Comment 6 for bug 1388882

It's a not neutron-related bug, besause:

Mon Nov 03 14:05:50 +0000 2014 /Stage[main]/Neutron::Server::Notifications/Nova_admin_tenant_id_setter[nova_admin_tenant_id]/ensure (err): change from absent to present failed: Received error response from Keystone server at http://10.108.2.2:35357/v2.0/tokens: Gateway Time-out
Mon Nov 03 14:05:50 +0000 2014 /Stage[main]/Neutron::Server::Notifications/Nova_admin_tenant_id_setter[nova_admin_tenant_id] (debug): Nothing to manage: no ensure and the resource doesn't exist
Mon Nov 03 14:05:50 +0000 2014 /Stage[main]/Neutron::Server::Notifications/Nova_admin_tenant_id_setter[nova_admin_tenant_id] (info): Evaluated in 60.37 seconds

Keystone didn't answer to the request long time.