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[OpenStack Infra <1709774@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/494376
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=8c3cb2e15b48f5e2b0c3d22550f00f3c7adc7f33
Submitter: Jenkins
Branch:    master

commit 8c3cb2e15b48f5e2b0c3d22550f00f3c7adc7f33
Author: Swaminathan Vasudevan <SVasudevan@xxxxxxxx>
Date:   Wed Aug 16 21:48:08 2017 -0700

    DVR: Multiple csnat ports created when RouterPort table update fails
    
    When router interfaces are added to DVR router, if the router has
    gateway configured, then the internal csnat ports are created for
    the corresponding router interfaces.
    We have seen recently after the csnat port is created if the
    RouterPort table update fails, there is a DB retry that is happening
    and that retry operation is creating an additional csnat port.
    This additional port is not getting removed automatically when the
    router interfaces are deleted.
    This issue is seen when testing with a simple heat template as
    per the bug report.
    
    This patch fixes the issue by calling the RouterPort create with
    delete_port_on_error context.
    
    Change-Id: I916011f2200f02556ebb30bce30e349a8023602c
    Closes-Bug: #1709774


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

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https://bugs.launchpad.net/bugs/1709774

Title:
  Multiple router_centralized_snat interfaces created during Heat
  deployment

Status in OpenStack Heat:
  Invalid
Status in neutron:
  Fix Released

Bug description:
  While attempting to deploy the attached hot template I ran into a few
  issues:

  1. Multiple router_centralized_snat interfaces are being created.
  2. One router_centralized_snat interface is created, but it's Down.

  When Multiple interfaces are created the stack can't be deleted. I
  need to manually delete the additional ports that have been created
  before the stack can be deleted.

  I'm using Newton with OVS+DVR.

  
  I should state up front that the `depends_on` that are in the template are more of a last ditch effort than anything else, and are likely incorrect. However, without them the problem still exists.

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