Review Board 1.7.22

HBASE-3996 Support multiple tables and scanners as input to the mapper in map/reduce jobs

Review Request #4411 - Created March 20, 2012 and updated

Ted Yu
It seems that in many cases feeding data from multiple tables or multiple scanners on a single table can save a lot of time when running map/reduce jobs.
A new MultiTableInputFormat class would allow doing this. is added
Review request changed
Updated (March 28, 2012, 6:07 p.m.)
Same patch v7 with new white spaces removed.

TestMultiTableInputFormat passes.
Ship it!
Posted (Dec. 25, 2012, 1:01 p.m.)
Ship It!