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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1431) Map tasks can't timeout for failing to call progress
Date Fri, 01 Jun 2007 21:11:15 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12500860
] 

Hadoop QA commented on HADOOP-1431:
-----------------------------------

-1, could not apply patch.

The patch command could not apply the latest attachment http://issues.apache.org/jira/secure/attachment/12358738/1431.patch
as a patch to trunk revision r543607.

Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/230/console

Please note that this message is automatically generated and may represent a problem with
the automation system and not the patch.

> Map tasks can't timeout for failing to call progress
> ----------------------------------------------------
>
>                 Key: HADOOP-1431
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1431
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.13.0
>            Reporter: Owen O'Malley
>            Assignee: Arun C Murthy
>            Priority: Blocker
>             Fix For: 0.13.0
>
>         Attachments: 1431.patch, HADOOP-1431_1_20070525.patch, HADOOP-1431_2_20070530.patch,
HADOOP-1431_3_20070601.patch
>
>
> Currently the map task runner creates a thread that calls progress every second to keep
the system from killing the map if the sort takes too long. This is the wrong approach, because
it will cause stuck tasks to not be killed. The right solution is to have the sort call progress
as it actually makes progress. This is part of what is going on in HADOOP-1374. A map gets
stuck at 100% progress, but not done.

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