程序有时候会莫名的挂掉,这里使用supervisor保证其运行。以及开机自启动。
安装supervisor
supervisor使用Python编写,需要有Python环境。
yum源安装
yum install supervisor
easy_install安装
easy_install supervisor
pip安装
pip install supervisor
配置supervisor
生成配置文件
echo_supervisord_conf > /etc/supervisord.conf
修改配置文件
vim /etc/supervisord.conf
\#修改files最后两行行,配置目录
[include]
files = /etc/supervisor/conf.d/*.conf
supervisor会扫描/etc/supervisor/conf.d/目录下的*.conf配置文件
添加监控配置
mkdir -p /etc/supervisor/conf.d/
vim /etc/supervisor/conf.d/tomcat.conf
\#增加以下配置
[program:tomcat]
command=启动命令
directory=/opt/tools/
user=root
numprocs = 1
autostart=true
autorestart=true
生效并启动
chkconfig supervisord on
supervisord -c /etc/supervisord.conf
或者
supervisorctl -c /etc/supervisord.conf start all
或者
supervisorctl -c /etc/supervisord.conf start tomcat
supervisor常见操作
supervisorctl restart all 重启所有
supervisorctl status 查看supervisor运行状态
supervisorctl update 更新supervisor被监控项
supervisorctl shutdown 关闭
supervisorctl reload 重载
全部命令
add exit open reload restart start tail
avail fg pid remove shutdown status update
clear maintail quit reread signal stop version
配置说明
; Sample supervisor config file.
;
; For more information on the config file, please see:
; http://supervisord.org/configuration.html
;
; Note: shell expansion ("~" or "$HOME") is not supported. Environment
; variables can be expanded using this syntax: "%(ENV_HOME)s".
[unix_http_server] ; supervisord的unix socket服务配置
file=/tmp/supervisor.sock ; socket文件的保存目录
;chmod=0700 ; socket的文件权限 (default 0700)
;chown=nobody:nogroup ; socket的拥有者和组名
;username=user ; 默认不需要登陆用户 (open server)
;password=123 ; 默认不需要登陆密码 (open server)
;[inet_http_server] ; supervisord的tcp服务配置
;port=127.0.0.1:9001 ; tcp端口
;username=user ; tcp登陆用户
;password=123 ; tcp登陆密码
[supervisord] ; supervisord的主进程配置
logfile=/tmp/supervisord.log ; 主要的进程日志配置
logfile_maxbytes=50MB ; 最大日志体积，默认50MB
logfile_backups=10 ; 日志文件备份数目，默认10
loglevel=info ; 日志级别，默认info; 还有:debug,warn,trace
pidfile=/tmp/supervisord.pid ; supervisord的pidfile文件
nodaemon=false ; 是否以守护进程的方式启动
minfds=1024 ; 最小的有效文件描述符，默认1024
minprocs=200 ; 最小的有效进程描述符，默认200
;umask=022 ; 进程文件的umask，默认200
;user=chrism ; 默认为当前用户，如果为root则必填
;identifier=supervisor ; supervisord的表示符, 默认时'supervisor'
;directory=/tmp ; 默认不cd到当前目录
;nocleanup=true ; 不在启动的时候清除临时文件，默认false
;childlogdir=/tmp ; ('AUTO' child log dir, default $TEMP)
;environment=KEY=value ; 初始键值对传递给进程
;strip_ansi=false ; (strip ansi escape codes in logs; def. false)
; the below 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: sections
[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
[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 ; 如果设置应该与http_username相同
;password=123 ; 如果设置应该与http_password相同
;prompt=mysupervisor ; 命令行提示符，默认"supervisor"
;history_file=~/.sc_history ; 命令行历史纪录
; 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:theprogramname]
;command=/bin/cat ; 运行的程序 (相对使用PATH路径, 可以使用参数)
;process_name=%(program_name)s ; 进程名表达式，默认为%(program_name)s
;numprocs=1 ; 默认启动的进程数目，默认为1
;directory=/tmp ; 在运行前cwd到指定的目录，默认不执行cmd
;umask=022 ; 进程umask，默认None
;priority=999 ; 程序运行的优先级，默认999
;autostart=true ; 默认随supervisord自动启动，默认true
;autorestart=unexpected ; whether/when to restart (default: unexpected)
;startsecs=1 ; number of secs prog must stay running (def. 1)
;startretries=3 ; max # of serial start failures (default 3)
;exitcodes=0,2 ; 期望的退出码，默认0,2
;stopsignal=QUIT ; 杀死进程的信号，默认TERM
;stopwaitsecs=10 ; max num secs to wait b4 SIGKILL (default 10)
;stopasgroup=false ; 向unix进程组发送停止信号，默认false
;killasgroup=false ; 向unix进程组发送SIGKILL信号，默认false
;user=chrism ; 为运行程序的unix帐号设置setuid
;redirect_stderr=true ; 将标准错误重定向到标准输出，默认false
;stdout_logfile=/a/path ; 标准输出的文件路径NONE＝none;默认AUTO
;stdout_logfile_maxbytes=1MB ; max # logfile bytes b4 rotation (default 50MB)
;stdout_logfile_backups=10 ; # of stdout logfile backups (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 (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 below sample eventlistener section shows all possible
; eventlistener subsection values, create one or more 'real'
; eventlistener: sections to be able to handle event notifications
; sent by supervisor.
;[eventlistener:theeventlistenername]
;command=/bin/eventlistener ; 运行的程序 (相对使用PATH路径, 可以使用参数)
;process_name=%(program_name)s ; 进程名表达式，默认为%(program_name)s
;numprocs=1 ; 默认启动的进程数目，默认为1
;events=EVENT ; event notif. types to subscribe to (req'd)
;buffer_size=10 ; 事件缓冲区队列大小，默认10
;directory=/tmp ; 在运行前cwd到指定的目录，默认不执行cmd
;umask=022 ; 进程umask，默认None
;priority=-1 ; 程序运行的优先级，默认-1
;autostart=true ; 默认随supervisord自动启动，默认true
;autorestart=unexpected ; whether/when to restart (default: unexpected)
;startsecs=1 ; number of secs prog must stay running (def. 1)
;startretries=3 ; max # of serial start failures (default 3)
;exitcodes=0,2 ; 期望的退出码，默认0,2
;stopsignal=QUIT ; 杀死进程的信号，默认TERM
;stopwaitsecs=10 ; max num secs to wait b4 SIGKILL (default 10)
;stopasgroup=false ; 向unix进程组发送停止信号，默认false
;killasgroup=false ; 向unix进程组发送SIGKILL信号，默认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 (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 ; # of stderr logfile backups (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 below sample group section shows all possible group values,
; create one or more 'real' group: sections to create "heterogeneous"
; process groups.
;[group:thegroupname]
;programs=progname1,progname2 ; 任何在[program:x]中定义的x
;priority=999 ; 程序运行的优先级，默认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
原文链接：安装supervisor监控程序执行，转载请注明来源！