Instance action event for live-migration is missing

[Zhenyu Zheng]

We have the instance action and action event for most of the instance
operations, exclude: live-migration. In the current master code, when
we do live-migration, the instance action is recorded, but the action
event for live-migration is lost.

Version: Master

Bug Details:

Migrate the server:

root@controller:/var/log/nova# nova list
+--------------------------------------+------+-----------+------------+-------------+---------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+------+-----------+------------+-------------+---------------------------+
| f4070134-f9f0-4314-951c-80b9c7e80499 | test | MIGRATING | migrating | Running | internal-net=10.10.10.187 |
+--------------------------------------+------+-----------+------------+-------------+---------------------------+
root@controller:/var/log/nova# nova list
+--------------------------------------+------+--------+------------+-------------+---------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+------+--------+------------+-------------+---------------------------+
| f4070134-f9f0-4314-951c-80b9c7e80499 | test | ACTIVE | - | Running | internal-net=10.10.10.187 |
+--------------------------------------+------+--------+------------+-------------+---------------------------+

After Live-Migrate, the instance action has been recorded but the action event is missing:
root@controller:/var/log/nova# nova instance-action-list f4070134-f9f0-4314-951c-80b9c7e80499
+----------------+------------------------------------------+---------+----------------------------+
| Action | Request_ID | Message | Start_Time |
+----------------+------------------------------------------+---------+----------------------------+
| create | req-789a1956-11a0-4a1b-9063-7adf0ed51f3b | - | 2015-06-24T07:57:02.000000 |
| live-migration | req-e76f2a5e-79f8-4879-8e41-249ea574aeff | - | 2015-06-24T08:20:40.000000 |
+----------------+------------------------------------------+---------+----------------------------+
root@controller:/var/log/nova# nova instance-action f4070134-f9f0-4314-951c-80b9c7e80499 req-e76f2a5e-79f8-4879-8e41-249ea574aeff
+---------------+------------------------------------------+
| Property | Value |
+---------------+------------------------------------------+
| action | live-migration |
| events | [] |
| instance_uuid | f4070134-f9f0-4314-951c-80b9c7e80499 |
| message | - |
| project_id | 522eda8d23124b25bf03fe44f1986b74 |
| request_id | req-e76f2a5e-79f8-4879-8e41-249ea574aeff |
| start_time | 2015-06-24T08:20:40.000000 |
| user_id | 3917d63e5a2943319fdaebd80fb8b4f2 |
+---------------+------------------------------------------+

[Markus Zoeller (markus_z) (mzoeller)]

@Zhenyu Zheng (zhengzhenyu):

Since you are set as assignee, I switch the status to "In Progress".

Maybe it would be good to have more details about where this event gets lost.

[Zhenyu Zheng (zhengzhenyu)]

@Markus Zoeller, Hi, thank you, I'm setting up the dev environment for details.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/195372
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=958060f99293a7a4b9c4dc7eba495b64cf3a09c4
Submitter: Jenkins
Branch: master

commit 958060f99293a7a4b9c4dc7eba495b64cf3a09c4
Author: Kevin_Zheng <email address hidden>
Date: Thu Jun 25 09:40:52 2015 +0800

    Add instance action events for live migration

    Instance action events records are missing for live-migration.
    This patch fix it.

    Change-Id: Ia9c46e19e643f5f70da1c7221a1099f322c4c6ed
    Closes-Bug:1468212