a959aa61b4
Contributed by Kai Xie. (cherry picked from commit 188bebbe7eaec71433548dc47f5a9a995cbea15a)
DistCp (distributed copy) is a tool used for large inter/intra-cluster copying. It uses Map/Reduce to effect its distribution, error handling and recovery, and reporting. It expands a list of files and directories into input to map tasks, each of which will copy a partition of the files specified in the source list.