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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1073) Progress reported for pipes tasks is incorrect.
Date Mon, 28 Feb 2011 16:48:36 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13000391#comment-13000391
] 

Hadoop QA commented on MAPREDUCE-1073:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12450229/MAPREDUCE-1073--yhadoop20--2010-07-22--1530.patch
  against trunk revision 1075216.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 7 new or modified tests.

    -1 patch.  The patch command could not apply the patch.

Console output: https://hudson.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/95//console

This message is automatically generated.

> Progress reported for pipes tasks is incorrect.
> -----------------------------------------------
>
>                 Key: MAPREDUCE-1073
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1073
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: pipes
>    Affects Versions: 0.20.1
>            Reporter: Sreekanth Ramakrishnan
>            Assignee: Dick King
>         Attachments: MAPREDUCE-1073--yhadoop20--2010-07-22--1530.patch, MAPREDUCE-1073--yhadoop20--2010-07-22.patch,
MAPREDUCE-1073_yhadoop20.patch, mapreduce-1073--2010-03-31.patch, mapreduce-1073--2010-04-06.patch
>
>
> Currently in pipes, {{org.apache.hadoop.mapred.pipes.PipesMapRunner.run(RecordReader<K1,
V1>, OutputCollector<K2, V2>, Reporter)}} we do the following:
> {code}
>         while (input.next(key, value)) {
>           downlink.mapItem(key, value);
>           if(skipping) {
>             downlink.flush();
>           }
>         }
> {code}
> This would result in consumption of all the records for current task and taking task
progress to 100% whereas the actual pipes application would be trailing behind. 

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