Volume created from snapshot can not be migrated/retyped to different backend after snapshot got deleted

Solution In Progress - Updated -

Issue

Right now we have the following documented limitation related to Migrate volumes

Migrating volumes that have snapshots are currently not allowed.

But when we:

  1. Create volume
  2. Create snapshot from volume
  3. Create volume from the snapshot
  4. Delete snapshot
  5. Re-type newly created volume (from the snapshot) which includes storage migration

It fails with:

2017-05-29 03:39:38.413 4196 ERROR cinder.volume.manager SnapshotNotFound: Snapshot 48cf30e7-942a-4c99-a432-cb09a6334d1c could not be found.

Environment

  • Red Hat OpenStack Platform 10.0

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