Hi All,

I deployed openstack based on icehouse and having a problem with live migration, instance status stays at "Migrating" forever and I get the following error:

**#root@control:~# nova live-migration 3e52960e-659c-44f6-85bc-dbd5fc3ba66e compute1
ERROR: Live migration of instance 3e52960e-659c-44f6-85bc-dbd5fc3ba66e to host compute1 failed (HTTP 400) (Request-ID: req-49dd8597-1462-440a-a964-593a93bcc477)**

Background: Ubuntu 14.04 LTS 4 nodes, control/network, and 3 compute nodes. libvirt0 1.2.2-0ubuntu13.1 KVM as hypervisor on physical HW Shared storage is used and mounted at /var/lib/nova/instances Steps followed to enable live migration is located here: http://docs.openstack.org/admin-guide-cloud/content/section_configuring-compute-migrations.html (http://docs.openstack.org/admin-guide...)

Error in nova-api:

2014-06-21 20:18:41.713 25566 ERROR nova.api.openstack.compute.contrib.admin_actions [req-49dd8597-1462-440a-a964-593a93bcc477 856beebcd4f9480390dc185626212481 cd30d2f85a114cb2b1fc6a699475f603] Live migration of instance 3e52960e-659c-44f6-85bc-dbd5fc3ba66e to host compute1 failed
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions Traceback (most recent call last):
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions   File "/usr/lib/python2.7/dist-packages/nova/api/openstack/compute/contrib/admin_actions.py", line 338, in _migrate_live
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions     disk_over_commit, host)
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions   File "/usr/lib/python2.7/dist-packages/nova/compute/api.py", line 218, in _wrapped
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions     return fn(self, context, instance, *args, **kwargs)
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions   File "/usr/lib/python2.7/dist-packages/nova/compute/api.py", line 172, in inner
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions     return f(self, context, instance, *args, **kw)
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions   File "/usr/lib/python2.7/dist-packages/nova/compute/api.py", line 3019, in live_migrate
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions     disk_over_commit=disk_over_commit)
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions   File "/usr/lib/python2.7/dist-packages/nova/conductor/api.py", line 387, in live_migrate_instance
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions     block_migration, disk_over_commit, None)
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions   File "/usr/lib/python2.7/dist-packages/nova/conductor/rpcapi.py", line 476, in migrate_server
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions     reservations=reservations)
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions   File "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/client.py", line 150, in call
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions     wait_for_reply=True, timeout=timeout)
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib.admin_actions   File "/usr/lib/python2.7/dist-packages/oslo/messaging/transport.py", line 90, in _send
2014-06-21 20:18:41.713 25566 TRACE nova.api.openstack.compute.contrib ...