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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/1018253

Title:
  No error message prompt during attaching when mountpoint is occupied

Status in OpenStack Dashboard (Horizon):
  Confirmed
Status in OpenStack Compute (nova):
  Expired

Bug description:
  Correct me if I am wrong.
  When we attach a volume to an instance at the mountpoint /dev/vdb, I expect that there should be a error message prompt in horizon if /dev/vdb is already occupied by, for example, another instance. Currently there is no error message prompt.

  How to create this bug:
  1, Launch one instance.
  2. Create a first volume and a second volume.
  3. Attach the first volume to the instance at the mountpoint /dev/vdb  and succeed.
  3. Attach the second volume to the same instance at the same mountpoint /dev/vdb.

  Expected output:
  A message should tell user that the mountpoint is occupied, not available or something.

  Actual output:
  No message shows. The second volume is still available.

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