@Override
    public void prepareMiniBatchOperations(MiniBatchOperationInProgress<Mutation> miniBatchOp,
      long timestamp, final List<RowLock> acquiredRowLocks) throws IOException {
      visitBatchOperations(true, miniBatchOp.getLastIndexExclusive(), (int index) -> {
        // update cell count
        for (List<Cell> cells : getMutation(index).getFamilyCellMap().values()) {
          miniBatchOp.addCellCount(cells.size());
        }
        return true;
      });
    }
During replay, there could exist column families which are removed between region server
failure and replay
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java