Public bug reported:
Description
===========
The configuration: allow_resize_to_same_host=True.
Cold migration fails when the filter only returns the host where the vm is
located and the vm status is set to ERROR.
Steps to reproduce
==================
1、create a vm
2、disable all hosts except the host which the vm is located
3、cold migrate the vm, you can see the exception.UnableToMigrateToSelf in
compute log, and the vm status is set to ERROR while it still running
Expected result
===============
cold migrate failed, and user should see HTTP400 NovaildHost from console
output, because cold migrate to same host is meaningless. The vm status still
keep Active.
Actual result
=============
cold migrate failed, nothing returns from console, and vm status is set to
ERROR.
Environment
===========
nova16.0.4 KVM $ libvirt
Logs & Configs
==============
allow_resize_to_same_host=True
PS:
If the host which the vm located is particularly resource-rich, filters return
this host each time when user executes cold migration. Even if the resources of
other hosts can meet the requirements of the virtual machine, the vm can never
be cold-migrated.
** Affects: nova
Importance: Undecided
Status: New
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Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1748697
Title:
Cold migration fails when the filter only returns the host where the
vm is located and the vm status is set to ERROR
Status in OpenStack Compute (nova):
New
Bug description:
Description
===========
The configuration: allow_resize_to_same_host=True.
Cold migration fails when the filter only returns the host where the vm is
located and the vm status is set to ERROR.
Steps to reproduce
==================
1、create a vm
2、disable all hosts except the host which the vm is located
3、cold migrate the vm, you can see the exception.UnableToMigrateToSelf in
compute log, and the vm status is set to ERROR while it still running
Expected result
===============
cold migrate failed, and user should see HTTP400 NovaildHost from console
output, because cold migrate to same host is meaningless. The vm status still
keep Active.
Actual result
=============
cold migrate failed, nothing returns from console, and vm status is set to
ERROR.
Environment
===========
nova16.0.4 KVM $ libvirt
Logs & Configs
==============
allow_resize_to_same_host=True
PS:
If the host which the vm located is particularly resource-rich, filters
return this host each time when user executes cold migration. Even if the
resources of other hosts can meet the requirements of the virtual machine, the
vm can never be cold-migrated.
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https://bugs.launchpad.net/nova/+bug/1748697/+subscriptions
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