spilledRecordsCounter, reduceCombineInputCounter,
shuffledMapsCounter,
reduceShuffleBytes, failedShuffleCounter,
mergedMapOutputsCounter,
taskStatus, copyPhase, sortPhase, this);
rIter = shuffle.run();
} else {
final FileSystem rfs = FileSystem.getLocal(job).getRaw();
rIter = Merger.merge(job, rfs, job.getMapOutputKeyClass(),
job.getMapOutputValueClass(), codec,
getMapFiles(rfs, true),