Hadoop is replacing many datawarehousing dbs like netezza, teradata, exadata. In the process, many datwarehousing developers have become hadoop developers, who write sql code; after all, hadoop got a sql interface via hive.
Informatica (another ETL tool) also provides another tool called powerexchange, which automatically generates MR code for hadoop.
Whenever you hear hadoop, first ask yourself whether it is another disguised datawarehousing stuff.
Yes, this is very much happening -- mostly based on the insane pricing difference of supporting Hadoop clusters vs ntz or td infrastructure. Just following a simple 3year lifecycle of HW depreciation essentially boosts your performance for next to nothing. The same cannot be said of the big DWH vendors
Informatica (another ETL tool) also provides another tool called powerexchange, which automatically generates MR code for hadoop.
Whenever you hear hadoop, first ask yourself whether it is another disguised datawarehousing stuff.