rabbitmq authentication failures

Issue

• Following the Installation and Configuration Guide guide, Part of this deployment includes the use of a separate rabbitmq VM, also rhel7. I'm having a strange authentication issue with rabbitmq.

• From the rabbitmq log:

=ERROR REPORT==== 16-Jul-2014::09:08:33 ===
closing AMQP connection <0.19688.0> (192.168.0.1:46642 -> 192.168.0.2:5672):
{handshake_error,starting,0,
                 {amqp_error,access_refused,
                             "AMQPLAIN login refused: user 'cinder' - invalid credentials",
                             'connection.start_ok'}}

• The user exists and has the correct/same password set:

# rabbitmqctl list_users
Listing users ...
cinder  [administrator]
guest   [administrator]
heat    [administrator]
neutron [administrator]
nova    [administrator]
...done.
# rabbitmqctl list_permissions
Listing permissions in vhost "/" ...
cinder  .*      .*      .*
guest   .*      .*      .*
heat    .*      .*      .*
neutron .*      .*      .*
nova    .*      .*      .*
...done.

• Just to confirm again, I just reset the password again and restarted the service:

# rabbitmqctl change_password cinder openstack
Changing password for user "cinder" ...
...done.
# systemctl restart rabbitmq-server.service

• This is the config from the physical node providing the cinder resources:

[DEFAULT]
auth_strategy = keystone
rpc_backend = cinder.openstack.common.rpc.impl_kombu
rabbit_host = rabbit.example.com
rabbit_port = 5672
rabbit_userid = cinder
rabbit_pass = openstack
sql_connection = mysql://cinder:openstack@mysql.example.com/cinder
osapi_volume_workers = 12
volume_group = cinder-volumes
volume_driver = cinder.volume.drivers.lvm.LVMISCSIDriver

• And I restarted everything again, But same result:

=INFO REPORT==== 16-Jul-2014::15:56:38 ===
accepting AMQP connection <0.302.0> (192.168.0.1:46642 -> 192.168.0.2:5672)

=ERROR REPORT==== 16-Jul-2014::15:56:41 ===
closing AMQP connection <0.302.0> (192.168.0.1:46642 -> 192.168.0.2:5672):
{handshake_error,starting,0,
                 {amqp_error,access_refused,
                             "AMQPLAIN login refused: user 'cinder' - invalid credentials",
                             'connection.start_ok'}}