Why PGs go into inconsistent state after deleting rbd snapshot in RHCS ?

Solution Verified - Updated -

Issue

  • Many PGs getting into inconsistent state after deleting snapshot for large rbd image.
  • Some PGs reporting scrubbing error scrub xx.x xx:aaaabbbb:::rbd_data.123456789abcde.000000000011111111:28 is an unexpected clone

Environment

  • Red Hat Enterprise Linux 7.x
  • Red Hat Ceph Storage 3.x

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