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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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