A number of people have made substantial contributions to the continued development and improvement of MapReduce, including Tom Annau, Matt Austern, Chris Colohan, Frank Dabek, Walt Drummond, Xianping Ge, Victoria Gilbert, Shan Lei, Josh Levenberg, Nahush Mahajan, Greg Malewicz, Russell Power, Will Robinson, Ioannis Tsoukalidis, and Jerry Zhao. MapReduce builds on a number of pieces of infrastructure developed at Google, including the Google File System and our cluster scheduling system. We would like to especially thank the developers of those systems. Finally, we thank all the users of Map-Reduce within Google's engineering organization for providing helpful feedback, suggestions, and bug reports.