** Also affects: nova/train
Importance: Undecided
Status: New
** Changed in: nova/train
Importance: Undecided => Low
** Changed in: nova/train
Status: New => In Progress
** Changed in: nova/train
Assignee: (unassigned) => Matt Riedemann (mriedem)
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https://bugs.launchpad.net/bugs/1551703
Title:
Resize a vm that vm_state is "stopped" failure， vm's task_state
rollback to "active"
Status in OpenStack Compute (nova):
Fix Released
Status in OpenStack Compute (nova) train series:
In Progress
Bug description:
1. version
kilo 2015.1.0
2. Reproduce steps
2.1 create a instance, then stop it.
[root@SBCJNailSlot3 ~(keystone_admin)]# nova list
+--------------------------------------+--------+---------+--------------+-------------+-------------------+
| ID | Name | Status | Task State |
Power State | Networks |
+--------------------------------------+--------+---------+--------------+-------------+-------------------+
| 6fe59445-fb89-47ab-9ead-2476c4522a61 | njq | SHUTOFF | - |
Shutdown | test=192.168.1.52 |
+--------------------------------------+--------+---------+--------------+-------------+-------------------+
2.2 resize the instance use a new flavor which it's disk less than current
flavor's disk
[root@SBCJNailSlot3 ~(keystone_admin)]# nova resize
6fe59445-fb89-47ab-9ead-2476c4522a61 45
disk value in the current flavor of instance “njq” is 20
disk value in the flavor which id equal 45 is 18.
So this resize action will trigger ResizeError that msg is unable to resize
disk down.
Then enter the rollback process
2.3 rollback result：
[root@SBCJNailSlot3 ~(keystone_admin)]# nova list
+--------------------------------------+--------+---------+--------------+-------------+-------------------+
| ID | Name | Status | Task State |
Power State | Networks |
+--------------------------------------+--------+---------+--------------+-------------+-------------------+
| 6fe59445-fb89-47ab-9ead-2476c4522a61 | njq | ACTIVE | - |
Shutdown | test=192.168.1.52 |
+--------------------------------------+--------+---------+--------------+-------------+-------------------+
Although the finally vm_state of instance will be set to stoped by
heal_instance_state.
But the process often takes some time.
IMO， This process is not reasonable, and need fix.
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