twisted - scrapy中的端口错误

Question

我设计了一个爬虫，里面会有两个蜘蛛。我用scrapy设计了这些。
这些蜘蛛将通过从数据库中获取数据来独立运行。

我们正在使用 react 器运行这些蜘蛛。正如我们所知，我们不能重复运行 react 器
我们提供了大约 500 多个链接到第二个要爬行的蜘蛛。
如果我们这样做，就会出现端口错误的问题。即scrapy仅使用单个端口

Error caught on signal handler: <bound method ?.start_listening of <scrapy.telnet.TelnetConsole instance at 0x0467B440>>
Traceback (most recent call last):
File "C:\Python27\lib\site-packages\twisted\internet\defer.py", line 1070, in _inlineCallbacks
result = g.send(result)
File "C:\Python27\lib\site-packages\scrapy-0.16.5-py2.7.egg\scrapy\core\engine.py", line 75, in start yield self.signals.send_catch_log_deferred(signal=signals.engine_started)
File "C:\Python27\lib\site-packages\scrapy-0.16.5-py2.7.egg\scrapy\signalmanager.py", line 23, in send_catch_log_deferred
return signal.send_catch_log_deferred(*a, **kw)
File "C:\Python27\lib\site-packages\scrapy-0.16.5-py2.7.egg\scrapy\utils\signal.py", line 53, in send_catch_log_deferred
*arguments, **named)
--- <exception caught here> ---
File "C:\Python27\lib\site-packages\twisted\internet\defer.py", line 137, in maybeDeferred
result = f(*args, **kw)
File "C:\Python27\lib\site-packages\scrapy-0.16.5-py2.7.egg\scrapy\xlib\pydispatch\robustapply.py", line 47, in robustApply
return receiver(*arguments, **named)
File "C:\Python27\lib\site-packages\scrapy-0.16.5-py2.7.egg\scrapy\telnet.py", line 47, in start_listening
self.port = listen_tcp(self.portrange, self.host, self)
File "C:\Python27\lib\site-packages\scrapy-0.16.5-py2.7.egg\scrapy\utils\reactor.py", line 14, in listen_tcp
return reactor.listenTCP(x, factory, interface=host)
File "C:\Python27\lib\site-packages\twisted\internet\posixbase.py", line 489, in listenTCP
p.startListening()
File "C:\Python27\lib\site-packages\twisted\internet\tcp.py", line 980, in startListening
raise CannotListenError(self.interface, self.port, le)
twisted.internet.error.CannotListenError: Couldn't listen on 0.0.0.0:6073: [Errno 10048] Only one usage of each socket address (protocol/network address/port) is normally permitted.

那么这里出现的问题是什么？？那么解决这种情况的最佳方法是什么？？请帮助...

ps:我在设置中增加了端口数，但它始终以 6073 作为默认值。

Answer 1

最简单的方法是通过将其添加到您的 settings.py 来禁用 Telnet 控制台。 :

EXTENSIONS = {
   'scrapy.telnet.TelnetConsole': None
}

另见 http://doc.scrapy.org/en/latest/topics/settings.html#extensions获取默认启用的扩展列表。