Is MapReduce faster for any cases? A quick glance at the paper seems to suggest that Spark is always at least as good or better than traditional MR.
Should I ever use traditional MR over Spark?
Should I ever use traditional MR over Spark?
> An exception to this is the Sort workload, for which MapReduce is 2 x faster than Spark. We show that MapReduce’s execution model is more efficient for shuffling data than Spark, thus making Sort run faster on MapRe- duce
http://spark.apache.org/news/spark-wins-daytona-gray-sort-10...