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  • supervisor 启动 celery 及启动中的问题

    一、前言

    本教程重点在于supervisor的配置过程,celery的安装配置请参考其他教程

    二、安装supervisor

    1.安装命令
    pip install supervisor # supervisor目前只支持python2,但是作为容器来说,并不影响监控程序是python3的程序
    2.执行 配置文件 生成命令
    echo_supervisord_conf > /etc/supervisord.conf
    3.创建配置文件需要的文件夹
    mkdir /var/log/celery/
    mkdir /var/log/celery/
    mkdir /var/log/supervisor/
    mkdir /var/run/supervisor/
    4.更改权限
    mkdir /var/log/celery/
    mkdir /var/log/celery/
    mkdir /var/log/supervisor/
    mkdir /var/run/supervisor/
    5.编辑配置文件 /etc/supervisord.conf 加入celery配置项(本配置中没使用beat)
    ; ==================================
    ;  celery worker supervisor example
    ; ==================================
    
    [program:celery]
    ; 如果使用的是虚拟环境(virtualenv等)要把celery命令路径写全
    command=/home/hiveme/env/cznews/bin/celery worker -A cznews --loglevel=INFO
    
    ; Alternatively,
    ;command=celery --app=your_app.celery:app worker --loglevel=INFO -n worker.%%h
    ; Or run a script
    ;command=celery.sh
    
    directory=/home/hiveme/cznews/  ;项目所在目录
    user=nobody
    numprocs=1
    stdout_logfile=/var/log/celery/worker.log ;celery输出日志文件
    stderr_logfile=/var/log/celery/workererr.log ;celery错误输出文件
    autostart=true
    autorestart=true
    startsecs=10
    
    ; Need to wait for currently executing tasks to finish at shutdown.
    ; Increase this if you have very long running tasks.
    stopwaitsecs = 600
    
    ; Causes supervisor to send the termination signal (SIGTERM) to the whole process group.
    stopasgroup=true
    
    ; Set Celery priority higher than default (999)
    ; so, if rabbitmq is supervised, it will start first.
    priority=1000
    
    
    ; ================================
    ;  celery beat supervisor example
    ; ================================
    
    ;[program:celerybeat]
    ; Set full path to celery program if using virtualenv
    ;command=/home/hiveme/env/cznews/bin/celery beat --schedule /var/lib/celery/beat.db --loglevel=INFO
    ;command=celery beat -A myapp --schedule /var/lib/celery/beat.db --loglevel=INFO ;the ordinary
    
    ; remove the -A myapp argument if you aren't using an app instance
    
    ;directory=/home/hiveme/cznews/
    ;user=nobody
    ;numprocs=1
    ;stdout_logfile=/var/log/celery/beat.log
    ;stderr_logfile=/var/log/celery/beaterr.log
    ;autostart=true
    ;autorestart=true
    ;startsecs=10
    
    ; Causes supervisor to send the termination signal (SIGTERM) to the whole process group.
    ;stopasgroup=true
    
    ; if rabbitmq is supervised, set its priority higher
    ; so it starts first
    ;priority=999

    三、启动supervisor(需要使用root权限)


    supervisord -c /etc/supervisord.conf


    四、启动过程中的问题(查看supervisord.log和celery的错误日志)

    注意重启服务器
    1.INFO spawnerr: can't find command 'celery'(supervisord.log)
    解决方案:
    检查 celery是否安装在虚拟环境中,如果是在配置文件中 需要把所有celery的命令改成 完整的路径

    2.INFO spawnerr: unknown error making dispatchers for 'celery': EACCES(supervisord.log)
    主要是没有权限操作日志文件
    解决方案:
    chown youruser:youruser -R /var/log/supervisor/
    chown youruser:youruser -R /var/run/supervisor/
    chown youruser:youruser -R /var/log/celery/
    chown youruser:youruser -R /var/log/celery/

    3.exited: celery (exit status 127; not expected)(supervisord.log)

    这日志报错,网上是说127是指命令不合法
    但是当把命令单独拿到外面执行时也可以执行,进入celery日志查看后发现如下错误:
    supervisor: couldn't setuid to 65534: Can't drop privilege as nonroot usersupervisor: child process was not spawned

    还是说权限问题,
    解决方案:

    目前是通过root运行解决的,有更好办法的小伙伴可以和大家一起交流交流

    4.supervisorctl: error: <class 'socket.error'>, [Errno 101] Network is unreachable: file: /data/openfalcon/open-falcon/python/lib/python2.7/socket.py line: 575

    解决方案

    运行supervisorctl时指定配置文件才可以正常运行supervisorctl,否则supervisorctl默认去/etc/supervisord.conf去读取配置,导致错误。

    supervisorctl -c your/path/to/your/conf





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  • 原文地址:https://www.cnblogs.com/hiveme/p/8194821.html
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