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From "Gera Shegalov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-6316) Task Attempt List entries should link to the task overview
Date Tue, 16 Jun 2015 05:56:01 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6316?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gera Shegalov updated MAPREDUCE-6316:
-------------------------------------
    Status: Open  (was: Patch Available)

A problem occurs when you access http://rmhost:rmport/proxy/application_1434432414806_0003/mapreduce/attempts/job_1434432414806_0003/m/RUNNING

{code}
2015-06-15 22:46:56,369 ERROR [378354947@qtp-596129348-3] org.apache.hadoop.mapreduce.v2.app.webapp.AppController:
Failed to render attempts page with task type : m for job id : job_1434432414806_0003
java.lang.NullPointerException
	at org.apache.hadoop.mapreduce.v2.app.webapp.TaskPage$AttemptsBlock.render(TaskPage.java:74)
	at org.apache.hadoop.yarn.webapp.view.HtmlBlock.render(HtmlBlock.java:69)
	at org.apache.hadoop.yarn.webapp.view.HtmlBlock.renderPartial(HtmlBlock.java:79)
	at org.apache.hadoop.yarn.webapp.View.render(View.java:235)
	at org.apache.hadoop.yarn.webapp.view.HtmlPage$Page.subView(HtmlPage.java:49)
	at org.apache.hadoop.yarn.webapp.hamlet.HamletImpl$EImp._v(HamletImpl.java:117)
	at org.apache.hadoop.yarn.webapp.hamlet.Hamlet$TD._(Hamlet.java:845)
	at org.apache.hadoop.yarn.webapp.view.TwoColumnLayout.render(TwoColumnLayout.java:56)
	at org.apache.hadoop.yarn.webapp.view.HtmlPage.render(HtmlPage.java:82)
	at org.apache.hadoop.yarn.webapp.Controller.render(Controller.java:212)
	at org.apache.hadoop.mapreduce.v2.app.webapp.AppController.attempts(AppController.java:296)
{code}

You should test all links at least manually. Ideally please try to add some unit tests.

> Task Attempt List entries should link to the task overview
> ----------------------------------------------------------
>
>                 Key: MAPREDUCE-6316
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6316
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: Siqi Li
>            Assignee: Siqi Li
>              Labels: BB2015-05-TBR
>         Attachments: AM attempt page.png, AM task page.png, All Attempts page.png, MAPREDUCE-6316.v1.patch,
MAPREDUCE-6316.v2.patch, MAPREDUCE-6316.v3.patch, MAPREDUCE-6316.v4.patch, MAPREDUCE-6316.v5.patch,
MAPREDUCE-6316.v6.patch, Task Overview page.png
>
>
> Typical workflow is to click on the list of failed attempts. Then you want to look at
the counters, or the list of attempts of just one task in general. If each entry task attempt
id linked the task id portion of it back to the task, we would not have to go through the
list of tasks to search for the task.



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