OpenStack Quantum 日誌顯示 <server> 上的 AMQP 伺服器：5672 無法訪問：套接字已關閉

在 OpenStack Folsom 安裝中，我在 /var/log/quantum/server.log 的量子伺服器日誌顯示：

2013-02-06 11:51:38     INFO [quantum.openstack.common.rpc.common] Reconnecting to AMQP server on 10.0.0.1:5672
2013-02-06 11:51:38    DEBUG [amqplib] Start from server, version: 8.0, properties: {u'information': u'Licensed under the MPL. See http://www.rabbitmq.com/', u'product': u'RabbitMQ', u'copyright': u'Copyright (C) 2007-2011 VMware, Inc.', u'capabilities': {}, u'platform': u'Erlang/OTP', u'version': u'2.7.1'}, mechanisms: [u'PLAIN', u'AMQPLAIN'], locales: [u'en_US']
2013-02-06 11:51:41    ERROR [quantum.openstack.common.rpc.common] AMQP server on 10.0.0.1:5672 is unreachable: Socket closed. 
Trying again in 30 seconds.
Traceback (most recent call last):
 File "/usr/lib/python2.7/dist-packages/quantum/openstack/common/rpc/impl_kombu.py", line 469, in reconnect
   self._connect()
 File "/usr/lib/python2.7/dist-packages/quantum/openstack/common/rpc/impl_kombu.py", line 446, in _connect
   self.connection.connect()
 File "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 154, in connect
   return self.connection
 File "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 560, in connection
   self._connection = self._establish_connection()
 File "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 521, in _establish_connection
   conn = self.transport.establish_connection()
 File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 255, in establish_connection
   connect_timeout=conninfo.connect_timeout)
 File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 52, in __init__
   super(Connection, self).__init__(*args, **kwargs)
 File "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/connection.py", line 144, in __init__
   (10, 30), # tune
 File "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/abstract_channel.py", line 95, in wait
   self.channel_id, allowed_methods)
 File "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/connection.py", line 202, in _wait_method
   self.method_reader.read_method()
 File "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/method_framing.py", line 221, in read_method
   raise m
IOError: Socket closed

什麼可能導致此錯誤？

本例中的 AMQP 伺服器指的是 RabbitMQ。

簡單的答案是量子伺服器無法登錄rabbitmq。由於您沒有收到“ECONNREFUSED”錯誤，因此伺服器是可聯繫的，這意味著很可能有一個 RabbitMQ 伺服器在該 IP 上執行。

確保您的 RabbitMQ 密碼正確。例如，福爾瑟姆指南說：

rabbitmqctl change_password guest password

…意思是rabbitmq使用者是’guest’，而rabbitmq密碼是’password’。

這必須與 /etc/quantum/quantum.conf 中列出的使用者名和密碼匹配

# IP address of the RabbitMQ installation
rabbit_host = 10.0.0.1
# Password of the RabbitMQ server
rabbit_password = password
# Port where RabbitMQ server is running/listening
# rabbit_port = 5672
# User ID used for RabbitMQ connections
# rabbit_userid = guest

（註釋掉的行是預設的）

引用自：https://serverfault.com/questions/475870