监督日志不显示我的输出 [英] supervisord logs don't show my output

问题描述

我正在运行一个[程序:x]，它会打印/sys.stdout.write很多东西.在[supervisord]的AUTO子日志目录或[program:x]的stdout_logfile中都没有出现 我想念什么吗?

I have a [program:x] running and it prints / sys.stdout.writes a lot of things. None of which comes up in either in the AUTO childlogdir of [supervisord] or in stdout_logfile of [program:x] Am I missing something?

如何捕获[program:x]中所有已打印或标准输出的内容?

How do I capture all that is printed or stdout-ed from [program:x] ?

在我的程序中，我明确地将两者都做

In my program I am explicitly doing both,

print "something"
sys.stdout.write("something") 

相关的supervisord.conf文件

Relevant supervisord.conf file

[supervisord]
childlogdir = %(here)s/../logs/supervisord/
logfile = %(here)s/../logs/supervisord/supervisord.log
logfile_maxbytes = 100MB
logfile_backups = 10
loglevel = info
pidfile = %(here)s/../logs/supervisord/supervisord.pid
umask = 022
nodaemon = false
nocleanup = false

[program:x]
directory = %(here)s/../
command = python file.py
autostart=true
autorestart=true
redirect_stderr=true  
stdout_logfile = /appropriate-path/to/access.log

推荐答案

Python输出被缓冲.在您supervisord.conf中设置环境变量PYTHONUNBUFFERED=1 禁用缓冲并尽快显示日志消息:

Python output is buffered. Setting the environment variable PYTHONUNBUFFERED=1 in you supervisord.conf will disable buffering and show log messages sooner:

[program:x]
environment = PYTHONUNBUFFERED=1

或添加 -u命令行开关到python命令:

or add the -u command-line switch to python command:

[program:x]
command = python -u file.py

或者，您可以显式刷新sys.stdout处理程序:

Alternatively you can flush the sys.stdout handler explicitly:

sys.stdout.flush()

在python 3.3及更高版本上，您可以添加flush=True参数以使函数为您执行此操作:

On python 3.3 and up, you can add the flush=True parameter to have the function do this for you:

print(something, flush=True)

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