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<p><strong>为什么我得到的AMQPConnectionError是Asyncore而不是BlockingConnection?</strong></p>
<p><s>如果只是“Asyncore在Windows中不起作用”,那么就这样吧,尽管我还没有找到任何禁止使用它的东西。</s>(这个问题与平台无关)为了便于迁移,我想使用Python2.7和Python3.4上都可用的异步库,Asyncore应该在这里起作用。</p>
<p>我将RabbitMQ 3.2.4与Python 2.7.6和pika 0.9.13一起使用。用户和管理运行级别没有什么区别。记录程序在代码中的存在或不存在与错误无关,但上面更新的警告消息除外。Linux(Ubuntu14.04)和Windows7中也出现了同样的错误,所以这不是平台问题。</p>
<p>因为使用BlockingConnection时pika的性能相当差,所以我想尝试使用Asyncore适配器。对于一个测试台的设置来说似乎很简单(我试着给它证书,但这不重要,如果不给的话,回调就会被终止。。。无论哪种方式都失败了。):</p>
<p>根据教程使用BlockingConnection-它可以工作,但吞吐量较低:</p>
<pre><code>connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
</code></pre>
<p>使用异步连接-我尝试过的所有变体都会立即失败:</p>
<pre><code>connection = pika.AsyncoreConnection(pika.ConnectionParameters(host='localhost'))
</code></pre>
<p>错误:</p>
<pre class="lang-none prettyprint-override"><code>WARNING:pika.connection:Could not connect, 0 attempts left
Traceback (most recent call last):
File "C:\workspace\send.py", line 8, in <module>
connection = pika.AsyncoreConnection(pika.ConnectionParameters(host='localhost'))
File "C:\Python27\lib\site-packages\pika\adapters\asyncore_connection.py", line 135, in __init__
stop_ioloop_on_close)
File "C:\Python27\lib\site-packages\pika\adapters\base_connection.py", line 62, in __init__
on_close_callback)
File "C:\Python27\lib\site-packages\pika\connection.py", line 590, in __init__
self.connect()
File "C:\Python27\lib\site-packages\pika\connection.py", line 707, in connect
self.callbacks.process(0, self.ON_CONNECTION_ERROR, self, self)
File "C:\Python27\lib\site-packages\pika\callback.py", line 61, in wrapper
return function(*tuple(args), **kwargs)
File "C:\Python27\lib\site-packages\pika\callback.py", line 92, in wrapper
return function(*args, **kwargs)
File "C:\Python27\lib\site-packages\pika\callback.py", line 232, in process
callback(*args, **keywords)
File "C:\Python27\lib\site-packages\pika\connection.py", line 1192, in _on_connection_error
raise exceptions.AMQPConnectionError(self.params.connection_attempts)
pika.exceptions.AMQPConnectionError: 1
</code></pre>