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[melanie witt <1747582@xxxxxxxxxxxxxxxxxx>]

The bug has been fixed as of the Pike release as part of the re-
architecting of the quotas code. The re-architecting changes are not
backportable and we're not going to fix the legacy quotas code for older
versions.

Newton has been EOL since 2017-10-25, so we wouldn't be applying new
fixes there anyway.

** Changed in: nova
       Status: Incomplete => Won't Fix

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https://bugs.launchpad.net/bugs/1747582

Title:
  delete a resize instance  change quota_usages  incorrectly

Status in OpenStack Compute (nova):
  Won't Fix

Bug description:
  Description
  ===========
  After a resize instance in finish_resize step fault, the quota rollback but instance has changed to new flavor, then delete the instance use new flavor to reduce quota usage.

  Steps to reproduce
  ==================
  1、execute 'nova limits --tenant <tenant>' to show quota usages.
  2、create an instance with m1.tiny flavor.
  3、create a new flavor with same config to m1.tiny, except add vcpus to 2.
  4、make finish resize error, like port binding failed, and use new flavor to resize instance.
  5、after delete the instance, use 'nova limits  --tenant <tenant>' to show quota usages.

  Expected result
  ===============
  The second quota_usages cores used as same as the first.

  Actual result
  =============
  The second quota_usages cores used less than the first.

  Environment
  ===========
  Newton
  libvirt & KVM

  Logs & Configs
  ==============
  resize error:
  2018-01-30 16:19:37.137 8378 INFO nova.compute.manager [req-9e11622b-66b5-4c7a-8443-e9ba3b847aa2 - - - - -] [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc] Migrating
  2018-01-30 16:19:37.255 8378 INFO nova_patch.compute.manager [req-9e11622b-66b5-4c7a-8443-e9ba3b847aa2 - - - - -] Report alarm notice for resize.prep instance end. Details: alarm_notice_instance_operation, instance_name: ldf_vm, instance_id: a97d7530-d6b7-48f9-bb88-4635b5e14fdc,result: True
  2018-01-30 16:19:46.994 8378 WARNING nova.context [req-9e11622b-66b5-4c7a-8443-e9ba3b847aa2 - - - - -] Arguments dropped when creating context: {u'is_admin_project': True}
  2018-01-30 16:19:47.890 8378 ERROR nova.compute.manager [req-9e11622b-66b5-4c7a-8443-e9ba3b847aa2 - - - - -] [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc] Setting instance vm_state to ERROR
  2018-01-30 16:19:47.890 8378 ERROR nova.compute.manager [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc] Traceback (most recent call last):
  2018-01-30 16:19:47.890 8378 ERROR nova.compute.manager [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc]   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4348, in finish_resize
  2018-01-30 16:19:47.890 8378 ERROR nova.compute.manager [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc]     disk_info, image_meta)
  2018-01-30 16:19:47.890 8378 ERROR nova.compute.manager [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc]   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4282, in _finish_resize
  2018-01-30 16:19:47.890 8378 ERROR nova.compute.manager [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc]     migration_p)
  2018-01-30 16:19:47.890 8378 ERROR nova.compute.manager [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc]   File "/usr/lib/python2.7/site-packages/nova/network/neutronv2/api.py", line 1654, in migrate_instance_finish
  2018-01-30 16:19:47.890 8378 ERROR nova.compute.manager [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc]     migration=migration)
  2018-01-30 16:19:47.890 8378 ERROR nova.compute.manager [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc]   File "/usr/lib/python2.7/site-packages/nova/network/neutronv2/api.py", line 2060, in _update_port_binding_for_instance
  2018-01-30 16:19:47.890 8378 ERROR nova.compute.manager [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc]     self._ensure_no_port_binding_failure(port)
  2018-01-30 16:19:47.890 8378 ERROR nova.compute.manager [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc]   File "/usr/lib/python2.7/site-packages/nova_patch/network/neutronv2/api.py", line 82, in _ensure_no_port_binding_failure
  2018-01-30 16:19:47.890 8378 ERROR nova.compute.manager [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc]     raise exception.PortBindingFailed(port_id=port['id'])
  2018-01-30 16:19:47.890 8378 ERROR nova.compute.manager [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc] PortBindingFailed: Binding failed for port d6748c8d-9935-45d5-95bb-9d4eecbe45a7, please check neutron logs for more information.
  2018-01-30 16:19:47.890 8378 ERROR nova.compute.manager [instance: a97d7530-d6b7-48f9-bb88-4635b5e14fdc] 

  quota_usages:
  [root@NAIL2SHELVE3SLOT ~(keystone_admin)]# nova limits
  +------+-----+-------+--------+------+----------------+
  | Verb | URI | Value | Remain | Unit | Next_Available |
  +------+-----+-------+--------+------+----------------+
  +------+-----+-------+--------+------+----------------+
  +--------------------+------+-------+
  | Name               | Used | Max   |
  +--------------------+------+-------+
  | Cores              | -1   | 20    |
  | FloatingIps        | 0    | 10    |
  | ImageMeta          | -    | 128   |
  | Instances          | 0    | 10    |
  | Keypairs           | -    | 100   |
  | Personality        | -    | 5     |
  | Personality Size   | -    | 10240 |
  | RAM                | 0    | 51200 |
  | SecurityGroupRules | -    | 20    |
  | SecurityGroups     | 1    | 10    |
  | Server Meta        | -    | 128   |
  | ServerGroupMembers | -    | 10    |
  | ServerGroups       | 2    | 10    |
  +--------------------+------+-------+

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