yahoo-eng-team team mailing list archive

[Soroush Kaviani <2023162@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Hello
When i create snapshot from some of my instances with Windows OS the snapshot is deleted from list and when I check the nova compute log i see this error:

Nov 29 09:37:32 computeXX libvirtd[2880]: internal error: unable to
execute QEMU agent command 'guest-fsfreeze-thaw': couldn't hold writes:
fsfreeze is limited up to 10 seconds:

Qemu Guest Agent version in windows instances are updated but problem not solved.
now the only way to create snapshot from these instances is pausing and then create snapshot.

I have send guest-fs-freeze command manually to instance and i see
sometime freezing maybe timed_out but if the fs-freeze request be
repeated fs-freeze is done with success.

I think if nova repeats the fs_freeze request to qemu-guest-agent of
instances when get timeout, the problem solve and live snapshot for all
windows instances is without any problem.

thanks for your attention

** Affects: nova
     Importance: Undecided
         Status: New

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/2023162

Title:
  fsfreeze error when create snapshot windows instances

Status in OpenStack Compute (nova):
  New

Bug description:
  Hello
  When i create snapshot from some of my instances with Windows OS the snapshot is deleted from list and when I check the nova compute log i see this error:

  Nov 29 09:37:32 computeXX libvirtd[2880]: internal error: unable to
  execute QEMU agent command 'guest-fsfreeze-thaw': couldn't hold
  writes: fsfreeze is limited up to 10 seconds:

  Qemu Guest Agent version in windows instances are updated but problem not solved.
  now the only way to create snapshot from these instances is pausing and then create snapshot.

  I have send guest-fs-freeze command manually to instance and i see
  sometime freezing maybe timed_out but if the fs-freeze request be
  repeated fs-freeze is done with success.

  I think if nova repeats the fs_freeze request to qemu-guest-agent of
  instances when get timeout, the problem solve and live snapshot for
  all windows instances is without any problem.

  thanks for your attention

To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/2023162/+subscriptions