org.apache.hadoop.chukwa.inputtools

Class ChukwaTTInstru

java.lang.Object

TaskTrackerMetricsInst

org.apache.hadoop.chukwa.inputtools.ChukwaTTInstru

public class ChukwaTTInstru
extends TaskTrackerMetricsInst

An instrumentation plugin for Hadoop, to trigger Chukwa-based task logfile collection. WARNING: This code depends on hadoop features only available in 0.19. It won't do any good if you try to use it with an earlier Hadoop.

Constructor Summary

Constructors

Constructor and Description
ChukwaTTInstru(org.apache.hadoop.mapred.TaskTracker t)

Method Summary

Methods

Modifier and Type	Method and Description
void	reportTaskEnd(org.apache.hadoop.mapred.TaskAttemptID taskid)
void	reportTaskLaunch(org.apache.hadoop.mapred.TaskAttemptID taskid, File stdout, File stderr)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ChukwaTTInstru

public ChukwaTTInstru(org.apache.hadoop.mapred.TaskTracker t)

Method Detail

reportTaskLaunch

public void reportTaskLaunch(org.apache.hadoop.mapred.TaskAttemptID taskid,
                    File stdout,
                    File stderr)

reportTaskEnd

public void reportTaskEnd(org.apache.hadoop.mapred.TaskAttemptID taskid)