@Override public String toString() {
return getClass().getSimpleName() + "(" + mrJobId + ")";
}
@Override public Value<Void> run(ShuffleResult<K, V, O> shuffleResult) {
futureCall(new DeleteFilesJob("" + this),
immediate(shuffleResult.getReducerInputFiles()),
Util.jobSettings(settings));
return immediate(null);
}