I want to partition my data by using R reducer tasks to produce R reduce output files, and each reduce task also writes a binary file for the corresponding partition on DFS. Is there an easy way to generate matching file names for the reduce output and the extra file?
For example: reduce output: part-0 part-1 ... part-<R-1> extra file: file-0 file-1 ... file-<R-1> I can't find how to access task id in reduce. Thanks. --hao
