Mark Khaitman created SPARK-5899:
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             Summary: Viewing specific stage information which contains 
thousands of tasks will freak out the driver and CPU cores from where it runs
                 Key: SPARK-5899
                 URL: https://issues.apache.org/jira/browse/SPARK-5899
             Project: Spark
          Issue Type: Bug
          Components: Web UI
    Affects Versions: 1.2.1, 1.3.0
         Environment: CentOS 7, Spark Standalone
            Reporter: Mark Khaitman
            Priority: Critical


If a user ever tries to view specific stage stats, for example, a repartition 
stage which involves 30000 partitions, the Web UI attempts to load every single 
task result onto a single webpage, which is completely destroying CPU usage on 
the driver, which subsequently causes the remaining tasks / jobs to be nearly 
impossible to complete. 

Ideally the task results should be paged (if not too much trouble) to prevent 
this from happening.



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