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[OpenStack Infra <1402915@xxxxxxxxxxxxxxxxxx>]

** Changed in: horizon
       Status: Invalid => In Progress

** Changed in: horizon
     Assignee: (unassigned) => Radomir Dopieralski (deshipu)

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https://bugs.launchpad.net/bugs/1402915

Title:
  Error: Unable to retrieve attachment information

Status in OpenStack Dashboard (Horizon):
  In Progress

Bug description:
  Version: stable/juno

  Bug description:
  In the view of "Volumes", provided that some volume whose status is "in-use" or it is being attached to a VM. If the associated VM is deleted, this will trigger the detaching of the volume. If the volume detaching process is failed by whatever reason, then the volume becomes attached to an already-deleted VM. 
  If now, we try retrieving the volume info with Horizon dashboard then we will get the error of "Unable to retrieve attachment information".

  Proposal:
  Such an error has to be disabled and the info of the field "Attached To" should be set to None or left blank as if the volume were not attached to the VM.  Furthermore, the field "Status" should be set back to blank

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