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“OSError：[Errno 88]非套接字上的套接字操作”通过触发器

[英]“OSError: [Errno 88] Socket operation on non-socket” by flipflop

 原文  2017-08-16 01:54:40  7   4    apache/ sockets/ flask/ fastcgi/ mod-fcgid

问题描述

当我尝试将Flask应用程序部署到我的LAMP服务器时，我从flipflop收到错误，这是一个FastCGI / WSGI网关，它使我的应用程序能够说出FastCGI协议。

〜/最小/ 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>

此外，即使不使用flipflop ，它仍然不起作用：

〜/最小/ 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

4 个解决方案

解决方案1
 5  2017-08-24 16:42:23

我已经设法运行你的例子，但是有一些调整使它工作。
您可能需要更改系统上的路径，因为从您的日志中可能看起来您正在使用运行python2.6系统和仍使用httpd文件的较旧的apache版本。
如果可能，我会建议您升级您的环境。

这是一个循序渐进的工作解决方案：

1.安装virtualenvwrapper ： 

sudo -EH pip2 install virtualenvwrapper

2.Activte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，但因为它是README状态

这个模块是一个简化的flup分支，由Allan Saddi编写。 它只有原始模块的FastCGI部分。

所以你可以安全地使用它。

5. 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.Make minimal.fcgi可执行文件： 

sudo chmod +x minimal.fcgi

10.Create minimal.conf文件（ /etc/apache2/sites-available我的服务器上）： 

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.启用新网站： 

sudo a2ensite minimal.conf

12.更改/var/www/所有权到www-data用户： 

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

13.Restart apache2 ： 

sudo /etc/init.d/apache2 restart

瞧！ :)

如果您访问服务器地址，您应该在浏览器中看到hello, world ： 在此输入图像描述

另外，当重新启动apache您可以在apache的error.log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)

解决方案2
 1  2017-08-16 06:21:07

您无法从终端运行fastcgi脚本。 该脚本应该由Apache执行。 通常，您在Apache配置文件的ScriptAlias指令中配置它。

解决方案3
 1  2017-08-21 06:45:37

一般来说，你应该使用mod_fastcgi和配置simillar来： 

<VirtualHost *:8091>
  ServerName helloworld.local
  DocumentRoot /home/fe/work/flipflop
  FastCgiServer /home/fe/work/flipflop/run.py
  ScriptAlias / /home/fe/work/flipflop/run.py
    <Location />
      Options none
    </Location>
</VirtualHost>

所以它会使你的脚本运行为FastCgi，但我不熟悉flipflop并且不能使它工作。

但是，如果您不限于flipflop您可以使用uwsgi运行您的应用程序， mod_wsgi使用Apache运行它（在Flask文档中阅读更多详细信息）或使用Flask-Script runserver命令在调试服务器中运行您的应用程序（请参阅Flask中的示例） -Script文档

解决方案4
 1  2017-08-24 14:49:32

首先，看起来你已经在端口5000上运行/监听了一些应用程序。你可能想要找到sudo sockstat |grep 5000 ，然后配置Apache，或者使用localhost:5000 sudo sockstat |grep 5000进程/服务。

其次，看起来您的虚拟主机未考虑/未完全配置。

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