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[stgleb <gstepanov@xxxxxxxxxxxx>]

I've checked your bug. So you have user True live migration using shared storage.
This type of live migration is made instantly without copying any data( from libvirt view) so
DomainJobInfo has info about memory proceed equal to 0.
If you try block live migration
nova live-migration <instance> <destination> --block-migrate
and look to database you will see that all data persisted correctly.


** Changed in: nova
       Status: In Progress => Invalid

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https://bugs.launchpad.net/bugs/1553011

Title:
  total_memory in migration-list is 0 while live-migration

Status in OpenStack Compute (nova):
  Invalid

Bug description:
  1: Nova api microversion v2.25

  2: This is the log of source compute node:

  2016-03-04 02:25:44.598 INFO nova.virt.libvirt.driver [req-baf2d5a5-1e19-4f78-b38b-ef6ae67ae3f3 admin admin] [instance: d514ae11-3118-4adf-ab6d-9bc437173de3] Increasing downtime to 46 ms after 0 sec elapsed time
  2016-03-04 02:25:44.930 INFO nova.virt.libvirt.driver [req-baf2d5a5-1e19-4f78-b38b-ef6ae67ae3f3 admin admin] [instance: d514ae11-3118-4adf-ab6d-9bc437173de3] Migration running for 0 secs, memory 100% remaining; (bytes processed=0, remaining=0, total=0) <============================

  ....

  
  2016-03-04 02:25:48.084 DEBUG nova.virt.libvirt.host [req-baf2d5a5-1e19-4f78-b38b-ef6ae67ae3f3 admin admin] Domain has shutdown/gone away: Requested operation is not valid: domain is not running from (pid=5066) for_domain /opt/stack/nova/nova/virt/libvirt/host.py:180
  2016-03-04 02:25:48.086 INFO nova.virt.libvirt.driver [req-baf2d5a5-1e19-4f78-b38b-ef6ae67ae3f3 admin admin] [instance: d514ae11-3118-4adf-ab6d-9bc437173de3] Migration operation has completed

  
  3 steps:
  3.1 create an instance 
  3.2 nova --debug --os-compute-api-version 2.25 live-migration test2
  3.3 nova --debug --os-compute-api-version 2.25 server-migration-list test2

  +----+-------------+-----------+----------------+--------------+-----------+---------+--------------------------------------+----------------------------+----------------------------+--------------------+------------------------+------------------------+------------------+----------------------+----------------------+
  | Id | Source Node | Dest Node | Source Compute | Dest Compute | Dest Host | Status  | Server UUID                          | Created At                 | Updated At                 | Total Memory Bytes | Processed Memory Bytes | Remaining Memory Bytes | Total Disk Bytes | Processed Disk Bytes | Remaining Disk Bytes |
  +----+-------------+-----------+----------------+--------------+-----------+---------+--------------------------------------+----------------------------+----------------------------+--------------------+------------------------+------------------------+------------------+----------------------+----------------------+
  | 41 | -           | -         | lm-2           | lm-1         | -         | running | d514ae11-3118-4adf-ab6d-9bc437173de3 | 2016-03-04T02:09:26.000000 | 2016-03-04T02:09:40.000000 | 0                  | 0                      | 0                      | 0                | 0                    | 0                    |
  +----+-------------+-----------+----------------+--------------+-----------+---------+--------------------------------------+----------------------------+----------------------------+--------------------+------------------------+------------------------+------------------+----------------------+----------------------+

  see from nova table:

  mysql> select * from migrations where id=41;
  +---------------------+---------------------+------------+----+----------------+--------------+-----------+-----------+--------------------------------------+----------------------+----------------------+-------------+-----------+---------+----------------+--------+--------------+------------------+------------------+------------+----------------+----------------+
  | created_at          | updated_at          | deleted_at | id | source_compute | dest_compute | dest_host | status    | instance_uuid                        | old_instance_type_id | new_instance_type_id | source_node | dest_node | deleted | migration_type | hidden | memory_total | memory_processed | memory_remaining | disk_total | disk_processed | disk_remaining |
  +---------------------+---------------------+------------+----+----------------+--------------+-----------+-----------+--------------------------------------+----------------------+----------------------+-------------+-----------+---------+----------------+--------+--------------+------------------+------------------+------------+----------------+----------------+
  | 2016-03-04 02:09:26 | 2016-03-04 02:09:50 | NULL       | 41 | lm-2           | lm-1         | NULL      | completed | d514ae11-3118-4adf-ab6d-9bc437173de3 |                    2 |                    2 | NULL        | NULL      |       0 | live-migration |      0 |            0 |                0 |                0 |          0 |              0 |              0 |
  +---------------------+---------------------+------------+----+----------------+--------------+-----------+-----------+--------------------------------------+----------------------+----------------------+-------------+-----------+---------+----------------+--------+--------------+------------------+------------------+------------+----------------+----------------+
  1 row in set (0.00 sec)

  Expected result:
  * Total Memory Bytes should not 0
  * Processed Memory Bytes  should be equal Total Memory Bytes  after migration finished.

  Actual result:
  * Total Memory Bytes is 0
  * Processed Memory Bytes is 0

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