How to compact OSD large omap having rocksdb as a backend keystore in RHCS ?

Solution Verified - Updated -

Issue

  • Ceph OSD having too large OMAP directory and needs rocksdb compaction.
  • Why Ceph OSD is not responding and unresponsive due to rocksdb transactions ?

Environment

  • Red Hat Enterprise Linux 7.x
  • Red Hat Ceph Storge 2.4 and above
  • Red Hat Ceph Storage 3.x

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