在面板上建立新实例，报如上错误，是由于队列服务的问题
在/var/log/nova下查看日志，发现如下报错
grep -i error nova-*.log
nova-conductor.log:2015-04-15 18:42:43.778 3844 ssaging._drivers.impl_rabbit [-] Failed to consume message from queue: (0, 0): (320) CONNECTION_FORCED - broker forced connection closure with reason 'shutdown'
nova-conductor.log:2015-04-15 18:42:43.778 3844 ssaging._drivers.impl_rabbit (class_id, method_id), ConnectionError)
nova-conductor.log:2015-04-15 18:42:43.779 3842 ssaging._drivers.impl_rabbit [-] Failed to consume message from queue: (0, 0): (320) CONNECTION_FORCED - broker forced connection closure with reason 'shutdown'
nova-conductor.log:2015-04-15 18:42:43.779 3842 ssaging._drivers.impl_rabbit (class_id, method_id), ConnectionError)
nova-conductor.log:2015-04-15 18:42:43.773 3845 ssaging._drivers.impl_rabbit [-] Failed to consume message from queue: (0, 0): (320) CONNECTION_FORCED - broker forced connection closure with reason 'shutdown'
nova-conductor.log:2015-04-15 18:42:43.773 3845 ssaging._drivers.impl_rabbit (class_id, method_id), ConnectionError)
nova-conductor.log:2015-04-15 18:42:44.857 3843 ssaging._drivers.impl_rabbit [-] AMQP rver on 10.143.132.171:5672 is unreachable: [Errno 111] ECONNREFUSED. Trying again in 1 conds.
nova-conductor.log:2015-04-15 18:42:44.860 3844 ssaging._drivers.impl_rabbit [-] AMQP rver on 10.143.132.171:5672 is unreachable: [Errno 111] ECONNREFUSED. Trying again in 1 conds.
nova-conductor.log:2015-04-15 18:42:44.862 3845 ssaging._drivers.impl
_rabbit [-] AMQP rver on 10.143.132.171:5672 is unreachable: [Errno 111] ECONNREFUSED. Trying again in 1 conds.
nova-conductor.log:2015-04-15 18:42:44.878 3842 ssaging._drivers.impl_rabbit [-] AMQP rver on 10.143.132.171:5672 is unreachable: [Errno 111] ECONNREFUSED. Trying again in 1 conds.
nova-conductor.log:2015-04-15 18:42:48.491 3843 ssaging._drivers.impl_rabbit [-] Failed to publish message to topic 'reply_a7a1551a676a4e0a99d049fd9f1e498c': [Errno 32] Broken pipe
nova-conductor.log:2015-04-15 18:42:48.491 3843 ssaging._drivers.impl_rabbit error: [Errno 32] Broken pipe
nova-conductor.log:2015-04-15 18:42:57.491 3844 ssaging._drivers.impl_rabbit [-] Failed to publish message to topic 'reply_a7a1551a676a4e0a99d049fd9f1e498c': [Errno 32] Broken pipe
nova-conductor.log:2015-04-15 18:42:57.491 3844 ssaging._drivers.impl_rabbit error: [Errno 32] Broken pipe
nova-conductor.log:2015-04-15 18:42:59.754 3845 ssaging._drivers.impl_rabbit [-] Failed to publish message to topic 'reply_a7a1551a676a4e0a99d049fd9f1e498c': [Errno 32] Broken pipe
nova-conductor.log:2015-04-15 18:42:59.754 3845 ssaging._drivers.impl_rabbit error: [Errno 32] Broken pipe
nova-conductor.log:2015-04-15 18:43:00.773 3842 ssaging._drivers.impl_rabbit [-] Failed to publish message to topic 'reply_a7a1551a676a4e0a99d049fd9f1e498c': [Errno 32] Broken pipe
nova-conductor.log:2015-04-15 18:43:00.773 3842 ssaging._drivers.impl_rabbit error: [Errno 32] Broken pipe
nova-consoleauth.log:2015-01-12 17:48:59.883 1266 ssaging._drivers.i
mpl_rabbit [req-38c5db52-362e-4cfc-a017-45ccc9c44d17 ] AMQP rver on 10.143.132.171:5672 is unreachable: [Errno 111] ECONNREFUSED. Trying again in 1 conds.
nova-consoleauth.log:2015-01-12 22:36:49.181 1264 ssaging._drivers.impl_rabbit [req-a41a32bc-106c-42ab-8cd2-913b5729cee9 ] AMQP rver on 10.143.132.171:5672 is unreachable: [Errno 111] ECONNREFUSED. Trying again in 1 conds.
nova-consoleauth.log:2015-01-14 19:16:17.876 1266 ssaging._drivers.impl_rabbit [req-79421a6a-1396-404c-807e-f074319393b7 ] AMQP rver on 10.143.132.171:5672 is unreachable: [Errno 111] ECONNREFUSED. Trying again in 1 conds.
nova-consoleauth.log:2015-01-14 19:28:58.705 1257 ssaging._drivers.impl_rabbit [req-bfb8e66c-efa8-44b8-bb18-0444b3667a3a ] AMQP rver on 10.143.132.171:5672 is unreachable: [Errno 111] ECONNREFUSED. Tr
ying again in 1 conds.
nova-consoleauth.log:2015-04-15 18:42:43.772 1263 ssaging._drivers.impl_rabbit [-] Failed to consume message from queue: (0, 0): (320) CONNECTION_FORCED - broker forced connection closure with reason 'shutdown'
nova-consoleauth.log:2015-04-15 18:42:43.772 1263 ssaging._drivers.impl_rabbit (class_id, method_id), ConnectionError)
