与主管一起运行python脚本

问题描述 投票:1回答:4

我从here复制来运行我的Python代码作为守护进程。额外的正常运行时间。我认为使用supervisor来保持这个守护进程运行会更好。

我这样做了python_deamon.conf

[program:python_deamon]
directory=/usr/local/python_deamon/
command=/usr/local/python_venv/bin/python daemon_runnner.py start
stderr_logfile=/var/log/gunicorn.log
stdout_logfile=/var/log/gunicorn.log
autostart=true
autorestart=true

问题是虽然supervisor成功启动了python_daemon但它仍在重试。

2015-09-23 16:10:45,592 CRIT Supervisor running as root (no user in config file)
2015-09-23 16:10:45,592 WARN Included extra file "/etc/supervisor/conf.d/python_daemon.conf" during parsing
2015-09-23 16:10:45,592 INFO RPC interface 'supervisor' initialized
2015-09-23 16:10:45,592 CRIT Server 'unix_http_server' running without any HTTP authentication checking
2015-09-23 16:10:45,592 INFO supervisord started with pid 13880
2015-09-23 16:10:46,595 INFO spawned: 'python_deamon' with pid 17884
2015-09-23 16:10:46,611 INFO exited: python_deamon (exit status 1; not expected)
2015-09-23 16:10:47,614 INFO spawned: 'python_deamon' with pid 17885
2015-09-23 16:10:47,630 INFO exited: python_deamon (exit status 1; not expected)
2015-09-23 16:10:49,635 INFO spawned: 'python_deamon' with pid 17888
2015-09-23 16:10:49,656 INFO exited: python_deamon (exit status 1; not expected)
2015-09-23 16:10:52,662 INFO spawned: 'python_deamon' with pid 17891
2015-09-23 16:10:52,680 INFO exited: python_deamon (exit status 1; not expected)
2015-09-23 16:10:53,681 INFO gave up: python_deamon entered FATAL state, too many start retries too quickly

只是为了记录后重写run()方法我永远不会返回任何东西。

有可能做我想做的事情还是我愚蠢?

P.S:我知道整个问题的根本原因是因为run()永远不会返回任何主管一直试图启动它,因此认为该过程失败并将状态赋予FATAL Exited too quickly (process log may have details)。 我的实际问题是我做得对吗?或者这可以这样做吗?

P.P.S:独立(没有主管)daemon_runnner.py运行良好,有和没有sudo权限。

python daemon supervisord python-daemon
4个回答
3
投票

尝试设置startsecs = 0:

[program:foo]
command = ls
startsecs = 0
autorestart = false
http://supervisord.org/configuration.html

startsecs

程序在启动后需要保持运行以考虑启动成功的总秒数。如果程序在启动后的这么多秒内没有停留,即使它以“预期的”退出代码退出(参见exitcodes),启动也将被视为失败。设置为0表示程序无需在任何特定时间内保持运行。


0
投票

您的脚本失败并退出状态。主管只是试图重启脚本。

Supervisor以root权限启动,也许它会将这些权限赋予您的脚本,这会导致它失败(源目录中的更改或其他内容)。检查在没有Supervisor的情况下以root身份运行守护程序时会发生什么。

我们确实需要更多信息才能知道它失败的原因。


0
投票

这就是我通常做的事情:

  • 创建一个描述新Python脚本的service.conf文件。这个脚本引用了shell脚本,这是实际启动Python脚本的脚本。这个.conf文件住在/etc/supervisor/conf.d
  • 创建一个启动Python脚本的shell脚本。更改可执行文件的权限chmod 755 service.sh。在这个脚本中,我们实际上启动了Python脚本。
  • 配置log_stderr和stderr_logfile以验证问题。
  • 使用重新加载更新主管,然后检查状态:

主管>地位

alexad RUNNING pid 32657,正常运行时间0:21:05

service.conf

[program:alexad]
; Set full path to celery program if using virtualenv

command=sh /usr/local/src/gonzo/supervisorctl/alexad.sh
directory=/usr/local/src/gonzo/services/alexa
log_stdout=true             ; if true, log program stdout (default true)
log_stderr=true             ; if true, log program stderr (default false)
stderr_logfile=/usr/local/src/gonzo/log/alexad.err
logfile=/usr/local/src/gonzo/log/alexad.log
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

; When resorting to send SIGKILL to the program to terminate it
; send SIGKILL to its whole process group instead,
; taking care of its children as well.
killasgroup=true

; Set Celery priority higher than default (999)
priority=500

service.是

#!/bin/bash
cd /usr/local/src/gonzo/services/alexa
exec python reader.py

-1
投票

不确定问题是否与守护程序运行程序相同,但如果直接使用守护程序上下文并使用supervisord,则需要将context.detach_process设置为False

© www.soinside.com 2019 - 2024. All rights reserved.