安装
可以用Python的pip工具进行安装
sudo pip install supervisor
也可以使用Linux的包管理命令安装
sudo apt-get install supervisor
配置
运行如下命令可以查看默认的配置
echo_supervisord_conf
如果需要修改默认的配置，可以运行下面命令生成一个默认的配置文件
echo_supervisord_conf > /etc/supervisord.conf
修改默认配置
默认配置文件中的
supervisord.sock、supervisord.log以及supervisord.pid是放在/tmp目录下，这个目录存放的是Linux中的临时文件，一旦被系统删除，就会提示unix:///tmp/supervisor.sock no such file，所以我们要把这三个文件放到其他目录中保存。
此处注意中文注释的几个需要修改的地方
[unix_http_server]
;此处修改为/var/run目录，避免被系统删除
file=/var/run/supervisor.sock ; the path to the socket file
;chmod=0700 ; socket file mode (default 0700)
;chown=nobody:nogroup ; socket file uid:gid owner
;username=user ; default is no username (open server)
;password=123 ; default is no password (open server)
;[inet_http_server] ; inet (TCP) server disabled by default
;port=127.0.0.1:9001 ; ip_address:port specifier, *:port for all iface
;username=user ; default is no username (open server)
;password=123 ; default is no password (open server)
[supervisord]
;此处修改为/var/log/supervisor目录
logfile=/var/log/supervisor/supervisord.log
logfile_maxbytes=50MB ; max main logfile bytes b4 rotation; default 50MB
logfile_backups=10 ; # of main logfile backups; 0 means none, default 10
loglevel=info ; log level; default info; others: debug,warn,trace
;此处修改为/var/run目录
pidfile=/var/run/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
;umask=022 ; process file creation umask; default 022
;user=chrism ; default is current user, required if root
;identifier=supervisor ; supervisord identifier, default is 'supervisor'
;directory=/tmp ; default is not to cd during start
;nocleanup=true ; don't clean up tempfiles at start; default false
;childlogdir=/tmp ; 'AUTO' child log dir, default $TEMP
;environment=KEY="value" ; key value pairs to add to environment
;strip_ansi=false ; strip ansi escape codes in logs; def. false
; The rpcinterface:supervisor section must remain in the config file for
; RPC (supervisorctl/web interface) to work. Additional interfaces may be
; added by defining them in separate [rpcinterface:x] sections.
[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
; The supervisorctl section configures how supervisorctl will connect to
; supervisord. configure it match the settings in either the unix_http_server
; or inet_http_server section.
[supervisorctl]
;此处是关键，否则执行supervisorctl status会爆出unix:// not found错误
serverurl=unix:///var/run/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 in [*_http_server] if set
;password=123 ; should be same as in [*_http_server] if set
;prompt=mysupervisor ; cmd line prompt (default "supervisor")
;history_file=~/.sc_history ; use readline history if available
; The sample program section below shows all possible program subsection values.
; Create one or more 'real' program: sections to be able to control them under
; supervisor.
