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python-3.x - uwsgi无法从supervisord启动,但在命令行中工作正常,为什么?

转载 作者:行者123 更新时间:2023-12-02 13:10:20 32 4
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我在我的 Debian7 VPS 上安装了 Anaconda Python3.6,并且 uwsgi 是通过pip安装的。
当我使用 uwsgi 在命令行中使用 .ini 部署我的 flask 应用程序时,一切都很好 文件:

[uwsgi]  
master = true
processes = 1
threads = 1
wsgi-file = /usr/local/anaconda3/envs/p3/myApp.py
callable = app
http-socket = 0.0.0.0:5050
virtualenv = /usr/local/anaconda3/envs/p3

部署成功:

root@server58 envs/p3# uwsgi myApp.ini  
[uWSGI] getting INI configuration from myApp.ini
*** Starting uWSGI 2.0.15 (64bit) on [Wed May 3 21:38:50 2017] ***
compiled with version: 4.7.2 on 25 April 2017 09:17:47
os: Linux-2.6.32-042stab116.1 #1 SMP Wed May 4 16:21:02 MSK 2016
nodename: server58.mainpacket.com
machine: x86_64
clock source: unix
pcre jit disabled
detected number of CPU cores: 1
current working directory: /usr/local/anaconda3/envs/p3
detected binary path: /usr/local/anaconda3/bin/uwsgi
uWSGI running as root, you can use --uid/--gid/--chroot options
*** WARNING: you are running uWSGI as root !!! (use the --uid flag) ***
your processes number limit is 514887
your memory page size is 4096 bytes
detected max file descriptor number: 1024
lock engine: pthread robust mutexes
thunder lock: disabled (you can enable it with --thunder-lock)
uwsgi socket 0 bound to TCP address 0.0.0.0:5050 fd 3
Python version: 3.6.0 |Anaconda 4.3.0 (64-bit)| (default, Dec 23 2016, 12:22:00) [GCC 4.4.7 20120313 (Red Hat 4.4.7-1)]
Set PythonHome to /usr/local/anaconda3/envs/p3
Python main interpreter initialized at 0x12e22a0
python threads support enabled
your server socket listen backlog is limited to 100 connections
your mercy for graceful operations on workers is 60 seconds
mapped 145536 bytes (142 KB) for 1 cores
*** Operational MODE: single process ***
WSGI app 0 (mountpoint='') ready in 0 seconds on interpreter 0x12e22a0 pid: 10409 (default app)
*** uWSGI is running in multiple interpreter mode ***
spawned uWSGI master process (pid: 10409)
spawned uWSGI worker 1 (pid: 10411, cores: 1)
[pid: 10411|app: 0|req: 1/1] 113.66.169.110 () {34 vars in 680 bytes} [Wed May 3 21:44:00 2017] GET /func2?op1=sdkfh&op2=385 => generated 17 bytes in 2 msecs (HTTP/1.1 200) 2 headers in 79 bytes (1 switches on core 0)
[pid: 10411|app: 0|req: 2/2] 113.66.169.110 () {34 vars in 643 bytes} [Wed May 3 21:44:01 2017] GET /favicon.ico => generated 233 bytes in 21 msecs (HTTP/1.1 404) 2 headers in 72 bytes (1 switches on core 0)

应用程序响应正确,一切看起来都很好。但是当我将部署放入 supervisor 并使用以下 .conf 文件时:

[program:myApp]  
command = /usr/local/anaconda3/bin/uwsgi
/usr/local/anaconda3/envs/p3/myApp.ini
autostart = true
startsecs = 5
startretries = 3
redirect_stderr = true
stdout_logfile = /usr/local/anaconda3/envs/p3/log_file
stdout_logfile_maxbytes = 1MB
stdout_logfile_backup = 5
stopsignal = QUIT

uwsgi 似乎无法启动我的应用程序,日志文件显示:

[uWSGI] getting INI configuration from /usr/local/anaconda3/envs/p3/myApp.ini  
*** Starting uWSGI 2.0.15 (64bit) on [Wed May 3 18:42:14 2017] ***
compiled with version: 4.7.2 on 25 April 2017 09:17:47
os: Linux-2.6.32-042stab116.1 #1 SMP Wed May 4 16:21:02 MSK 2016
nodename: server58.mainpacket.com
machine: x86_64
clock source: unix
pcre jit disabled
detected number of CPU cores: 1
current working directory: /
detected binary path: /usr/local/anaconda3/bin/uwsgi
uWSGI running as root, you can use --uid/--gid/--chroot options
*** WARNING: you are running uWSGI as root !!! (use the --uid flag) ***
your processes number limit is 514887
your memory page size is 4096 bytes
detected max file descriptor number: 1024
lock engine: pthread robust mutexes
thunder lock: disabled (you can enable it with --thunder-lock)
uwsgi socket 0 bound to TCP address 0.0.0.0:5050 fd 3
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
Python version: 3.6.0 |Continuum Analytics, Inc.| (default, Dec 23 2016, 12:22:00) [GCC 4.4.7 20120313 (Red Hat 4.4.7-1)]
Set PythonHome to /usr/local/anaconda3/envs/p3
Fatal Python error: Py_Initialize: Unable to get the locale encoding
ModuleNotFoundError: No module named 'encodings'

Current thread 0x00007fd6e509a700 (most recent call first):

如果我使用 gunicorn + supervisor 进行部署,效果完美。所以我相信这与 uwsgi 设置有关。但为什么它在命令行中工作正常,却在 supervisor 中失败?知道如何修复吗?

最佳答案

实验了几种方法,发现是uWSGI工作目录的问题。首先,您应该在环境中从源代码构建 uWSGI,稍后您将在其中运行应用程序。

激活Env,然后

cd path-to-env wget https://projects.unbit.it/downloads/uwsgi-2.0.15.tar.gz
tar -xvzf uwsgi-2.0.15.tar.gz
cd uwsgi-2.0.15
python uwsgiconfig.py --build

确保将 uwsgi 复制或软链接(soft link)到/path-to-env/bin 目录,并检查 uWSGI 是否工作。

然后记住将“chdir”选项添加到应用程序的.ini 文件中。就我而言:

[uwsgi]  
master = true
processes = 1
threads = 1
chdir = /usr/local/anaconda3/envs/p3
wsgi-file = /usr/local/anaconda3/envs/p3/myApp.py
callable = app
http-socket = 0.0.0.0:5050
virtualenv = /usr/local/anaconda3/envs/p3

在 Supervisor 中设置服务,然后一切正常...

PS。如果你在 root 环境中构建 uwsgi,工作目录应该是/usr/local/anaconda3 。

关于python-3.x - uwsgi无法从supervisord启动,但在命令行中工作正常,为什么?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/43762754/

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