HCatalog graduated from the Apache incubator and merged with the Hive project on March 26, 2013. Hive version 0.11.0 is the first release that includes HCatalog. OverviewHCatalog is a table and storage management layer for Hadoop that enables users with different data processing tools — Pig, MapReduce — to more easily read and write data on the grid. HCatalog’s table abstraction presents users wit