How to recover monitor from key-value db store corruption ?

Solution Verified - Updated -

Issue

  • After upgrading cluster from 10.2.10-14 to 12.2.12-77 verion, monitor fail to start.
  • How to recover from leveldb corruption in mon store ?

Environment

  • Red Hat Enterprise Linux 7.x
  • Red Hat Ceph Storage 2.x
  • Red Hat Ceph Storage 3.x

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