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[Launchpad Bug Tracker <1814226@xxxxxxxxxxxxxxxxxx>]

[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]

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

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https://bugs.launchpad.net/bugs/1814226

Title:
  disk over-commit still not correctly calculated during live migration

Status in OpenStack Compute (nova):
  Expired

Bug description:
  As far as I can see exactly the same as https://bugzilla.redhat.com/show_bug.cgi?id=1536375
  It was "re-fixed" yet another once by 0b63a7674a2391e36450dcc8e42bcb210c698c3e
  << Merge "Refix disk size during live migration with disk over-commit">>

  As a result I can't live migrate ephemeral disks with --disk-
  overcommit option.

  If I understand it correctly 'free_disk_gb' does really mean promised
  free space with all ephemeral  disks + swaps at max size. Wouldn't be
  logical if ResourceTracker takes into account allowed disk overcommit?

  -        cn.free_disk_gb = cn.local_gb - cn.local_gb_used
  +        cn.free_disk_gb = cn.local_gb * cn.disk_allocation_ratio - cn.local_gb_used

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