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Le 15/05/2012 11:14, Shashi Kanth Boddula a écrit :
> Essex on Ubuntu 12.04.
>
> I am seeing these messages in noa-api.log file, and the nova is not 
> functional in dashboard. I believe the problem is with rabbitmq, but i 
> don't know how to solve this situation.
>
>
> 2012-05-15 14:20:11 ERROR nova.rpc.common 
> [req-1d70ea22-fb6e-4be8-84f5-54cfd78698ac 
> 0c1bd987f8b84088983e17645067c225 488ef90f59fd4bf68fc78f7086556af2] 
> AMQP server on localhost:5672 is unreachable: Socket closed. Trying 
> again in 30 seconds.
> 2012-05-15 14:20:11 TRACE nova.rpc.common Traceback (most recent call 
> last):
> 2012-05-15 14:20:11 TRACE nova.rpc.common   File 
> "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 446, 
> in reconnect
> 2012-05-15 14:20:11 TRACE nova.rpc.common     self._connect()
> 2012-05-15 14:20:11 TRACE nova.rpc.common   File 
> "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 423, 
> in _connect
> 2012-05-15 14:20:11 TRACE nova.rpc.common     self.connection.connect()
> 2012-05-15 14:20:11 TRACE nova.rpc.common   File 
> "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 154, in 
> connect
> 2012-05-15 14:20:11 TRACE nova.rpc.common     return self.connection
> 2012-05-15 14:20:11 TRACE nova.rpc.common   File 
> "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 560, in 
> connection
> 2012-05-15 14:20:11 TRACE nova.rpc.common     self._connection = 
> self._establish_connection()
> 2012-05-15 14:20:11 TRACE nova.rpc.common   File 
> "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 521, in 
> _establish_connection
> 2012-05-15 14:20:11 TRACE nova.rpc.common     conn = 
> self.transport.establish_connection()
> 2012-05-15 14:20:11 TRACE nova.rpc.common   File 
> "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 
> 255, in establish_connection
> 2012-05-15 14:20:11 TRACE nova.rpc.common     
> connect_timeout=conninfo.connect_timeout)
> 2012-05-15 14:20:11 TRACE nova.rpc.common   File 
> "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 
> 52, in __init__
> 2012-05-15 14:20:11 TRACE nova.rpc.common     super(Connection, 
> self).__init__(*args, **kwargs)
> 2012-05-15 14:20:11 TRACE nova.rpc.common   File 
> "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/connection.py", 
> line 144, in __init__
> 2012-05-15 14:20:11 TRACE nova.rpc.common     (10, 30), # tune
> 2012-05-15 14:20:11 TRACE nova.rpc.common   File 
> "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/abstract_channel.py", 
> line 95, in wait
> 2012-05-15 14:20:11 TRACE nova.rpc.common     self.channel_id, 
> allowed_methods)
> 2012-05-15 14:20:11 TRACE nova.rpc.common   File 
> "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/connection.py", 
> line 202, in _wait_method
> 2012-05-15 14:20:11 TRACE nova.rpc.common     
> self.method_reader.read_method()
> 2012-05-15 14:20:11 TRACE nova.rpc.common   File 
> "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/method_framing.py", 
> line 221, in read_method
> 2012-05-15 14:20:11 TRACE nova.rpc.common     raise m
> 2012-05-15 14:20:11 TRACE nova.rpc.common IOError: Socket closed
> 2012-05-15 14:20:11 TRACE nova.rpc.common
>
> # service rabbitmq-server status
> Status of node rabbit at openstack ...
> [{pid,2137},
>  {running_applications,[{rabbit,"RabbitMQ","2.7.1"},
>                         {os_mon,"CPO  CXC 138 46","2.2.7"},
>                         {sasl,"SASL  CXC 138 11","2.1.10"},
>                         {mnesia,"MNESIA  CXC 138 12","4.5"},
>                         {stdlib,"ERTS  CXC 138 10","1.17.5"},
>                         {kernel,"ERTS  CXC 138 10","2.14.5"}]},
>  {os,{unix,linux}},
>  {erlang_version,"Erlang R14B04 (erts-5.8.5) [source] [64-bit] 
> [smp:24:24] [rq:24] [async-threads:30] [kernel-poll:true]\n"},
>  {memory,[{total,26413240},
>           {processes,10154960},
>           {processes_used,10134760},
>           {system,16258280},
>           {atom,1124441},
>           {atom_used,1120341},
>           {binary,69304},
>           {code,11134417},
>           {ets,742384}]},
>  {vm_memory_high_watermark,0.39999999997628105},
>  {vm_memory_limit,13491309772}]
> ...done.
>
>
>
>
> -- 
> Thanks & Regards,
> Shashi Kanth
>
>
>
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Nova connects to RabbitMQ through the defaults values  ( localhost:5672) 
and credentials (guest)
Check for the address of your rabbitMQ in the config file 
(/etc/rabbitmq/rabbitMQ.config)

and do this
nano /etc/rabbitmq/rabbitmq.config
[{rabbit, [{tcp_listeners, [{"127.0.0.1",5672}] }] } ]. #Paste this line
#Exit and SAVE
service start rabbitmq-server

This certainly will make your rabbitMQ talk to Nova. otherwise there is 
something wrong with your nova
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