前言
最近使用了一下laravel的队列处理，用到了进程管理，官方推荐使用supervisor实现持久化，否则一旦进程崩溃业务无法重启可能就会雪崩，于是也就捣鼓了一番，其中还有自己犯的一些错误，一会也会列出来避免后人踩坑。
认识supervisor
Supervisor 是一个 C/S 模型的程序，supervisord 是 server 端，supervisorctl 是 client 端。使用的时候server挂起，由client 进行开始，停止，重启，更新配置文件等操作
交代环境
我是用的是centos7 ，似乎在ubuntu中安装的坑会少一些，具体不太明确，laravel官方给的操作是基于ubuntu的，在centos下会出现一些问题
安装
在这里我测试了几种安装方式：
-
yum -y install supervisor（划重点！我没使用这种方式）
这种方式在我的环境里不通过，supervisor在我的虚拟机中安装抛出了python版本错误的问题，纠结了几个小时索性放弃，尝试别的方法 -
yum -y install python-setuptools
easy_install supervisor
这是在别人的博客中寻找的方法，对于easy_install 大佬也给出了解释：easy_install是setuptools包里带的一个命令，使用easy_install实际上是在调用setuptools来完成安装模块的工作,所以安装setuptools即可。
执行完这两句后会生成三个执行程序：supervisortd、supervisorctl、echo_supervisord_conf，分别是supervisor的守护进程服务（用于接收进程管理命令）、客户端（用于和守护进程通信，发送管理进程的指令）、生成初始配置文件程序。
配置
- 创建配置目录
mkdir /etc/supervisor - 这里简单介绍一下，上文也提到过
echo_supervisord_conf是supervisor的初始化配置文件程序，试着在linux终端输入会出现
[root@localhost supervisor]# echo_supervisord_conf
; Sample supervisor config file.
;
; For more information on the config file, please see:
; http://supervisord.org/configuration.html
;
; Notes:
; - Shell expansion ("~" or "$HOME") is not supported. Environment
; variables can be expanded using this syntax: "%(ENV_HOME)s".
; - Quotes around values are not supported, except in the case of
; the environment= options as shown below.
; - Comments must have a leading space: "a=b ;comment" not "a=b;comment".
; - Command will be truncated if it looks like a config file comment, e.g.
; "command=bash -c 'foo ; bar'" will truncate to "command=bash -c 'foo ".
[unix_http_server]
file=/tmp/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]
logfile=/tmp/supervisord.log ; main log file; default $CWD/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
pidfile=/tmp/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
;umask=022 ; process file creation umask; default 022
;user=supervisord ; setuid to this UNIX account at startup; recommended 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]
serverurl=unix:///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 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 ; 'expected' exit codes used with autorestart (default 0)
;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)
;stdout_syslog=false ; send stdout to syslog with process name (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)
;stderr_syslog=false ; send stderr to syslog with process name (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 ; 'expected' exit codes used with autorestart (default 0)
;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)
;stdout_syslog=false ; send stdout to syslog with process name (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)
;stderr_syslog=false ; send stderr to syslog with process name (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.
;[include]
;files = relative/directory/*.ini
这么一大坨配置.... 别慌，需要的配置其实不多，需要详细知道配置的话就自行百度翻译吧！
- 使用
echo_supervisord_conf > /etc/supervisor/supervisord.conf将这一大坨写到我们刚才创建的目录并且命名文件为supervisord.conf -
vi /etc/supervisor/supervisord.conf打开vi编辑器 - 然后找到最后面有个
;[include]
;files = relative/directory/*.ini
改成
[include]
files = /etc/supervisor/conf.d/*.ini
友情提醒[include] 这个也得去分号，否则后续你要监听的所有进程都无法使用（是的我踩了这个坑QwQ）
- （如果不配置web服务监控的话这部可以省略）将
;[inet_http_server] ; inet (TCP) server disabled by default
;port=127.0.0.1:9001 ; ip_address:port specifier, *:port for all iface ip和端口
;username=user ; default is no username (open server) 账号
;password=123 ; default is no password (open server) 密码
改成
[inet_http_server] ; inet (TCP) server disabled by default
port=127.0.0.1:9001 ; ip_address:port specifier, *:port for all iface ip和端口
username=user ; default is no username (open server) 账号
password=123 ; default is no password (open server) 密码
-
vi /etc/supervisor/conf.d/laravel_worker.ini创建我要监听的laravel队列服务 - 如果抛出conf.d目录不存在则自行
mkdir一个conf.d目录 - 写入配置文件
[program:laravel-worker] #监听进程的名称（随便写）
user=www
process_name=%(program_name)s_%(process_num)02d
command=php /media/linuxsite/xxxxxxx/artisan queue:work --sleep=3 --tries=3
autostart=true
autorestart=true
numprocs=8
redirect_stderr=true
stdout_logfile=/media/linuxsite/xxxxxxx/worker.log
给出说明
command:XX 程序启动命令
autostart=true ;在supervisord启动的时候也自动启动
autorestart=true ;程序退出后自动重启,可选值：[unexpected,true,false]，默认为unexpected，表示进程意外杀死后才重启
user=www ;用哪个用户启动进程，默认是root
numprocs=8 ;指定 Supervisor 运行 8 个 queue:work 进程并且监管它们，
redirect_stderr=true ;stderr重定向到stdout，默认false
stdout_logfile=/www/wwwroot/app/worker.log ;stdout 日志文件，需要注意当指定目录不存在时
无法正常启动，所以需要手动创建目录（supervisord 会自动创建日志文件）
- 然后就是启动服务了 执行
supervisord开启服务 - 服务开启后就用
supervisorctl去勾引它 - 这里注意一下，一般如果报错
error: <class 'socket.error'>, [Errno 2] No such file or directory: file: /usr/lib64/python2.7/socket.py line: 224
说明要么你没启动服务，要么你配置文件的user没写！
supervisorctl 终端命令
supervisorctl status #查看运行状态
supervisorctl stop xxxx #单独停止某个进程
supervisorctl stop all #停止所有进程
supervisorctl start xxxx #单独启动某个进程
supervisorctl restart xxxx #单独重启某个进程
supervisorctl reload #重新启动配置中的所有程序
supervisorctl update #更新新的配置到supervisor
其他
- 至于开机自启动，可以网上找一下命令，或者直接看下面贴的链接，前辈们说的很详细。
- 如果开启了web服务监听，则可以输入你设置的
地址:ip进入监控页面
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