scrapy中的端口错误

Question

我设计了一个爬行器,其中将有两个蜘蛛.我使用scrapy设计了这些.
这些蜘蛛将通过从数据库中获取数据而独立运行.

我们使用反应器来运行这些蜘蛛.我们知道我们不能反复运行反应堆,
我们会给第二个爬行的蜘蛛提供500多个链接.如果我们这样做,我们就会遇到端口错误的问题.即scrapy只使用单一端口

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？请帮忙......

ps:我增加了设置中的端口数,但默认情况下总是占用6073.

Answer 1

最简单的方法是通过将以下内容添加到您的settings.py以下来禁用Telnet控制台 :

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

另请参阅http://doc.scrapy.org/en/latest/topics/settings.html#extensions以获取默认启用的扩展名列表.