;[program:theprogramname]
;command=/bin/cat ; the program (relative uses PATH, can take args)
;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
;numprocs=1 ; number of processes copies to start (def 1)
;directory=/tmp ; directory to cwd to before exec (def no cwd)
;umask=022 ; umask for process (default None)
;priority=999 ; the relative start priority (default 999)
;autostart=true ; start at supervisord start (default: true)
;startsecs=1 ; # of secs prog must stay up to be running (def. 1)
;startretries=3 ; max # of serial start failures when starting (default 3)
;autorestart=unexpected ; when to restart if exited after running (def: unexpected)
;exitcodes=0,2 ; 'expected' exit codes used with autorestart (default 0,2)
;stopsignal=QUIT ; signal used to kill process (default TERM)
;stopwaitsecs=10 ; max num secs to wait b4 SIGKILL (default 10)
;stopasgroup=false ; send stop signal to the UNIX process group (default false)
;killasgroup=false ; SIGKILL the UNIX process group (def false)
;user=chrism ; setuid to this UNIX account to run the program
;redirect_stderr=true ; redirect proc stderr to stdout (default false)
;stdout_logfile=/a/path ; stdout log path, NONE for none; default AUTO
;stdout_logfile_maxbytes=1MB ; max # logfile bytes b4 rotation (default 50MB)
;stdout_logfile_backups=10 ; # of stdout logfile backups (0 means none, default 10)
;stdout_capture_maxbytes=1MB ; number of bytes in 'capturemode' (default 0)
;stdout_events_enabled=false ; emit events on stdout writes (default false)
;stderr_logfile=/a/path ; stderr log path, NONE for none; default AUTO
;stderr_logfile_maxbytes=1MB ; max # logfile bytes b4 rotation (default 50MB)
;stderr_logfile_backups=10 ; # of stderr logfile backups (0 means none, default 10)
;stderr_capture_maxbytes=1MB ; number of bytes in 'capturemode' (default 0)
;stderr_events_enabled=false ; emit events on stderr writes (default false)
;environment=A="1",B="2" ; process environment additions (def no adds)
;serverurl=AUTO ; override serverurl computation (childutils)
; The sample eventlistener section below shows all possible eventlistener
; subsection values. Create one or more 'real' eventlistener: sections to be
; able to handle event notifications sent by supervisord.
;[eventlistener:theeventlistenername]
;command=/bin/eventlistener ; the program (relative uses PATH, can take args)
;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
;numprocs=1 ; number of processes copies to start (def 1)
;events=EVENT ; event notif. types to subscribe to (req'd)
;buffer_size=10 ; event buffer queue size (default 10)
;directory=/tmp ; directory to cwd to before exec (def no cwd)
;umask=022 ; umask for process (default None)
;priority=-1 ; the relative start priority (default -1)
;autostart=true ; start at supervisord start (default: true)
;startsecs=1 ; # of secs prog must stay up to be running (def. 1)
;startretries=3 ; max # of serial start failures when starting (default 3)
;autorestart=unexpected ; autorestart if exited after running (def: unexpected)
;exitcodes=0,2 ; 'expected' exit codes used with autorestart (default 0,2)
;stopsignal=QUIT ; signal used to kill process (default TERM)
;stopwaitsecs=10 ; max num secs to wait b4 SIGKILL (default 10)
;stopasgroup=false ; send stop signal to the UNIX process group (default false)
;killasgroup=false ; SIGKILL the UNIX process group (def false)
;user=chrism ; setuid to this UNIX account to run the program
;redirect_stderr=false ; redirect_stderr=true is not allowed for eventlisteners
;stdout_logfile=/a/path ; stdout log path, NONE for none; default AUTO
;stdout_logfile_maxbytes=1MB ; max # logfile bytes b4 rotation (default 50MB)
;stdout_logfile_backups=10 ; # of stdout logfile backups (0 means none, default 10)
;stdout_events_enabled=false ; emit events on stdout writes (default false)
;stderr_logfile=/a/path ; stderr log path, NONE for none; default AUTO
;stderr_logfile_maxbytes=1MB ; max # logfile bytes b4 rotation (default 50MB)
;stderr_logfile_backups=10 ; # of stderr logfile backups (0 means none, default 10)
;stderr_events_enabled=false ; emit events on stderr writes (default false)
;environment=A="1",B="2" ; process environment additions
;serverurl=AUTO ; override serverurl computation (childutils)
; The sample group section below shows all possible group values. Create one
; or more 'real' group: sections to create "heterogeneous" process groups.
;[group:thegroupname]
;programs=progname1,progname2 ; each refers to 'x' in [program:x] definitions
;priority=999 ; the relative start priority (default 999)
; The [include] section can just contain the "files" setting. This
; setting can list multiple files (separated by whitespace or
; newlines). It can also contain wildcards. The filenames are
; interpreted as relative to this file. Included files *cannot*
; include files themselves.
