Reynold Xin created SPARK-2017:
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             Summary: web ui stage page becomes unresponsive when the number of 
tasks is large
                 Key: SPARK-2017
                 URL: https://issues.apache.org/jira/browse/SPARK-2017
             Project: Spark
          Issue Type: Sub-task
            Reporter: Reynold Xin


{code}
sc.parallelize(1 to 1000000, 1000000).count()
{code}

The above code creates one million tasks to be executed. The stage detail web 
ui page takes forever to load (if it ever completes).

There are again a few different alternatives:

0. Limit the number of tasks we show.
1. Pagination
2. By default only show the aggregate metrics and failed tasks, and hide the 
successful ones.






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