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["Markus Zoeller \(markus_z\)" <mzoeller@xxxxxxxxxxxxxxxxxx>]

This is an automated cleanup. This bug report has been closed because it
is older than 18 months and there is no open code change to fix this.
After this time it is unlikely that the circumstances which lead to
the observed issue can be reproduced.

If you can reproduce the bug, please:
* reopen the bug report (set to status "New")
* AND add the detailed steps to reproduce the issue (if applicable)
* AND leave a comment "CONFIRMED FOR: <RELEASE_NAME>"
  Only still supported release names are valid (LIBERTY, MITAKA, OCATA, NEWTON).
  Valid example: CONFIRMED FOR: LIBERTY


** Changed in: nova
   Importance: Medium => Undecided

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

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https://bugs.launchpad.net/bugs/1303802

Title:
  qemu image convert fails in snapshot

Status in OpenStack Compute (nova):
  Expired

Bug description:
  Periodically in the gate we see a failure by qemu image convert in
  snapshot:

  2014-04-07 01:31:29.470 29554 TRACE oslo.messaging.rpc.dispatcher   File "/opt/stack/new/nova/nova/openstack/common/processutils.py", line 193, in execute
  2014-04-07 01:31:29.470 29554 TRACE oslo.messaging.rpc.dispatcher     cmd=' '.join(cmd))
  2014-04-07 01:31:29.470 29554 TRACE oslo.messaging.rpc.dispatcher ProcessExecutionError: Unexpected error while running command.
  2014-04-07 01:31:29.470 29554 TRACE oslo.messaging.rpc.dispatcher Command: qemu-img convert -f qcow2 -O qcow2 /opt/stack/data/nova/instances/4ff6dc10-eac8-41d2-a645-3a0e0ba07c8a/disk /opt/stack/data/nova/instances/snapshots/tmpcVpCxJ/33eb0bb2b49648c69770b47db3211a86
  2014-04-07 01:31:29.470 29554 TRACE oslo.messaging.rpc.dispatcher Exit code: 1
  2014-04-07 01:31:29.470 29554 TRACE oslo.messaging.rpc.dispatcher Stdout: ''
  2014-04-07 01:31:29.470 29554 TRACE oslo.messaging.rpc.dispatcher Stderr: 'qemu-img: error while reading sector 0: Input/output error\n'

  qemu-img is very obtuse on what the actual issue is, so it's unclear
  if this is a corrupt disk, or a totally missing disk.

  The user visible face of this is on operations like shelve where the
  instance will believe that it's still in active state -
  http://logs.openstack.org/02/85602/1/gate/gate-tempest-dsvm-
  full/20ed964/console.html#_2014-04-07_01_44_29_309

  Even though everything is broken instead.

  Logstash query:
  http://logstash.openstack.org/#eyJzZWFyY2giOiJcInFlbXUtaW1nOiBlcnJvclwiIiwiZmllbGRzIjpbXSwib2Zmc2V0IjowLCJ0aW1lZnJhbWUiOiI2MDQ4MDAiLCJncmFwaG1vZGUiOiJjb3VudCIsInRpbWUiOnsidXNlcl9pbnRlcnZhbCI6MH0sInN0YW1wIjoxMzk2ODc2MTQ4NDc3fQ==

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