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apache - 触发器的“OSError: [Errno 88] Socket operation on non-socket”

尝试将Flask应用程序部署到我的LAMP服务器时，我从flipflop(一个FastCGI/WSGI网关)收到一个错误，该错误使我的应用程序能够使用FastCGI协议(protocol)。


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，它也仍然不起作用:


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，但是需要进行一些调整才能使其正常工作。
您可能需要更改系统上的路径，因为从日志看来，您正在使用的系统运行的是python2.6和较旧的apache版本，该版本仍使用httpd文件。
如果可能的话，我建议您升级环境。

这是一个分步工作的解决方案:

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，但是它是自述文件



因此您可以放心使用它。

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! :)

如果您访问服务器地址，则应该在浏览器中看到hello, world:
apache - 触发器的“OSError: [Errno 88] Socket operation on non-socket”-LMLPHP

另外，在重新启动apache时，您可以从apache的FastCGI开始查看error.log:
[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 - 触发器的“OSError: [Errno 88] Socket operation on non-socket”，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/45703959/

10-08 23:16
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