yahoo-eng-team team mailing list archive

[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: nova
       Status: Fix Committed => Fix Released

-- 
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/1175886

Title:
  nova-compute crash during taking snapshot

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  Nova Folsum version. Version  Qemu 1.2.0

  During taking snapshot, after a snapshot is taken and before it's
  deleted, qemu-img might get this output:

  [root@onelab1 ~]# qemu-img info /var/lib/nova/instances/instance-00000091/disk
  image: /var/lib/nova/instances/instance-00000091/disk
  file format: qcow2
  virtual size: 9.8G (10486808576 bytes)
  disk size: 274M
  cluster_size: 65536
  backing file: /var/lib/nova/instances/_base/52cc75a4d822082eb93df5cfe7c74496649abccb
  Snapshot list:
  ID        TAG                 VM SIZE                DATE       VM CLOCK
  1         instance-00000091_snapshot   261M 2013-05-02 17:01:06   30:48:06.288

  That will cause exception in nova/virt/images.py:

  def qemu_img_info(path):
      """Return a dict containing the parsed output from qemu-img info."""

      out, err = utils.execute('env', 'LC_ALL=C', 'LANG=C',
                               'qemu-img', 'info', path)

      # output of qemu-img is 'field: value'
      data = {}
      for line in out.splitlines():
          field, val = line.split(':', 1) #<== Exception at this line when processing lines containing no ":"
          if val[0] == " ":  #<== this line causes exception when process the line of "Snapshot list:"
              val = val[1:]
          data[field] = val

      return data

To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1175886/+subscriptions