Tyson Condie and Neil Conway and Peter Alvaro and Joseph M. Hellerstein and Khaled Elmeleegy and Russell Sears EECS Department, University of California, Berkeley Technical Report No. UCB/EECS-2009-136 October 9, 2009 http://www2.eecs.berkeley.edu/Pubs/TechRpts/2009/EECS-2009-136.pdf MapReduce is a popular framework for data-intensive distributed computing of batch jobs. To simplify fault toleranc