yahoo-eng-team team mailing list archive

[Ludovic Beliveau <ludovic.beliveau@xxxxxxxxxxxxx>]

Public bug reported:

Changes in PCI device configuration is not reflected in the database
(pci_stats).  After nova reboot, pci_stats still hold stale data.

Steps to reproduce:
1. Configure SR-IOV on an interface and edit nova.conf/pci_passthrough_whitelist accordingly.
2. Start nova on the compute.
3. Remove the SR-IOV interface and it's configuration in nova.conf.
4. Restart nova on the compute.
5. Validate that pci_stats still hold the PCI device information by looking at the SQL database.

This behavior cause the scheduler to still try to schedule an instance
on the compute that had PCI configured even since no PCI device are
availalble.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1487451

Title:
  Stale pci_stats in the DB after PCI reconfiguration

Status in OpenStack Compute (nova):
  New

Bug description:
  Changes in PCI device configuration is not reflected in the database
  (pci_stats).  After nova reboot, pci_stats still hold stale data.

  Steps to reproduce:
  1. Configure SR-IOV on an interface and edit nova.conf/pci_passthrough_whitelist accordingly.
  2. Start nova on the compute.
  3. Remove the SR-IOV interface and it's configuration in nova.conf.
  4. Restart nova on the compute.
  5. Validate that pci_stats still hold the PCI device information by looking at the SQL database.

  This behavior cause the scheduler to still try to schedule an instance
  on the compute that had PCI configured even since no PCI device are
  availalble.

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