The Task Distribution tab provides a graphical view of the
performance of the Map and Reduce tasks that make up a job.
- To display the task distribution metrics for a job, do one of the following:
- Select a MapReduce job from the Activities list.
- Select a job from the Children tab of a Pig, Hive, or Oozie
activity.
- Click the Task
Distribution tab.
The chart that appears initially shows the distribution
of Map Input Records by Duration; you can change the Y-axis to chart a number of different
metrics.
- Optionally, you can use the Zoom to Duration button to zoom the Time Range
Selector to the exact time range spanned by the activity whose tasks you are
viewing.
