1771af2320
Contributed by Steve Loughran. (cherry picked from commit 7ef4d942dd96232b0743a40ed25f77065254f94d)
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.