Nova version : nova-api 2011.3~d3~20110630.1238-0ubuntu0ppa1~natty1 RabbitMQ : rabbitmq-server 2.3.1-1ubuntu1

root@nova:/var/log/nova# euca-run-instances -t m1.tiny -k hugo ami-003 UnknownError: An unknown error has occurred. Please try your request again.

========nova-api.log======== 2011-07-01 14:50:32,166 DEBUG nova.rpc [-] Making asynchronous cast on scheduler... from (pid=2750) cast /usr/lib/pymodules/python2.7/nova/rpc.py:555 2011-07-01 14:50:32,167 ERROR nova.api [TTM-QDNQPV0O2B9Y2AIB hugo pro1] Unexpected error raised: (406, u"PRECONDITION_FAILED - cannot redeclare exchange 'nova' in vhost '/' with different type, durable, internal or autodelete value", (40, 10), 'Channel.exchange_declare') (nova.api): TRACE: Traceback (most recent call last): (nova.api): TRACE: File "/usr/lib/pymodules/python2.7/nova/api/ec2/__init__.py", line 320, in __call__ (nova.api): TRACE: result = api_request.invoke(context) (nova.api): TRACE: File "/usr/lib/pymodules/python2.7/nova/api/ec2/apirequest.py", line 78, in invoke (nova.api): TRACE: result = method(context, **args) (nova.api): TRACE: File "/usr/lib/pymodules/python2.7/nova/api/ec2/cloud.py", line 956, in run_instances (nova.api): TRACE: block_device_mapping=kwargs.get('block_device_mapping', {})) (nova.api): TRACE: File "/usr/lib/pymodules/python2.7/nova/compute/api.py", line 420, in create (nova.api): TRACE: instance_id=instance_id) (nova.api): TRACE: File "/usr/lib/pymodules/python2.7/nova/compute/api.py", line 346, in _ask_scheduler_to_create_instance (nova.api): TRACE: "injected_files": injected_files}}) (nova.api): TRACE: File "/usr/lib/pymodules/python2.7/nova/rpc.py", line 558, in cast (nova.api): TRACE: publisher = TopicPublisher(connection=conn, topic=topic) (nova.api): TRACE: File "/usr/lib/pymodules/python2.7/nova/rpc.py", line 352, in __init__ (nova.api): TRACE: super(TopicPublisher, self).__init__(connection=connection) (nova.api): TRACE: File "/usr/lib/pymodules/python2.7/carrot/messaging.py", line 657, in __init__ (nova.api): TRACE: self.declare() (nova.api): TRACE: File "/usr/lib/pymodules/python2.7/carrot/messaging.py", line 669, in declare (nova.api): TRACE: auto_delete=self.auto_delete) (nova.api): TRACE: File "/usr/lib/pymodules/python2.7/carrot/backends/pyamqplib.py", line 256, in exchange_declare (nova.api): TRACE: auto_delete=auto_delete) (nova.api): TRACE: File "/usr/lib/pymodules/python2.7/amqplib/client_0_8/channel.py", line 843, in exchange_declare (nova.api): TRACE: (40, 11), # Channel.exchange_declare_ok (nova.api): TRACE: File "/usr/lib/pymodules/python2.7/amqplib/client_0_8/abstract_channel.py", line 105, in wait (nova.api): TRACE: return amqp_method(self, args) (nova.api): TRACE: File "/usr/lib/pymodules/python2.7/amqplib/client_0_8/channel.py", line 273, in _close (nova.api): TRACE: (class_id, method_id)) (nova.api): TRACE: AMQPChannelException: (406, u"PRECONDITION_FAILED - cannot redeclare exchange 'nova' in vhost '/' with different type, durable, internal or autodelet e value", (40, 10), 'Channel.exchange_declare') (nova.api): TRACE: 2011-07-01 14:50:32,168 ERROR nova.api [TTM-QDNQPV0O2B9Y2AIB hugo pro1] Environment: {"HTTP_AUTHORIZATION": "AWS 1874a406-b1ff-4a8f-9684-d46810a70159:pro1:n+pE0RgAgx6TP yrxm0K2uxnT3jQ=", "CONTENT_TYPE": "application/x-www-form-urlencoded; charset=UTF-8", "SCRIPT_NAME": "/services/Cloud", "REQUEST_METHOD": "POST", "HTTP_HOST": "172.16.4 .184:8773", "PATH_INFO": "/", "SERVER_PROTOCOL": "HTTP/1.0", "HTTP_USER_AGENT": "Boto/1.9b (linux2)", "SERVER_NAME": "172.16.4.184", "REMOTE_ADDR": "172.16.4.184", "HTT P_DATE": "Fri, 01 ... (more)