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[Bug 1228872] Re: Resource tracking updates PCI stats when they are not supported by the underlying driver

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Thu, 03 Oct 2013 08:02:23 -0000
Reply-to: Bug 1228872 <1228872@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: nova
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1228872

Title:
  Resource tracking updates PCI stats when they are not supported by the
  underlying driver

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  At the moment only libvirt supports resource tracking. In the case that the host does not report the pci_stats then the data structure will be updated and there will be writes to the database. This will be done even though the data is not retuned from the host.
  It is a waste of cycle and valuable resoures

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