Sangeetha Hariharan created CLOUDSTACK-2139:
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Summary: When VM is live migrated to a different host , stopped
and started , It starts on the original host where it was before live migration.
Key: CLOUDSTACK-2139
URL: https://issues.apache.org/jira/browse/CLOUDSTACK-2139
Project: CloudStack
Issue Type: Bug
Security Level: Public (Anyone can view this level - this is the default.)
Components: Management Server
Affects Versions: 4.2.0
Environment: Build from master
Reporter: Sangeetha Hariharan
Fix For: 4.2.0
When VM is live migrated to a different host , stopped and started , It starts
on the original host where it was before live migration
Steps to reproduce the problem:
Deploy a Vm.
Say it gets deployed on host1 ( in my case host id 9)
Live migrate the Vm to a different host say host2 in the same cluster ( in my
case host id 7).
After live migration , stop this VM.
Start this VM.
We expect the Vm to be started on 7.
Actual Behavior:
Vm is started on 9 , since the "last_host_id" for the Vm still point to "9".
last_host_id did not change when the Vm was migrated and also when the Vm was
stopped.
After deployment succeeds:
mysql> select id, uuid,host_id,last_host_id,state,name from vm_instance where
id in (56) and state not in ("Expunging");
+----+--------------------------------------+---------+--------------+---------+-----------------+
| id | uuid | host_id | last_host_id | state
| name |
+----+--------------------------------------+---------+--------------+---------+-----------------+
| 56 | 0be22ab3-488a-4ab2-95f6-28bbb3f11bb6 | 9 | 9 | Running
| test-vm-migrate |
+----+--------------------------------------+---------+--------------+---------+-----------------+
After vm migration succeeds:
mysql> select id, uuid,host_id,last_host_id,state,name from vm_instance where
id in (56) and state not in ("Expunging");
+----+--------------------------------------+---------+--------------+---------+-----------------+
| id | uuid | host_id | last_host_id | state
| name |
+----+--------------------------------------+---------+--------------+---------+-----------------+
| 56 | 0be22ab3-488a-4ab2-95f6-28bbb3f11bb6 | 7 | 9 | Running
| test-vm-migrate |
+----+--------------------------------------+---------+--------------+---------+-----------------+
1 row in set (0.00 sec)
After vm is stopped:
mysql> select id, uuid,host_id,last_host_id,state,name from vm_instance where
id in (56) and state not in ("Expunging");
+----+--------------------------------------+---------+--------------+---------+-----------------+
| id | uuid | host_id | last_host_id | state
| name |
+----+--------------------------------------+---------+--------------+---------+-----------------+
| 56 | 0be22ab3-488a-4ab2-95f6-28bbb3f11bb6 | NULL | 9 | Stopped
| test-vm-migrate |
+----+--------------------------------------+---------+--------------+---------+-----------------+
1 row in set (0.00 sec)
After vm is started:
mysql> select id, uuid,host_id,last_host_id,state,name from vm_instance where
id in (56) and state not in ("Expunging");
+----+--------------------------------------+---------+--------------+---------+-----------------+
| id | uuid | host_id | last_host_id | state
| name |
+----+--------------------------------------+---------+--------------+---------+-----------------+
| 56 | 0be22ab3-488a-4ab2-95f6-28bbb3f11bb6 | 9 | 9 | Running
| test-vm-migrate |
+----+--------------------------------------+---------+--------------+---------+-----------------+
1 row in set (0.00 sec)
mysql>
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