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Posted to mapreduce-issues@hadoop.apache.org by "Jothi Padmanabhan (JIRA)" <ji...@apache.org> on 2009/09/22 08:30:16 UTC

[jira] Updated: (MAPREDUCE-773) LineRecordReader can report non-zero progress while it is processing a compressed stream

     [ https://issues.apache.org/jira/browse/MAPREDUCE-773?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jothi Padmanabhan updated MAPREDUCE-773:
----------------------------------------

    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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