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Date: Mon, 18 May 2009 23:54:45 -0700 (PDT)
From: "Owen O'Malley (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Commented: (HADOOP-5710) Counter MAP_INPUT_BYTES missing
 from new mapreduce api.
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    [ https://issues.apache.org/jira/browse/HADOOP-5710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12710644#action_12710644 ] 

Owen O'Malley commented on HADOOP-5710:
---------------------------------------

That sounds reasonable, Sharad.

> Counter MAP_INPUT_BYTES missing from new mapreduce api.
> -------------------------------------------------------
>
>                 Key: HADOOP-5710
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5710
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Amareshwari Sriramadasu
>             Fix For: 0.21.0
>
>         Attachments: patch-5710.txt
>
>
> MapTask, with current new mapreduce api, does not maintain MAP_INPUT_BYTES counter. Since RecordReader doesnot have getPos() api, it is not possible for the map task to maintain. Individual record readers (LineRecordReader, SequenceFileRecordReader) could be modified to maintain the same.

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