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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3696) Dependency cycle: Submitter and TaskTracker
Date Mon, 21 Jul 2008 21:07:31 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3696?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Arun C Murthy updated HADOOP-3696:

    Status: Open  (was: Patch Available)

Overall, I agree with goals of this jira.

The fact that the TaskTracker (logically) depends on Hadoop Pipes (even after the programmatic
dependency is broken by Bill's patch) still bothers me. 

I'd like to propose we add a new config parameter: *mapred.task.debug.extra.opts* which are
tacked to the end of the command line for the debug script. Hadoop Pipes (or others like Hadoop
Streaming) can then use this seamlessly. Thoughts?


PS: I've opened HADOOP-3803 for further cleanup of handling the way task debugging is done...

> Dependency cycle: Submitter and TaskTracker
> -------------------------------------------
>                 Key: HADOOP-3696
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3696
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred, pipes
>    Affects Versions: 0.17.0
>            Reporter: Bill de hOra
>            Priority: Minor
>         Attachments: HADOOP-3696.patch
> there's a cycle between org.apache.hadoop.mapred.pipes org.apache.hadoop.mapred; breaking
the dependency between Submitter and TaskTracker fixes it.

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