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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

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

** Changed in: nova
    Milestone: None => liberty-1

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https://bugs.launchpad.net/bugs/1392923

Title:
  Orphan floating ip's created via rapid delete/assign/remove operations

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  It is possible to create 'orphan' floating ip's (at least in devstack testing) through a sequence of:
  delete vip
  assign vip
  remove vip

  API calls + timestamps from a test run:
  26101:[2014-11-14 17:18:57,446] mahmachine/INFO/stdout: 0x7f8833395250: delete floating ip id: 14
  26145:[2014-11-14 17:18:58,237] mahmachine/INFO/stdout: 0x7f88333e8810: assign floating ip: 172.24.4.14 || d4545f39-6a5c-40e3-99f4-f72c22d56fc7
  27333:[2014-11-14 17:19:25,144] mahmachine/INFO/stdout: 0x7f88333e8810: remove floating ip: 172.24.4.14 || d4545f39-6a5c-40e3-99f4-f72c22d56fc7

  This results in floating ip addresses that are still listed as
  attached to an instance, yet are not owned (and are not removable) by
  the instance's owner.

  In the database, the fixed_ip_id is not null (the server id), yet the project id is:
  the 'host' column may or may not be populated, but the cause and effect appear to be the same regardless of this.

  select id, address, fixed_ip_id, project_id, host from floating_ips where project_id IS NULL and fixed_ip_id IS NOT NULL;
  +----+-------------+-------------+------------+-------------+
  | id | address     | fixed_ip_id | project_id | host        |
  +----+-------------+-------------+------------+-------------+
  |  2 | 172.24.4.2  |           4 | NULL       | NULL        |
  |  7 | 172.24.4.7  |           4 | NULL       | mahmachine  |
  | 11 | 172.24.4.11 |           4 | NULL       | mahmachine  |
  |  6 | 172.24.4.6  |           7 | NULL       | mahmachine  |
  | 15 | 172.24.4.15 |           7 | NULL       | mahmachine  |
  |  3 | 172.24.4.3  |           8 | NULL       | mahmachine  |
  | 14 | 172.24.4.14 |          10 | NULL       | NULL        |
  +----+-------------+-------------+------------+-------------+

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