Monitoring and DiagnosticsPDF version

Viewing the Distribution of Task Attempts

The Task Distribution tab provides a graphical view of the performance of the Map and Reduce tasks that make up a job.

  1. 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.
  2. 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.
  3. 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.