Hi Mark, I think http://wiki.apache.org/hadoop/HowManyMapsAndReduces might interest you. If you require more information, feel free to ask after reading it.
Regards Bertrand On Fri, Oct 26, 2012 at 10:47 PM, Mark Olimpiati <markq2...@gmail.com>wrote: > Hi, > > I've found that the solution to control the split size per mapper is to > modify the following configurations: > > mapred.min.split.size and mapred.max.split.size, but when I set them both > to 14MB with dfs.block.size = 64MB, the splits are still = 64MB. > > So, is there a relation between them that I should consider? > > Thank you, > Mark > -- Bertrand Dechoux