I resized an instance to a larger flavour and than tried resizing back to the previous flavour.
cli report resize complete while nova-compute.log reports error:
[root@orange-vdse ~(keystone_admin)]# nova resize 3233a5ea-e4b0-4c98-ac2f-82900bf54d3a 1 --poll
Server resizing... 100% complete
Finished
2014-05-16 18:35:55.296 32590 INFO nova.compute.resource_tracker [-] Compute_service record updated for orange-vdse.qa.lab.tlv.redhat.com:orange-vdse.qa.lab.tlv.redhat.com
2014-05-16 18:36:11.889 32590 INFO nova.compute.manager [req-ff5e5cc6-2dd7-4515-91a5-a4b8f177ad72 c9062d562d9f41e4a1fdce36a4f176f6 4ad766166539403189f2caca1ba306aa] [instance: 3233a5ea-e4b0-4c98-ac2f-82900bf54d3a] Setting instance back t
o ACTIVE after: Instance rollback performed due to: Resize error: Unable to resize disk down.
2014-05-16 18:36:12.141 32590 ERROR oslo.messaging.rpc.dispatcher [-] Exception during message handling: Resize error: Unable to resize disk down.
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher Traceback (most recent call last):
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line 133, in _dispatch_and_reply
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher incoming.message))
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line 176, in _dispatch
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher return self._do_dispatch(endpoint, method, ctxt, args)
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line 122, in _do_dispatch
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher result = getattr(endpoint, method)(ctxt, **new_args)
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/exception.py", line 88, in wrapped
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher payload)
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher six.reraise(self.type_, self.value, self.tb)
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/exception.py", line 71, in wrapped
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher return f(self, context, *args, **kw)
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 280, in decorated_function
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher pass
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher six.reraise(self.type_, self.value, self.tb)
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 266, in decorated_function
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher return function(self, context, *args, **kwargs)
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 333, in decorated_function
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher function(self, context, *args, **kwargs)
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 254, in decorated_function
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher break
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher six.reraise(self.type_, self.value, self.tb)
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 235, in decorated_function
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher return function(self, context, *args, **kwargs)
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 309, in decorated_function
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher e, sys.exc_info())
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher six.reraise(self.type_, self.value, self.tb)
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 296, in decorated_function
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher return function(self, context, *args, **kwargs)
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 3464, in resize_instance
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher self.instance_events.clear_events_for_instance(instance)
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib64/python2.7/contextlib.py", line 35, in __exit__
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher self.gen.throw(type, value, traceback)
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 5556, in _error_out_instance_on_exception
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher raise error.inner_exception
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher ResizeError: Resize error: Unable to resize disk down.
2014-05-16 18:36:12.141 32590 TRACE oslo.messaging.rpc.dispatcher
2014-05-16 18:36:12.142 32590 ERROR oslo.messaging._drivers.common [-] Returning exception Resize error: Unable to resize disk down. to caller
2014-05-16 18:36:12.142 32590 ERROR oslo.messaging._drivers.common [-] ['Traceback (most recent call last):\n', ' File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line 133, in _dispatch_and_reply\n incoming.m
essage))\n', ' File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line 176, in _dispatch\n return self._do_dispatch(endpoint, method, ctxt, args)\n', ' File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc
/dispatcher.py", line 122, in _do_dispatch\n result = getattr(endpoint, method)(ctxt, **new_args)\n', ' File "/usr/lib/python2.7/site-packages/nova/exception.py", line 88, in wrapped\n payload)\n', ' File "/usr/lib/python2.7/site
-packages/nova/openstack/common/excutils.py", line 68, in __exit__\n six.reraise(self.type_, self.value, self.tb)\n', ' File "/usr/lib/python2.7/site-packages/nova/exception.py", line 71, in wrapped\n return f(self, context, *args
, **kw)\n', ' File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 280, in decorated_function\n pass\n', ' File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__\n six.reraise(self.type_, self.value, self.tb)\n', ' File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 266, in decorated_function\n return function(self, context, *args, **kwargs)\n', ' File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 333, in decorated_function\n function(self, context, *args, **kwargs)\n', ' File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 254, in decorated_function\n break\n', ' File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__\n six.reraise(self.type_, self.value, self.tb)\n', ' File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 235, in decorated_function\n return function(self, context, *args, **kwargs)\n', ' File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 309, in decorated_function\n e, sys.exc_info())\n', ' File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__\n six.reraise(self.type_, self.value, self.tb)\n', ' File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 296, in decorated_function\n return function(self, context, *args, **kwargs)\n', ' File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 3464, in resize_instance\n self.instance_events.clear_events_for_instance(instance)\n', ' File "/usr/lib64/python2.7/contextlib.py", line 35, in __exit__\n self.gen.throw(type, value, traceback)\n', ' File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 5556, in _error_out_instance_on_exception\n raise error.inner_exception\n', 'ResizeError: Resize error: Unable to resize disk down.\n']
2014-05-16 18:36:55.603 32590 AUDIT nova.compute.resource_tracker [-] Auditing locally available compute resources
2014-05-16 18:36:55.843 32590 WARNING nova.compute.resource_tracker [-] [instance: 3233a5ea-e4b0-4c98-ac2f-82900bf54d3a] Instance not resizing, skipping migration.
2014-05-16 18:36:55.843 32590 WARNING nova.compute.resource_tracker [-] [instance: 3233a5ea-e4b0-4c98-ac2f-82900bf54d3a] Instance not resizing, skipping migration.
2014-05-16 18:36:55.844 32590 WARNING nova.compute.resource_tracker [-] [instance: 3233a5ea-e4b0-4c98-ac2f-82900bf54d3a] Instance not resizing, skipping migration.