[HBASE-4587] HBase MR support for multiple tables as input

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 0.90.3
• Component/s: mapreduce
• Assignee: Unassigned
• Reporter: Rajeev Rao
• Created: 13/Oct/11 20:07
• Updated: 12/Jun/22 19:37
• Resolved: 16/Nov/16 20:59

Description

Some requirements:

• Being able to have multiple tables as your input path
• Being able to filter on specific columns/column families
• Providing the source location (table/row/column) to the results
• Multiple clusters
• Different schemas.

Overall this seems difficult for now so I am going to punt on it. On the other hand it would be easy enough to write all of the MR values into an intermediate table and then work from there.