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https://issues.apache.org/jira/browse/MAPREDUCE-773?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jothi Padmanabhan updated MAPREDUCE-773:
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Release Note: Modifies LineRecordReader to report an approximate progress,
instead of just returning 0, when using compressed streams.
> 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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