Are there order guarantee with HBase Scan result

Question

我会问，当我迭代ResultScanner（Scan result）时，行键是否有顺序保证，较小的行键先于较大的行键？

Answer 1

Yes. As per https://hbase.apache.org/book.html#dm.sort :

All data model operations HBase return data in sorted order. First by row, then by ColumnFamily, followed by column qualifier, and finally timestamp (sorted in reverse, so newest records are returned first).