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From "Hong Tang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-773) LineRecordReader can report non-zero progress while it is processing a compressed stream
Date Mon, 17 Aug 2009 20:40:14 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12744191#action_12744191
] 

Hong Tang commented on MAPREDUCE-773:
-------------------------------------

Patch looks good. +1.

> LineRecordReader can report non-zero progress while it is processing a compressed stream
> ----------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-773
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-773
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: task
>            Reporter: Devaraj Das
>            Assignee: Devaraj Das
>             Fix For: 0.21.0
>
>         Attachments: 773.2.patch, 773.3.patch, 773.patch, 773.patch
>
>
> Currently, the LineRecordReader returns 0.0 from getProgress() for most inputs (since
the "end" of the filesplit is set to Long.MAX_VALUE for compressed inputs). This can be improved
to return a non-zero progress even for compressed streams (though it may not be very reflective
of the actual progress).

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