Closing, as per comment #3.
** Also affects: nova/pike
Importance: Undecided
Status: New
** Changed in: nova/pike
Status: New => Fix Released
** Changed in: nova
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1791224
Title:
Live migration failed when the instance is booted with volume and
config drive
Status in OpenStack Compute (nova):
Fix Released
Status in OpenStack Compute (nova) pike series:
Fix Released
Bug description:
Description
===========
Volume-backed instances fails to live-migrate when config-drive is enabled,
the config drive uses iso9660 format. When the instance booted from volume, the
libvirt raised an exception: pre-creation of storage targets for incremental
storage migration is not supported. In live-migration process, nova considers
this instance to live-migrate with block-migrate, but the config drive is
copied from source host to dest host in live-migration, and no local disk to
migrated by libvirt, so libvirt raised this exception. I think this is a bug.
If there is no local disk to migrate by libvirt, we shouldn't use block-migrate.
Steps to reproduce
==================
1. Boot a instance with volume and configdrive.
2. Live-migrate the instance with block-migrate=auto
Expected result
===============
The instance live-migrate successfully.
Actual result
=============
The instance failed to live-migrate, and livrit raised an exception. The
message is pre-creation of storage targets for incremental storage migration is
not supported.
Environment
===========
Openstack verison: Pike
Livirt version: 3.2.0
Qemu version: 2.9.0
In nova.conf
[libvirt]
images_type = raw
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