Cinder delete fails when volume has snapshots in ceph

Solution In Progress - Updated -

Issue

  • Cinder volume fails to delete using ceph backend.
  • How to remove snapshot form ceph volume
  • cinder volume snapshot ceph
  • cinder ceph snapshot
  • cinder snapshot ceph
  • flatten snapshot
  • ceph parent child relationship
/var/log/cinder/volume.log:2017-01-24 19:22:14.963 30509 ERROR cinder.volume.manager [req-b8784dbe-32ad-45ff-9bdb-f9c7fceff85c OnRamp-1hrnok6unfl9xafp6wk0x1yw277 74ea0b7345574a098be36761dbdffacd - - -] Cannot delete volume 48c82a23-3839-46d0-b25f-344914b9458d: volume is busy

Environment

  • Red Hat OpenStack Platform 10

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