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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HADOOP-2538) NPE in TaskLog.java
Date Sat, 14 Jun 2008 18:55:45 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-2538?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Owen O'Malley reassigned HADOOP-2538:
-------------------------------------

    Assignee: Michael Bieniosek

> NPE in TaskLog.java
> -------------------
>
>                 Key: HADOOP-2538
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2538
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.15.0
>            Reporter: Michael Bieniosek
>            Assignee: Michael Bieniosek
>            Priority: Trivial
>             Fix For: 0.16.0
>
>         Attachments: hadoop-2538.patch
>
>
> In the tasktracker web ui, if I go to
> /tasklog?taskid=task_200801020752_0383_m_000000_0&all=true&plaintext=true
> which corresponds to a short log (<4k), I get a 500 in the web ui, and this NPE in
the tasktracker log:
> 2008-01-07 21:02:13,935 WARN /: /tasklog?taskid=task_200801020752_0383_m_000000_
> 0&all=true&plaintext=true: 
> java.lang.NullPointerException
>         at org.apache.hadoop.mapred.TaskLog.getTaskLogFile(TaskLog.java:48)
>         at org.apache.hadoop.mapred.TaskLog$Reader.<init>(TaskLog.java:124)
>         at org.apache.hadoop.mapred.TaskLogServlet.printTaskLog(TaskLogServlet.j
> ava:44)
>         at org.apache.hadoop.mapred.TaskLogServlet.doGet(TaskLogServlet.java:134
> )
> Note that /tasklog?taskid=task_200801020752_0383_m_000000_0&all=true&plaintext=true
is an invalid url; the url should look like &plaintext=true&filter=STDOUT

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