能连接一个服务器，无法指定多个服务器。

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