Comment 3 for bug 1442098

The bug is reproduced.

It's correct for using RESTFUL API.
+--------------------------------------+-------------------+--------------------+------------------------------------------------------------------------------------+----------+
| Id | Name | Policies | Members | Metadata |
+--------------------------------------+-------------------+--------------------+------------------------------------------------------------------------------------+----------+
| 211a62d0-de78-4311-8250-c014fed46f0e | antiaffinitygroup | [u'anti-affinity'] | [u'5c37820b-d9e5-49b6-ad3c-9845f1667224', u'd1da3837-a5c5-45a4-8b2b-bc53559fcc8e'] | {} |
+--------------------------------------+-------------------+--------------------+------------------------------------------------------------------------------------+----------+
[tecs@tecs nova(keystone_admin)]$
[tecs@tecs nova(keystone_admin)]$
[tecs@tecs nova(keystone_admin)]$
[tecs@tecs nova(keystone_admin)]$ nova list
+--------------------------------------+-------+--------+------------+-------------+----------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+-------+--------+------------+-------------+----------+
| 7c32f761-3f49-46b5-86c6-1cbfe8a4e0d5 | test | ERROR | - | NOSTATE | |
| 1964dae7-89bb-45d4-af90-ddba48c135a7 | test2 | ERROR | - | NOSTATE | |
| 5c37820b-d9e5-49b6-ad3c-9845f1667224 | test2 | ERROR | - | NOSTATE | |
| d1da3837-a5c5-45a4-8b2b-bc53559fcc8e | test2 | ERROR | - | NOSTATE | |
+--------------------------------------+-------+--------+------------+-------------+----------+
[tecs@tecs nova(keystone_admin)]$
[tecs@tecs nova(keystone_admin)]$
[tecs@tecs nova(keystone_admin)]$
[tecs@tecs nova(keystone_admin)]$ nova delete 7c32f761-3f49-46b5-86c6-1cbfe8a4e0d5
Request to delete server 7c32f761-3f49-46b5-86c6-1cbfe8a4e0d5 has been accepted.
[tecs@tecs nova(keystone_admin)]$ nova delete 1964dae7-89bb-45d4-af90-ddba48c135a7
Request to delete server 1964dae7-89bb-45d4-af90-ddba48c135a7 has been accepted.
[tecs@tecs nova(keystone_admin)]$
[tecs@tecs nova(keystone_admin)]$
[tecs@tecs nova(keystone_admin)]$ nova list
+--------------------------------------+-------+--------+------------+-------------+----------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+-------+--------+------------+-------------+----------+
| 5c37820b-d9e5-49b6-ad3c-9845f1667224 | test2 | ERROR | - | NOSTATE | |
| d1da3837-a5c5-45a4-8b2b-bc53559fcc8e | test2 | ERROR | - | NOSTATE | |
+--------------------------------------+-------+--------+------------+-------------+----------+
[tecs@tecs nova(keystone_admin)]$
[tecs@tecs nova(keystone_admin)]$
[tecs@tecs nova(keystone_admin)]$ nova server-group-list
+--------------------------------------+-------------------+--------------------+------------------------------------------------------------------------------------+----------+
| Id | Name | Policies | Members | Metadata |
+--------------------------------------+-------------------+--------------------+------------------------------------------------------------------------------------+----------+
| 211a62d0-de78-4311-8250-c014fed46f0e | antiaffinitygroup | [u'anti-affinity'] | [u'5c37820b-d9e5-49b6-ad3c-9845f1667224', u'd1da3837-a5c5-45a4-8b2b-bc53559fcc8e'] | {} |
+--------------------------------------+-------------------+--------------------+------------------------------------------------------------------------------------+----------+

But the instance is not deleted in ins--------------+--------------------------------------+----------------------------------+
| instance_groups_created_at | instance_groups_updated_at | instance_groups_deleted_at | instance_groups_deleted | instance_groups_id | instance_groups_user_id | instance_groups_project_id | instance_groups_uuid | instance_groups_name | instance_group_policy_1_created_at | instance_group_policy_1_updated_at | instance_group_policy_1_deleted_at | instance_group_policy_1_deleted | instance_group_policy_1_id | instance_group_policy_1_policy | instance_group_policy_1_group_id | instance_group_member_1_created_at | instance_group_member_1_updated_at | instance_group_member_1_deleted_at | instance_group_member_1_deleted | instance_group_member_1_id | instance_group_member_1_instance_id | instance_group_member_1_group_id |
+----------------------------+----------------------------+----------------------------+-------------------------+--------------------+----------------------------------+----------------------------------+--------------------------------------+----------------------+------------------------------------+------------------------------------+------------------------------------+---------------------------------+----------------------------+--------------------------------+----------------------------------+------------------------------------+------------------------------------+------------------------------------+---------------------------------+----------------------------+--------------------------------------+----------------------------------+
| 2016-03-07 03:59:48 | NULL | NULL | 0 | 1 | 9dea1e0c8b36490f976d4164f5b1d4d2 | 83db410d8acb493eb460c06944e5d030 | 211a62d0-de78-4311-8250-c014fed46f0e | antiaffinitygroup | 2016-03-07 03:59:48 | NULL | NULL | 0 | 1 | anti-affinity | 1 | 2016-03-07 06:10:59 | NULL | NULL | 0 | 1 | 7c32f761-3f49-46b5-86c6-1cbfe8a4e0d5 | 1 |
| 2016-03-07 03:59:48 | NULL | NULL | 0 | 1 | 9dea1e0c8b36490f976d4164f5b1d4d2 | 83db410d8acb493eb460c06944e5d030 | 211a62d0-de78-4311-8250-c014fed46f0e | antiaffinitygroup | 2016-03-07 03:59:48 | NULL | NULL | 0 | 1 | anti-affinity | 1 | 2016-03-07 06:11:38 | NULL | NULL | 0 | 2 | 1964dae7-89bb-45d4-af90-ddba48c135a7 | 1 |
| 2016-03-07 03:59:48 | NULL | NULL | 0 | 1 | 9dea1e0c8b36490f976d4164f5b1d4d2 | 83db410d8acb493eb460c06944e5d030 | 211a62d0-de78-4311-8250-c014fed46f0e | antiaffinitygroup | 2016-03-07 03:59:48 | NULL | NULL | 0 | 1 | anti-affinity | 1 | 2016-03-07 06:20:02 | NULL | NULL | 0 | 3 | d1da3837-a5c5-45a4-8b2b-bc53559fcc8e | 1 |
| 2016-03-07 03:59:48 | NULL | NULL | 0 | 1 | 9dea1e0c8b36490f976d4164f5b1d4d2 | 83db410d8acb493eb460c06944e5d030 | 211a62d0-de78-4311-8250-c014fed46f0e | antiaffinitygroup | 2016-03-07 03:59:48 | NULL | NULL | 0 | 1 | anti-affinity | 1 | 2016-03-07 06:20:17 | NULL | NULL | 0 | 4 | 5c37820b-d9e5-49b6-ad3c-9845f1667224 | 1 |
+----------------------------+----------------------------+----------------------------+-------------------------+--------------------+----------------------------------+----------------------------------+--------------------------------------+----------------------+------------------------------------+------------------------------------+------------------------------------+---------------------------------+----------------------------+--------------------------------+----------------------------------+------------------------------------+------------------------------------+------------------------------------+---------------------------------+----------------------------+--------------------------------------+----------------------------------+
4 rows in set (0.00 sec)

mysql> tance_group_member table.