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Posted to issues@spark.apache.org by "Kay Ousterhout (JIRA)" <ji...@apache.org> on 2014/05/29 21:23:09 UTC

[jira] [Created] (SPARK-1965) Spark UI throws NPE on trying to load the app page for non-existent app

Kay Ousterhout created SPARK-1965:
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             Summary: Spark UI throws NPE on trying to load the app page for non-existent app
                 Key: SPARK-1965
                 URL: https://issues.apache.org/jira/browse/SPARK-1965
             Project: Spark
          Issue Type: Bug
          Components: Web UI
    Affects Versions: 1.0.0
            Reporter: Kay Ousterhout
            Priority: Minor


If you try to load the Spark UI for an application that doesn't exist:

sparkHost:8080/app/?appId=foobar

The UI throws a NPE.  The problem is in ApplicationPage.scala -- Spark proceeds even if the "app" variable is null.  We should handle this more gracefully.



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