[HIVE-1295] facilitate HBase bulk loads from Hive

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.6.0
• Fix Version/s: 0.6.0
• Component/s: HBase Handler
• Hadoop Flags: Reviewed
• Assignee: John Sichi
• Reporter: John Sichi
• Created: 08/Apr/10 21:54
• Updated: 17/Dec/11 00:03
• Resolved: 14/Apr/10 17:04

Description

HBase supports a bulk load procedure:

http://hadoop.apache.org/hbase/docs/r0.20.2/api/org/apache/hadoop/hbase/mapreduce/package-summary.html#bulk

We would like to add support to Hive so that users can bulk load HBase from Hive without having to write any map/reduce code.

Ideally, this could be done with a single INSERT statement targeting the HBase storage handler (with an option set to request bulk load instead of row-level inserts).

However, that will take a lot of work, so this JIRA is a first step to allow the bulk load files to be prepared inside of Hive via a sequence of SQL statements and then pushed into HBase via the loadtable.rb script.

Note that until HBASE-1861 is implemented, the bulk load target table can only have a single column family.

Issue Links

• is related to: HIVE-1321 bugs with temp directories, trailing blank fields in HBase bulk load
• is related to: HIVE-2365 SQL support for bulk load into HBase