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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-430) Task stuck in cleanup with OutOfMemoryErrors
Date Tue, 25 Aug 2009 18:33:59 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12747544#action_12747544
] 

Arun C Murthy commented on MAPREDUCE-430:
-----------------------------------------

I guess we should continue to debate the semantics of exception-handling in a separate jira
- and get this in as an emergency fix. 

Wrt the patch, I'd be happier to with 2 changes:

# Don't rethrow exceptions:
# 'Unwrap' to get the 'cause' in Child.java (http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html#getCause%28%29).
 
Thoughts?

> Task stuck in cleanup with OutOfMemoryErrors
> --------------------------------------------
>
>                 Key: MAPREDUCE-430
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-430
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Amar Kamat
>             Fix For: 0.20.1
>
>         Attachments: MAPREDUCE-430-v1.11.patch, MAPREDUCE-430-v1.12-branch-0.20.patch,
MAPREDUCE-430-v1.12.patch, MAPREDUCE-430-v1.6-branch-0.20.patch, MAPREDUCE-430-v1.6.patch,
MAPREDUCE-430-v1.7.patch, MAPREDUCE-430-v1.8.patch
>
>
> Obesrved a task with OutOfMemory error, stuck in cleanup.

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