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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: Low => Undecided

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

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https://bugs.launchpad.net/bugs/1177103

Title:
  GlusterFS volume mount should check for O_DIRECT support

Status in OpenStack Compute (nova):
  Expired

Bug description:
  From https://ask.openstack.org/question/758 :

  GlusterFS mounts on older platforms (i.e. Ubuntu 12.04) don't support
  O_DIRECT, and fail because driver_cache = "none" is set by
  LibvirtBaseVolumeDriver.

  The instance store LibvirtDriver has a check for this which sets
  disk_cachemode to "writethrough" if O_DIRECT is not supported.  The
  volume mounting code should do a similar check and set the option
  accordingly.

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