；在最后加上include，新增的配置将在/etc/supervisord.d/conf.d目录下并以.conf结尾
[include]
files = /etc/supervisord.d/conf.d/*.conf
上面的一些目录如果做了修改首先要创建这些目录，并且赋予相应的权限
sudo chmod 777 /var/run
sudo chmod 777 /var/log/supervisor
现在我们启动服务
supervisord -c /etc/supervisord.conf
此处最好别用root权限启动，否则可能导致后面php artisan命令出错
现在我们查看进程
pgrep supervisord | xargs ps -u --pid
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 13744 0.0 1.7 226320 17460 ? Ss 1月12 0:08 /bin/python /usr/bin/supervisord -c /etc/supervisord.conf
具体项目配置
Supervisorctl 是 Supervisord 的一个命令行客户端工具，启动时需要指定与 Supervisord 使用同一份配置文件
我们在上面默认配置文件中加入了[include]，所以我们在/etc/supervisord.d/conf.d下新建一个配置文件larashop-worker.conf
[program:larashop-worker] ;项目名称
process_name=%(program_name)s_%(process_num)02d
command=php (填入你的artisan路径)/artisan queue:work redis --sleep=3 --tries=3 ;需要启动的命令
autostart=true
autorestart=true
user=root ;此处填入你运行WEB应用的用户
numprocs=8 ;进程数
redirect_stderr=true ;把 stderr 重定向到 stdout，默认 false
stdout_logfile=/var/log/supervisor/larashop-queue.log ;注意分配好日志文件夹权限
配置完成后我们执行
supervisorctl reread # 读取有更新（增加）的配置文件，不会启动新添加的程序
supervisorctl update # 重启配置文件修改过的程序
supervisorctl start larashop-worker:* # 启动 larashop-worker 程序
运行
supervisorctl status # 查看状态
看到
larashop-worker:larashop-worker_00 RUNNING pid 13769, uptime 14:03:33
larashop-worker:larashop-worker_01 RUNNING pid 13770, uptime 14:03:33
larashop-worker:larashop-worker_02 RUNNING pid 13767, uptime 14:03:33
larashop-worker:larashop-worker_03 RUNNING pid 13768, uptime 14:03:33
larashop-worker:larashop-worker_04 RUNNING pid 13765, uptime 14:03:33
larashop-worker:larashop-worker_05 RUNNING pid 13766, uptime 14:03:33
larashop-worker:larashop-worker_06 RUNNING pid 13763, uptime 14:03:33
larashop-worker:larashop-worker_07 RUNNING pid 13764, uptime 14:03:33
说明Laravel队列已经开始正常运行了
如果在Laravel中修改了队列代码，需要重启Supervisor才能生效
可能出现的问题
1. ERROR (spawn error)
此时如果提示
larashop-worker:larashop-worker_00: ERROR (spawn error)
...
先检查上述的日志目录有没有权限，如果权限正常，则进入上面设置的日志目录查看日志文件
我这里进入var/log/supervisor查看日志文件larashop-queue.conf
可以看到错误均为
PHP Parse error: syntax error, unexpected 'class' (T_CLASS), expecting identifier (T_STRING) or variable (T_VARIABLE) or '{' or '$' in xxx/artisan on line 33
然后我进入Laravel目录，使用
sudo php artisan 你的命令
执行artisan命令，同样爆出这个错误。所以原因在于启动supervisord和服务端的时候使用了root权限导致
先将原来的进程kill掉，使用非root权限重新执行服务端和客户端即可成功运行
2. unix:///tmp/supervisor.sock no such file
在服务端配置文件中将/tmp/supervisor.sock修改为var/run/supervisor.sock
3. supervisorctl start错误
执行supervisorctl start 你的项目名称，迟迟不出结果，按ctrl+c后爆出错误
Traceback (most recent call last):
File "/bin/supervisorctl", line 11, in
...
建议kill掉supervisord的进程，然后重新用pip安装一次，并重新配置一遍默认配置文件
链接
- 使用 supervisor 管理进程
- supervisor 管理进程简明教程