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[OpenStack Infra <1793556@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/602127
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=9d5fb1b58e908ccacbbbf29341918d0b0588a36f
Submitter: Zuul
Branch:    master

commit 9d5fb1b58e908ccacbbbf29341918d0b0588a36f
Author: Jim Rollenhagen <jim@xxxxxxxxxxxxxxxxxx>
Date:   Wed Sep 12 12:11:30 2018 -0600

    ironic: stop hammering ironic API in power sync loop
    
    Use our node cache to look up the node for an instance, if we have it.
    If we can't find it, fall back to hitting ironic's API.
    
    This should be relatively up-to-date info, as it is refreshed on every
    resource tracker loop.
    
    Closes-Bug: #1793556
    Change-Id: I0069cbc327d952d42dbb8fe54949faab89995a7e


** Changed in: nova
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1793556

Title:
  ironic: power sync loop makes way too many API calls

Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  The ironic driver does not use its local cache of node data for the
  get_info call, which is used during the instance power sync. This
  results in N API calls per power sync loop, where N is the number of
  instances managed by the compute service doing the sync.

  We should aim to use the cache and reduce this to one or less API
  calls.

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