unnecessary inst_base was created

[fupingxie]

Description
===========
When migrating to other hosts, if inst_base is on shared storage, it will recreate inst_base after moving inst_base to inst_base_resize. But rbd backend is treated as shared storage too, it will create inst_base on source host also. In this situation, even if the resize finished, the inst_base on source host will still exist. This wll trigger errors when live-migration to the source host.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/605590

[Matt Riedemann (mriedem)]

> This wll trigger errors when live-migration to the source host.

Can you be more specific about what errors occur with live migration if we don't fix this during resize?

[OpenStack Infra (hudson-openstack)]

Change abandoned by Matt Riedemann (<email address hidden>) on branch: master
Review: https://review.opendev.org/605590
Reason: I have a feeling this might already be fixed by now but would need to dig into it or try to recreate the bug on master. Either way it looks like this change is abandoned.

[Matt Riedemann (mriedem)]

I think this may have been fixed with https://review.opendev.org/#/c/566367/.