> Hello team, > > I have two tables A and B. A has 360Million rows with one column K. B has > around two billion rows with multiple columns including K. > > Both tables are clustered and sorted by K and Bucketed into same number of > buckets. > > When I perform a join, I assumed there won't be any reducers spawned as the > join would happen on map side. But reducers getting spawned. > > Any role for reducers here? Am I missing something?
Sent from my iPhone > On Feb 27, 2015, at 7:32 AM, murali parimi <[email protected]> > wrote: > > Hello team, > > I have two tables A and B. A has 360Million rows with one column K. B has > around two billion rows with multiple columns including K. > > Both tables are clustered and sorted by K and Bucketed into same number of > buckets. > > When I perform a join, I assumed there won't be any reducers spawned as the > join would happen on map side. But reducers getting spawned. > > Any role for reducers here? Am I missing something? > > Sent from my iPhone
