yahoo-eng-team team mailing list archive

[Robert Collins <1260102@xxxxxxxxxxxxxxxxxx>]

** Summary changed:

- Removal of a baremetal node does not propagate to scheduler quickly
+ Addition/Removal of a baremetal node does not propagate to scheduler quickly

** Description changed:

- With the baremetal driver, if a baremetal node is deleted, it is not
- removed from pool of available resources until the next run of
+ With the baremetal driver, if a baremetal node is added/deleted, it is
+ not removed from pool of available resources until the next run of
  update_available_resource(). During this window, the scheduler may
- continue to attempt to schedule instances on it, leading to unnecessary
- failures and scheduling retries.
+ continue to attempt to schedule instances on it (when deleted), or
+ report NoValidHosts (when added) leading to unnecessary failures and
+ scheduling retries.
  
  This bug will also apply to the ironic driver, which will rely on the
  same mechanism(s) for listing and scheduling compute resources.

** Also affects: ironic
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1260102

Title:
  Addition/Removal of a baremetal node does not propagate to scheduler
  quickly

Status in Ironic (Bare Metal Provisioning):
  New
Status in OpenStack Compute (Nova):
  Triaged

Bug description:
  With the baremetal driver, if a baremetal node is added/deleted, it is
  not removed from pool of available resources until the next run of
  update_available_resource(). During this window, the scheduler may
  continue to attempt to schedule instances on it (when deleted), or
  report NoValidHosts (when added) leading to unnecessary failures and
  scheduling retries.

  This bug will also apply to the ironic driver, which will rely on the
  same mechanism(s) for listing and scheduling compute resources.

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