[jira] [Created] (SPARK-12186) stage web URI will redirect to the wrong location if it is the first URI from the application to be requested from the history server

["Rohit Agarwal (JIRA)" <ji...@apache.org>]

Rohit Agarwal created SPARK-12186:
-------------------------------------

             Summary: stage web URI will redirect to the wrong location if it is the first URI from the application to be requested from the history server
                 Key: SPARK-12186
                 URL: https://issues.apache.org/jira/browse/SPARK-12186
             Project: Spark
          Issue Type: Bug
          Components: Web UI
    Affects Versions: 1.5.1
            Reporter: Rohit Agarwal
            Priority: Minor


In the history server when we open an application link for the first time, it loads the app and registers the app UI and sends a redirect to the URI that was requested.

The code to send the redirect is:
{{res.sendRedirect(res.encodeRedirectURL(req.getRequestURI()))}}

However {{req.getRequestURI()}} is not the complete URI that was requested, it doesn't contain the query string.

Stage URIs are of the following form:
http://localhost:18080/history/application_1449188824095_0001/stages/stage/?id=0&attempt=0

When such a URI is *the first URI from the application to be requested*, it redirects to a URI like:
http://localhost:18080/history/application_1449188824095_0001/stages/stage/

which errors with
{code}
HTTP ERROR 400

Problem accessing /history/application_1449188824095_0001/stages/stage/. Reason:

    requirement failed: Missing id parameter

Powered by Jetty://
{code}

This is not a frequent occurrence because you usually navigate to the stage URI after you have navigated to some other URI belonging to the application and then this will not happen, only when the stage URI is the first URI from the application to be requested from the history server will you see this issue.



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