Here is the compute.log:

2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup Traceback (most recent call last):
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/nova/openstack/common/threadgroup.py", line 145, in wait
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     x.wait()
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/nova/openstack/common/threadgroup.py", line 47, in wait
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     return self.thread.wait()
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/eventlet/greenthread.py", line 175, in wait
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     return self._exit_event.wait()
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/eventlet/event.py", line 121, in wait
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     return hubs.get_hub().switch()
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/eventlet/hubs/hub.py", line 294, in switch
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     return self.greenlet.switch()
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/eventlet/greenthread.py", line 214, in main
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     result = function(*args, **kwargs)
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/nova/openstack/common/service.py", line 497, in run_service
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     service.start()
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/nova/service.py", line 196, in start
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     self.manager.pre_start_hook()
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1465, in pre_start_hook
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     self.update_available_resource(nova.context.get_admin_context())
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 6888, in update_available_resource
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     rt.update_available_resource(context)
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/nova/compute/resource_tracker.py", line 448, in update_available_resource
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     resources = self.driver.get_available_resource(self.nodename)
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 5463, in get_available_resource
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     disk_over_committed = self._get_disk_over_committed_size_total()
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 6682, in _get_disk_over_committed_size_total
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     self._get_instance_disk_info(dom.name(), xml))
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 6621, in _get_instance_disk_info
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     dk_size = lvm.get_volume_size(path)
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/lvm.py", line 172, in get_volume_size
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     run_as_root=True)
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/utils.py", line 55, in execute
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     return utils.execute(*args, **kwargs)
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/nova/utils.py", line 206, in execute
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     return processutils.execute(*cmd, **kwargs)
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py", line 233, in execute
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup     cmd=sanitized_cmd)
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup ProcessExecutionError: Unexpected error while running command.
2015-12-03 16:39:18.326 1506 TRACE nova.openstack.common.threadgroup Command: sudo nova-rootwrap /etc/nova/rootwrap.conf blockdev --getsize64 /dev/disk/by-path/ip-162.161.1.208:3260-iscsi-iqn.2000-09.com.fujitsu:storage-system.eternus-dxl:002859c4-lun-0