VMWARE : create volume fails if targeted datastore's host is in maintenace mode.

[satyadev svn]

pre req : move two hosts to maintenace mode in cluster. Now I create a profile with those host's datastore mapped to profile. and user create volume type with profile. say [ profile name : bronze]

Test steps :
as admin user create a volume type with bronze profile. [cinder type-create bronze ; cinder type-key bronze set vmware:storage_profile=bronze]

Now create volume from above volume type. [cinder create --volume-type bronze 1]

log snipet :

2014-09-17 14:47:44.777 [01;31mERROR cinder.volume.drivers.vmware.vmdk [[01;36mreq-40c5a6ac-2310-482c-8ba9-ffb24134f298 [00;36m02b8c430f4e347528939f69c874ddf80 755e658cd34b44448418d7a31ec2ab7d[01;31m] [01;35m[01;31mException in copying the image to the volume: (VimFaultException('Unable to access the virtual machine configuration: Unable to access file [local-0 (2)]',),).[00m
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00mTraceback (most recent call last):
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m File "/opt/stack/cinder/cinder/volume/drivers/vmware/vmdk.py", line 1277, in copy_image_to_volume
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m image_size_in_bytes, image_adapter_type, image_disk_type)
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m File "/opt/stack/cinder/cinder/volume/drivers/vmware/vmdk.py", line 1130, in _create_volume_from_non_stream_optimized_image
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m vmdk_path.get_descriptor_ds_file_path(), dc_ref)
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m File "/opt/stack/cinder/cinder/openstack/common/excutils.py", line 82, in __exit__
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m six.reraise(self.type_, self.value, self.tb)
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m File "/opt/stack/cinder/cinder/volume/drivers/vmware/vmdk.py", line 1117, in _create_volume_from_non_stream_optimized_image
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m disk_type)
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m File "/opt/stack/cinder/cinder/volume/drivers/vmware/volumeops.py", line 1042, in clone_backing
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m task_info = self._session.wait_for_task(task)
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m File "/opt/stack/cinder/cinder/volume/drivers/vmware/api.py", line 288, in wait_for_task
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m return loop.start(self._task_poll_interval).wait()
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m File "/usr/local/lib/python2.7/dist-packages/eventlet/event.py", line 121, in wait
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m return hubs.get_hub().switch()
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m File "/usr/local/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 293, in switch
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m return self.greenlet.switch()
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m File "/opt/stack/cinder/cinder/openstack/common/loopingcall.py", line 81, in _inner
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m self.f(*self.args, **self.kw)
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m File "/opt/stack/cinder/cinder/volume/drivers/vmware/api.py", line 319, in _poll_task
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m raise excep
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00mVimFaultException: Unable to access the virtual machine configuration: Unable to access file [local-0 (2)]
[01;31m2014-09-17 14:47:44.777 TRACE cinder.volume.drivers.vmware.vmdk [01;35m[00m
2014-09-17 14:47:44.779 [01;31mERROR cinder.volume.flows.manager.create_volume [[01;36mreq-40c5a6ac-2310-482c-8ba9-ffb24134f298 [00;36m02b8c430f4e347528939f69c874ddf80 755e658cd34b44448418d7a31ec2ab7d[01;31m] [01;35m[01;31mFailed to copy image c42a16fe-36ee-48da-845f-76227790666d to volume: 3b47f53e-0a27-4923-8e1b-f55998dee91b, error: Unable to access the virtual machine configuration: Unable to access file [local-0 (2)][00m
2014-09-17 14:47:44.780 [00;32mDEBUG taskflow.engines.action_engine.runner [[01;36mreq-40c5a6ac-2310-482c-8ba9-ffb24134f298 [00;36m02b8c430f4e347528939f69c874ddf80 755e658cd34b44448418d7a31ec2ab7d[00;32m] [01;35m[00;32mExiting old state 'SCHEDULING' in response to event 'wait'[00m [00;33mfrom (pid=20239) on_exit /opt/stack/taskflow/taskflow/engines/action_engine/runner.py:156[00m
2014-09-17 14:47:44.780 [00;32mDEBUG taskflow.engines.action_engine.runner

[satyadev svn (svnsatya)]

VC cluster have 4 hosts [so move 2 hots to maintenace mode].

profile mapped to all hosts datastores.

[satyadev svn (svnsatya)]

- create volume of bronze profile with image as source.
Attaching logs [host-15 in maintenance mode and local-0(2) is present that host.]

[Vipin Balachandran (vbala)]

Volume create won't fail due to hosts in maintenance mode. As per the logs, clone backing failed and this is due to bug 1380602.