1. HFile: A Block-Indexed File Format to Store Sorted Key-Value Pairs Sep 10, 2009 Schubert Zhang (schubert.zhang@gmail.com) http://cloudepr.blogspot.com 1. Introduction HFile is a mimic of Google’s SSTable. Now, it is available in Hadoop HBase-0.20.0. And the previous releases of HBase temporarily use an alternate file format – MapFile[4], which is a common file format in Hadoop IO package. I thi