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[Terry Yao <yaohaif@xxxxxxxxxx>]

Public bug reported:

nova compute manager.update_available_resource() periodic task is not
configurable for it's interval. For some case, there might be multiple
compute services in one process, so there will be multiple periodic
tasks were running in a process, and cpu cycles are mostly occupied by
this periodic task as it will also get the resource to the
virtualization layer.

It's better to expose this periodic task to be configurable.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1391029

Title:
  compute manager update_available_resource interval needs to be
  configurable

Status in OpenStack Compute (Nova):
  New

Bug description:
  nova compute manager.update_available_resource() periodic task is not
  configurable for it's interval. For some case, there might be multiple
  compute services in one process, so there will be multiple periodic
  tasks were running in a process, and cpu cycles are mostly occupied by
  this periodic task as it will also get the resource to the
  virtualization layer.

  It's better to expose this periodic task to be configurable.

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