anchor.diff:  
       %% Execute to diagnose data
       timer:sleep(3000),
  +    ok = delete_metadata(101),
       ok = leo_compact_fsm_controller:recover_metadata(),
       ok = check_status(),
   
  
positive.code: 
  
  %% @private
  check_metadata(0) ->
      ok;
  check_metadata(Index) ->
  
negative.code:              ok
       end,
       [
        {"test recovery",
         {timeout, 1000, fun recover/0}}
       ]}.
  
  