Description
MapFile's constructor should accept a Progressible and pass it down to the underlying SequenceFiles. This permits DFS to signal task progress while writing blocks, and can keep reduce tasks from timing out when block writes are slow.
MapFile's constructor should accept a Progressible and pass it down to the underlying SequenceFiles. This permits DFS to signal task progress while writing blocks, and can keep reduce tasks from timing out when block writes are slow.