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[Barry Price <1849802@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Operating system distribution and version: Ubuntu 18.04

Neutron package version: 2:14.0.2-0ubuntu1~cloud0
Nova package version: 2:19.0.1-0ubuntu2.1~cloud0

Cloud was deploying (using Juju charms) as rocky, then upgraded to
stein.

There are a number of instances that I need to migrate from one compute
node to another, but:

$ openstack server migrate --block-migration 8703d9db-81b0-4e86-a2ef-c4ba5250556c --live shinx --disk-overcommit
Migration pre-check error: Binding failed for port 5a3c5d23-8727-47d2-af72-a53b495358d2, please check neutron logs for more information. (HTTP 400) (Request-ID: req-7c41ae70-6f5b-48a8-9d09-add2bbbe2b7e)
$ 

However, even with debug logging enabled, all that shows up in the
neutron-api logs is:

2019-10-25 09:34:12.147 1569534 INFO neutron.wsgi [req-
ac358ed5-cfec-4618-b765-f2defd5a3aac 92e98c5c687a46d29ec28aca3025f3da
7555fff7e7eb4a0eb28149905b266a2b - 207337407e3647798c0f68a0a28a0f8b
207337407e3647798c0f68a0a28a0f8b] 10.x.y.z,127.0.0.1 "POST
/v2.0/ports/5a3c5d23-8727-47d2-af72-a53b495358d2/bindings HTTP/1.1"
status: 409  len: 371 time: 0.1632745

Which suggests that for some reason, the API call to retrieve port
bindings is failing, but there's no further information in the logs for
me to debug exactly why.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1849802

Title:
  Live-migration fails without a logged root cause

Status in OpenStack Compute (nova):
  New

Bug description:
  Operating system distribution and version: Ubuntu 18.04

  Neutron package version: 2:14.0.2-0ubuntu1~cloud0
  Nova package version: 2:19.0.1-0ubuntu2.1~cloud0

  Cloud was deploying (using Juju charms) as rocky, then upgraded to
  stein.

  There are a number of instances that I need to migrate from one
  compute node to another, but:

  $ openstack server migrate --block-migration 8703d9db-81b0-4e86-a2ef-c4ba5250556c --live shinx --disk-overcommit
  Migration pre-check error: Binding failed for port 5a3c5d23-8727-47d2-af72-a53b495358d2, please check neutron logs for more information. (HTTP 400) (Request-ID: req-7c41ae70-6f5b-48a8-9d09-add2bbbe2b7e)
  $ 

  However, even with debug logging enabled, all that shows up in the
  neutron-api logs is:

  2019-10-25 09:34:12.147 1569534 INFO neutron.wsgi [req-
  ac358ed5-cfec-4618-b765-f2defd5a3aac 92e98c5c687a46d29ec28aca3025f3da
  7555fff7e7eb4a0eb28149905b266a2b - 207337407e3647798c0f68a0a28a0f8b
  207337407e3647798c0f68a0a28a0f8b] 10.x.y.z,127.0.0.1 "POST
  /v2.0/ports/5a3c5d23-8727-47d2-af72-a53b495358d2/bindings HTTP/1.1"
  status: 409  len: 371 time: 0.1632745

  Which suggests that for some reason, the API call to retrieve port
  bindings is failing, but there's no further information in the logs
  for me to debug exactly why.

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