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nova-conductor error

According to this guide the nova conductor could not connect to rabbitmq .

nova-manage service list
Binary           Host                                 Zone             Status     State Updated_At
nova-cert        cloud                                internal         enabled    :-)   2013-05-13 11:09:51
nova-consoleauth cloud                                internal         enabled    :-)   2013-05-13 11:09:51
nova-scheduler   cloud                                internal         enabled    :-)   2013-05-13 11:09:51
nova-conductor   cloud                                internal         enabled    XXX   2013-05-13 10:40:16

/var/log/nova/nova-conductor.log show a lot of

2013-05-13 15:34:25.225 INFO nova.openstack.common.rpc.common [req-630ba185-4feb-479e-a794-2f3b6ac6fe33 None None] Reconnecting to AMQP server on localhost:5672
2013-05-13 15:34:28.229 ERROR nova.openstack.common.rpc.common [req-630ba185-4feb-479e-a794-2f3b6ac6fe33 None None] AMQP server on localhost:5672 is unreachable: Socket closed. Trying again in 30 seconds.
2013-05-13 15:34:58.258 INFO nova.openstack.common.rpc.common [req-630ba185-4feb-479e-a794-2f3b6ac6fe33 None None] Reconnecting to AMQP server on localhost:5672
2013-05-13 15:35:01.261 ERROR nova.openstack.common.rpc.common [req-630ba185-4feb-479e-a794-2f3b6ac6fe33 None None] AMQP server on localhost:5672 is unreachable: Socket closed. Trying again in 30 seconds.

/var/log/rabbitmq/rabbit@cloud.log

=INFO REPORT==== 13-May-2013::15:34:58 ===
accepted TCP connection on [::]:5672 from 127.0.0.1:33000

=INFO REPORT==== 13-May-2013::15:34:58 ===
starting TCP connection <0.958.0> from 127.0.0.1:33000

=ERROR REPORT==== 13-May-2013::15:35:01 ===
exception on TCP connection <0.958.0> from 127.0.0.1:33000
{channel0_error,starting,
                {amqp_error,access_refused,
                            "AMQPLAIN login refused: user 'guest' - invalid credentials",
                            'connection.start_ok'}}

=INFO REPORT==== 13-May-2013::15:35:01 ===
closing TCP connection <0.958.0> from 127.0.0.1:33000
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more explicit question

nova-conductor errorWhy can't Nova Conductor connect to rabbitmq?

According to this guide the nova conductor could not connect to rabbitmq .

nova-manage service list
Binary           Host                                 Zone             Status     State Updated_At
nova-cert        cloud                                internal         enabled    :-)   2013-05-13 11:09:51
nova-consoleauth cloud                                internal         enabled    :-)   2013-05-13 11:09:51
nova-scheduler   cloud                                internal         enabled    :-)   2013-05-13 11:09:51
nova-conductor   cloud                                internal         enabled    XXX   2013-05-13 10:40:16

/var/log/nova/nova-conductor.log show a lot of

2013-05-13 15:34:25.225 INFO nova.openstack.common.rpc.common [req-630ba185-4feb-479e-a794-2f3b6ac6fe33 None None] Reconnecting to AMQP server on localhost:5672
2013-05-13 15:34:28.229 ERROR nova.openstack.common.rpc.common [req-630ba185-4feb-479e-a794-2f3b6ac6fe33 None None] AMQP server on localhost:5672 is unreachable: Socket closed. Trying again in 30 seconds.
2013-05-13 15:34:58.258 INFO nova.openstack.common.rpc.common [req-630ba185-4feb-479e-a794-2f3b6ac6fe33 None None] Reconnecting to AMQP server on localhost:5672
2013-05-13 15:35:01.261 ERROR nova.openstack.common.rpc.common [req-630ba185-4feb-479e-a794-2f3b6ac6fe33 None None] AMQP server on localhost:5672 is unreachable: Socket closed. Trying again in 30 seconds.

/var/log/rabbitmq/rabbit@cloud.log

=INFO REPORT==== 13-May-2013::15:34:58 ===
accepted TCP connection on [::]:5672 from 127.0.0.1:33000

=INFO REPORT==== 13-May-2013::15:34:58 ===
starting TCP connection <0.958.0> from 127.0.0.1:33000

=ERROR REPORT==== 13-May-2013::15:35:01 ===
exception on TCP connection <0.958.0> from 127.0.0.1:33000
{channel0_error,starting,
                {amqp_error,access_refused,
                            "AMQPLAIN login refused: user 'guest' - invalid credentials",
                            'connection.start_ok'}}

=INFO REPORT==== 13-May-2013::15:35:01 ===
closing TCP connection <0.958.0> from 127.0.0.1:33000