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apache - "OSError: [Errno 88] Socket operation on non-socket"by 触发器

转载 作者：行者123 更新时间：2023-12-03 15:57:40 30 4
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尝试将 Flask 应用程序部署到我的 LAMP 服务器时，我收到了来自 flipflop 的错误。 ，一个 FastCGI/WSGI 网关，它使我的应用程序能够使用 FastCGI 协议(protocol)。

~/minimal/run.py 

from flask import Flask
from flipflop import WSGIServer

app = Flask(__name__)

@app.route('/')
def hello_world():
    return 'hello, world'

if __name__ == '__main__':
    WSGIServer(app).run()

Apache配置文件的相关部分，即/etc/httpd/conf/httpd.conf:

<VirtualHost *:80>
    ScriptAlias / /home/apps/minimal/run.py
    ErrorLog /var/log/httpd/error_log
</VirtualHost>

Apache/2.2.15 的错误报告:

[apps@kernod0 ~]$ sudo head -n 20 /var/log/httpd/error_log
[sudo] password for apps: 
[Wed Aug 16 16:39:16 2017] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Wed Aug 16 16:39:16 2017] [notice] Digest: generating secret for digest authentication ...
[Wed Aug 16 16:39:16 2017] [notice] Digest: done
[Wed Aug 16 16:39:16 2017] [notice] Apache/2.2.15 (Unix) DAV/2 mod_fcgid/2.3.9 configured -- resuming normal operations
[Wed Aug 16 16:39:16 2017] [error] [client 100.116.224.219] Traceback (most recent call last):
[Wed Aug 16 16:39:16 2017] [error] [client 100.116.224.219]   File "/home/apps/minimal/run.py", line 12, in <module>
[Wed Aug 16 16:39:16 2017] [error] [client 100.116.224.219]     WSGIServer(app).run()
[Wed Aug 16 16:39:16 2017] [error] [client 100.116.224.219]   File "/home/apps/minimal/flask/lib/python2.6/site-packages/flipflop.py", line 938, in run
[Wed Aug 16 16:39:16 2017] [error] [client 100.116.224.219]     sock.getpeername()
[Wed Aug 16 16:39:16 2017] [error] [client 100.116.224.219] socket.error: [Errno 88] Socket operation on non-socket
[Wed Aug 16 16:39:16 2017] [error] [client 100.116.224.219] Premature end of script headers: run.py
[Wed Aug 16 16:39:17 2017] [error] [client 100.116.226.253] Traceback (most recent call last):
[Wed Aug 16 16:39:17 2017] [error] [client 100.116.226.253]   File "/home/apps/minimal/run.py", line 12, in <module>
[Wed Aug 16 16:39:17 2017] [error] [client 100.116.226.253]     WSGIServer(app).run()
[Wed Aug 16 16:39:17 2017] [error] [client 100.116.226.253]   File "/home/apps/minimal/flask/lib/python2.6/site-packages/flipflop.py", line 938, in run
[Wed Aug 16 16:39:17 2017] [error] [client 100.116.226.253]     sock.getpeername()
[Wed Aug 16 16:39:17 2017] [error] [client 100.116.226.253] socket.error: [Errno 88] Socket operation on non-socket
[Wed Aug 16 16:39:17 2017] [error] [client 100.116.226.253] Premature end of script headers: run.py
[Wed Aug 16 16:39:17 2017] [error] [client 100.116.226.205] Traceback (most recent call last):
[Wed Aug 16 16:39:17 2017] [error] [client 100.116.226.205]   File "/home/apps/minimal/run.py", line 12, in <module>

另外，即使不使用flipflop，还是不行:

~/minimal/run.py 

from flask import Flask

app = Flask(__name__)

@app.route('/')
def hello_world():
    return 'hello, world'

if __name__ == '__main__':
    app.run()

错误输出:

[apps@kernod0 ~]$ sudo cat /var/log/httpd/error_log
[Wed Aug 16 20:47:24 2017] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Wed Aug 16 20:47:24 2017] [notice] Digest: generating secret for digest authentication ...
[Wed Aug 16 20:47:24 2017] [notice] Digest: done
[Wed Aug 16 20:47:24 2017] [notice] Apache/2.2.15 (Unix) DAV/2 mod_fcgid/2.3.9 configured -- resuming normal operations
[Wed Aug 16 20:47:33 2017] [error] [client 100.116.226.182]  * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] Traceback (most recent call last):
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]   File "/home/apps/minimal/run.py", line 11, in <module>
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]     
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] app.run()
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]   File "/home/apps/minimal/flask/lib/python2.6/site-packages/flask/app.py", line 841, in run
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]     
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] run_simple(host, port, self, **options)
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]   File "/home/apps/minimal/flask/lib/python2.6/site-packages/werkzeug/serving.py", line 739, in run_simple
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]     
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] inner()
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]   File "/home/apps/minimal/flask/lib/python2.6/site-packages/werkzeug/serving.py", line 699, in inner
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]     
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] fd=fd)
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]   File "/home/apps/minimal/flask/lib/python2.6/site-packages/werkzeug/serving.py", line 593, in make_server
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]     
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] passthrough_errors, ssl_context, fd=fd)
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]   File "/home/apps/minimal/flask/lib/python2.6/site-packages/werkzeug/serving.py", line 504, in __init__
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]     
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] HTTPServer.__init__(self, (host, int(port)), handler)
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]   File "/usr/lib64/python2.6/SocketServer.py", line 412, in __init__
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]     
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] self.server_bind()
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]   File "/usr/lib64/python2.6/BaseHTTPServer.py", line 108, in server_bind
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]     
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] SocketServer.TCPServer.server_bind(self)
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]   File "/usr/lib64/python2.6/SocketServer.py", line 423, in server_bind
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]     
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] self.socket.bind(self.server_address)
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190]   File "<string>", line 1, in bind
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] socket
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] .
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] error
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] : 
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] [Errno 98] Address already in use
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] 
[Wed Aug 16 20:47:37 2017] [error] [client 100.116.226.190] Premature end of script headers: run.py
[Wed Aug 16 20:48:33 2017] [warn] [client 100.116.226.182] Timeout waiting for output from CGI script /home/apps/minimal/run.py
[Wed Aug 16 20:48:33 2017] [error] [client 100.116.226.182] Script timed out before returning headers: run.py
[Wed Aug 16 20:49:33 2017] [warn] [client 100.116.226.182] Timeout waiting for output from CGI script /home/apps/minimal/run.py

