我正在尝试将一个新的 nova-compute 节点(KUubuntu 12.04)添加到我在 Ubuntu 12.04 LTS 上运行的单节点 OpenStack(Essex 版本)安装中。但是,我收到以下错误:-
2012-06-22 14:05:12 INFO nova.rpc.common [-] Reconnecting to AMQP server on localhost:5672
2012-06-22 14:05:12 ERROR nova.rpc.common [-] AMQP server on localhost:5672 is unreachable: [Errno 111] ECONNREFUSED. Trying again in 27 seconds.
2012-06-22 14:05:12 TRACE nova.rpc.common Traceback (most recent call last):
2012-06-22 14:05:12 TRACE nova.rpc.common File "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 446, in reconnect
2012-06-22 14:05:12 TRACE nova.rpc.common self._connect()
2012-06-22 14:05:12 TRACE nova.rpc.common File "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 423, in _connect
2012-06-22 14:05:12 TRACE nova.rpc.common self.connection.connect()
2012-06-22 14:05:12 TRACE nova.rpc.common File "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 154, in connect
2012-06-22 14:05:12 TRACE nova.rpc.common return self.connection
2012-06-22 14:05:12 TRACE nova.rpc.common File "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 560, in connection
2012-06-22 14:05:12 TRACE nova.rpc.common self._connection = self._establish_connection()
2012-06-22 14:05:12 TRACE nova.rpc.common File "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 521, in _establish_connection
2012-06-22 14:05:12 TRACE nova.rpc.common conn = self.transport.establish_connection()
2012-06-22 14:05:12 TRACE nova.rpc.common File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 255, in establish_connection
2012-06-22 14:05:12 TRACE nova.rpc.common connect_timeout=conninfo.connect_timeout)
2012-06-22 14:05:12 TRACE nova.rpc.common File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 52, in __init__
2012-06-22 14:05:12 TRACE nova.rpc.common super(Connection, self).__init__(*args, **kwargs)
2012-06-22 14:05:12 TRACE nova.rpc.common File "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/connection.py", line 129, in __init__
2012-06-22 14:05:12 TRACE nova.rpc.common self.transport = create_transport(host, connect_timeout, ssl)
2012-06-22 14:05:12 TRACE nova.rpc.common File "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/transport.py", line 281, in create_transport
2012-06-22 14:05:12 TRACE nova.rpc.common return TCPTransport(host, connect_timeout)
2012-06-22 14:05:12 TRACE nova.rpc.common File "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/transport.py", line 85, in __init__
2012-06-22 14:05:12 TRACE nova.rpc.common raise socket.error, msg
2012-06-22 14:05:12 TRACE nova.rpc.common error: [Errno 111] ECONNREFUSED
2012-06-22 14:05:12 TRACE nova.rpc.common
错误的原因是什么以及如何解决此错误?