.withIncludesTags(useTags)
.withHBaseCheckSum(true).build();
HFileBlock.FSReader blockReader =
new HFileBlock.FSReaderV2(fsdis, fileSize, meta);
// Comparator class name is stored in the trailer in version 2.
KVComparator comparator = trailer.createComparator();
HFileBlockIndex.BlockIndexReader dataBlockIndexReader =
new HFileBlockIndex.BlockIndexReader(comparator,
trailer.getNumDataIndexLevels());
HFileBlockIndex.BlockIndexReader metaBlockIndexReader =
new HFileBlockIndex.BlockIndexReader(