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[Matt Riedemann <mriedem.os@xxxxxxxxx>]

** Also affects: nova/ocata
   Importance: Undecided
       Status: New

** Changed in: nova
     Assignee: Matt Riedemann (mriedem) => 赵明俊 (falseuser)

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https://bugs.launchpad.net/bugs/1681989

Title:
  the deletion of the instance does not release the memory quota for
  vram

Status in OpenStack Compute (nova):
  In Progress
Status in OpenStack Compute (nova) ocata series:
  New

Bug description:
  When creating an instance, the quota is used to contain vram, and the
  deletion of the instance does not release the memory quota for vram

  If a flavor defines 512MB of RAM and 64MB of video RAM, creating an instance will take up 576MB of memory quota, but after deleting the instance, it will only release 512MB of memory quotas.
  In this way, after multiple creation and deletion of the virtual machine, it will gradually run out of the memory quota, but in fact did not run so many instances.

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