最佳答案

我已经成功运行了您的示例，但需要进行一些调整才能使其正常运行。
您可能需要更改系统上的路径，因为从您的日志看来，您正在使用运行 python2.6 的系统和仍然使用 的旧 apache 版本>httpd 文件。
如果可能的话，我会建议你升级你的环境。

这是一个分步的工作解决方案:

1.安装virtualenvwrapper:

sudo -EH pip2 install virtualenvwrapper

2.激活它:

source /usr/local/bin/virtualenvwrapper.sh

3.创建虚拟环境:

mkvirtualenv minimal

4.安装flask和flup:

pip install -U flask flup

flipflop 对我不起作用，但正如它的自述文件所述

This module is a simplified fork of flup, written by Allan Saddi. It only has the FastCGI part of the original module.

这样您就可以安全地使用它了。

5.安装apache2:

sudo apt-get install apache2

6.安装libapache2-mod-fastcgi:

sudo apt-get install libapache2-mod-fastcgi

7.创建/var/www/minimal/run.py:

from flask import Flask

app = Flask(__name__)

@app.route('/')
def hello_world():
    return 'hello, world'

8.创建/var/www/minimal/minimal.fcgi:

#!/usr/bin/python
import sys
import logging
logging.basicConfig(stream=sys.stderr)

activate_this = '/home/some_user/.virtualenvs/minimal/bin/activate_this.py'
execfile(activate_this, dict(__file__=activate_this))

sys.path.insert(0,"/var/www/minimal/")

from flup.server.fcgi import WSGIServer
from run import app

if __name__ == '__main__':
    WSGIServer(app).run()

9.使 minimal.fcgi 可执行:

sudo chmod +x minimal.fcgi

10.创建 minimal.conf 文件(在我的服务器上的 /etc/apache2/sites-available 中):

FastCgiServer /var/www/minimal/minimal.fcgi -idle-timeout 300 -processes 5

<VirtualHost *:80>
    ServerName YOUR_IP_ADDRESS
    DocumentRoot /var/www/minimal/

    AddHandler fastcgi-script fcgi
    ScriptAlias / /var/www/minimal/minimal.fcgi/

    <Location />
        SetHandler fastcgi-script
    </Location>
</VirtualHost>

11.启用新站点:

sudo a2ensite minimal.conf

12.将 /var/www/ 所有权更改为 www-data 用户:

sudo chown -R www-data:www-data /var/www/

13.重启apache2:

sudo /etc/init.d/apache2 restart

瞧! :)

如果您访问您的服务器地址，您应该会在浏览器中看到 hello, world: enter image description here

同样在重启apache时你可以在apache的error.log中查看FastCGI:

[Thu Aug 24 16:33:09.354544 2017] [mpm_event:notice] [pid 17375:tid 139752788969344] AH00491: caught SIGTERM, shutting down
[Thu Aug 24 16:33:10.414829 2017] [mpm_event:notice] [pid 17548:tid 139700962228096] AH00489: Apache/2.4.18 (Ubuntu) mod_fastcgi/mod_fastcgi-SNAP-0910052141 configured -- resuming normal operations
[Thu Aug 24 16:33:10.415033 2017] [core:notice] [pid 17548:tid 139700962228096] AH00094: Command line: '/usr/sbin/apache2'
[Thu Aug 24 16:33:10.415651 2017] [:notice] [pid 17551:tid 139700962228096] FastCGI: process manager initialized (pid 17551)
[Thu Aug 24 16:33:10.416135 2017] [:warn] [pid 17551:tid 139700962228096] FastCGI: server "/var/www/minimal/minimal.fcgi" started (pid 17556)
[Thu Aug 24 16:33:11.416571 2017] [:warn] [pid 17551:tid 139700962228096] FastCGI: server "/var/www/minimal/minimal.fcgi" started (pid 17618)
[Thu Aug 24 16:33:12.422058 2017] [:warn] [pid 17551:tid 139700962228096] FastCGI: server "/var/www/minimal/minimal.fcgi" started (pid 17643)
[Thu Aug 24 16:33:13.422763 2017] [:warn] [pid 17551:tid 139700962228096] FastCGI: server "/var/www/minimal/minimal.fcgi" started (pid 17651)
[Thu Aug 24 16:33:14.423536 2017] [:warn] [pid 17551:tid 139700962228096] FastCGI: server "/var/www/minimal/minimal.fcgi" started (pid 17659)

关于apache - "OSError: [Errno 88] Socket operation on non-socket"by 触发器，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/45703959/

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