[jira] Updated: (HADOOP-1857) Ability to run a script when a task fails to capture stack traces

["Amareshwari Sri Ramadasu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-1857?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Amareshwari Sri Ramadasu updated HADOOP-1857:
---------------------------------------------

    Attachment: patch1857.txt

> Ability to run a script when a task fails to capture stack traces
> -----------------------------------------------------------------
>
>                 Key: HADOOP-1857
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1857
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.14.0
>            Reporter: Amareshwari Sri Ramadasu
>            Assignee: Amareshwari Sri Ramadasu
>             Fix For: 0.15.0
>
>         Attachments: patch1857.txt, patch1857.txt
>
>
> This basically is for providing a better user interface for debugging failed
> jobs. Today we see stack traces for failed tasks on the job ui if the job
> happened to be a Java MR job. For non-Java jobs like Streaming, Pipes, the
> diagnostic info on the job UI is not helpful enough to debug what might have
> gone wrong. They are usually framework traces and not app traces.
> We want to be able to provide a facility, via user-provided scripts, for doing
> post-processing on task logs, input, output, etc. There should be some default
> scripts like running core dumps under gdb for locating illegal instructions,
> the last few lines from stderr, etc.  These outputs could be sent to the
> tasktracker and in turn to the jobtracker which would then display it on the
> job UI on demand.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.