org.apache.hadoop.mapreduce.task.reduce

Interface ShuffleScheduler<K,V>

All Known Implementing Classes:

ShuffleSchedulerImpl

@InterfaceAudience.Private
@InterfaceStability.Unstable
public interface ShuffleScheduler<K,V>

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
void	resolve(TaskCompletionEvent tce) Interpret a TaskCompletionEvent from the event stream.
boolean	waitUntilDone(int millis) Wait until the shuffle finishes or until the timeout.

Method Detail

waitUntilDone

boolean waitUntilDone(int millis)
                      throws InterruptedException

Wait until the shuffle finishes or until the timeout.

Parameters:

millis - maximum wait time

Returns:

true if the shuffle is done

Throws:

InterruptedException

resolve

void resolve(TaskCompletionEvent tce)
             throws IOException,
                    InterruptedException

Interpret a TaskCompletionEvent from the event stream.

Parameters:

tce - Intermediate output metadata

Throws:

IOException

InterruptedException

close

void close()
           throws InterruptedException

Throws:

InterruptedException