2018-06-19T13:18:38.428+0530 I STORAGE  [initandlisten] repairDatabase pdg_db
2018-06-19T13:18:38.428+0530 I STORAGE  [initandlisten] Repairing collection ipd_db.app_sessions
2018-06-19T13:18:38.428+0530 I STORAGE  [initandlisten] Verify failed on uri table:collection-1--4208304830224804148. Running a salvage operation.
2018-06-19T13:18:38.428+0530 F -        [initandlisten] Invariant failure rs.get() src/mongo/db/catalog/database_impl.cpp 226