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[Bug 1355857] Re: HyperV: resize of instance fails when trying migration across host

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Alessandro Pilotti <1355857@xxxxxxxxxxxxxxxxxx>
Date: Wed, 10 Sep 2014 14:02:44 -0000
Reply-to: Bug 1355857 <1355857@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Python raises a very misleading error when failing to access a network
share for security issues.

Make sure you run the Nova compute service with a user which has SMB
access to the target node (e.g Administrator). In particular the service
user must not be LOCALSYTEM.


** Changed in: nova
       Status: Confirmed => Invalid

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https://bugs.launchpad.net/bugs/1355857

Title:
  HyperV: resize of instance fails when trying migration across host

Status in OpenStack Compute (Nova):
  Invalid

Bug description:
  I have a devstack setup and 2 hyperv hosts. Both the hosts are in same domain. Compute service and Live Migration is enabled in both the hosts.
  When I am trying to resize a provisioned instance it succeeds if it is resized in the same host. However, when it is trying to resize and migrate across hosts it fails with following error:

  Compute.log
  2014-08-12 14:03:57.533 2992 DEBUG nova.virt.hyperv.migrationops [req-98eaeb46-1272-40af-9205-09fff169f450 None] [instance: 904fa8eb-7377-4c42-9268-eae266b52648] migrate_disk_and_power_off called migrate_disk_and_power_off C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\migrationops.py:114
  2014-08-12 14:03:57.533 2992 DEBUG nova.virt.hyperv.vmops [req-98eaeb46-1272-40af-9205-09fff169f450 None] [instance: 904fa8eb-7377-4c42-9268-eae266b52648] Power off instance power_off C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\vmops.py:425
  2014-08-12 14:03:57.908 2992 DEBUG nova.virt.hyperv.vmutils [req-98eaeb46-1272-40af-9205-09fff169f450 None] WMI job succeeded: Turning Off Virtual Machine, Elapsed=00000000000000.217830:000 _wait_for_job C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\vmutils.py:481
  2014-08-12 14:03:57.908 2992 DEBUG nova.virt.hyperv.vmutils [req-98eaeb46-1272-40af-9205-09fff169f450 None] Successfully changed vm state of instance-000005d6 to 3 set_vm_state C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\vmutils.py:394
  2014-08-12 14:03:57.908 2992 DEBUG nova.virt.hyperv.vmops [req-98eaeb46-1272-40af-9205-09fff169f450 None] Successfully changed state of VM instance-000005d6 to: 3 _set_vm_state C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\vmops.py:440
  2014-08-12 14:03:59.096 2992 DEBUG nova.virt.hyperv.migrationops [req-98eaeb46-1272-40af-9205-09fff169f450 None] Migration target host: 10.1.4.214 _migrate_disk_files C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\migrationops.py:53
  2014-08-12 14:04:04.753 2992 DEBUG nova.virt.hyperv.pathutils [req-98eaeb46-1272-40af-9205-09fff169f450 None] Creating directory: \\10.1.4.214\C$$\OpenStack\Instances\instance-000005d6 _check_create_dir C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\pathutils.py:96
  2014-08-12 14:07:20.177 2992 ERROR nova.compute.manager [req-98eaeb46-1272-40af-9205-09fff169f450 None] [instance: 904fa8eb-7377-4c42-9268-eae266b52648] Setting instance vm_state to ERROR
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648] Traceback (most recent call last):
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\compute\manager.py", line 5780, in _error_out_instance_on_exception
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     yield
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\compute\manager.py", line 3569, in resize_instance
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     block_device_info)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\driver.py", line 191, in migrate_disk_and_power_off
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     block_device_info)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\migrationops.py", line 126, in migrate_disk_and_power_off
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     self._migrate_disk_files(instance_name, disk_files, dest)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\migrationops.py", line 86, in _migrate_disk_files
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     dest_path)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\openstack\common\excutils.py", line 82, in __exit__
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     six.reraise(self.type_, self.value, self.tb)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\migrationops.py", line 70, in _migrate_disk_files
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     instance_name, dest, remove_dir=True)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\pathutils.py", line 123, in get_instance_dir
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     create_dir, remove_dir)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\pathutils.py", line 111, in _get_instances_sub_dir
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     self._check_create_dir(path)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\pathutils.py", line 97, in _check_create_dir
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     self.makedirs(path1)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\nova\virt\hyperv\pathutils.py", line 53, in makedirs
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     os.makedirs(path)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\os.py", line 150, in makedirs
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     makedirs(head, mode)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\os.py", line 150, in makedirs
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     makedirs(head, mode)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\os.py", line 150, in makedirs
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     makedirs(head, mode)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\os.py", line 150, in makedirs
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     makedirs(head, mode)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\os.py", line 150, in makedirs
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     makedirs(head, mode)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]   File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\os.py", line 157, in makedirs
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648]     mkdir(name, mode)
  2014-08-12 14:07:20.177 2992 TRACE nova.compute.manager [instance: 904fa8eb-7377-4c42-9268-eae266b52648] WindowsError: [Error 123] The filename, directory name, or volume label syntax is incorrect: '\\\\'

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References

[Bug 1355857] [NEW] HyperV: resize of instance fails when trying migration across host
From: Mayank, 2014-08-12