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Posted to mapreduce-issues@hadoop.apache.org by "Jason Lowe (JIRA)" <ji...@apache.org> on 2013/12/05 18:40:36 UTC

[jira] [Updated] (MAPREDUCE-5670) CombineFileRecordReader should report progress when moving to the next file

     [ https://issues.apache.org/jira/browse/MAPREDUCE-5670?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason Lowe updated MAPREDUCE-5670:
----------------------------------

    Description: If a combine split consists of many "empty" files (i.e.: no record found by the underlying record reader) then theoretically a task can timeout due to lack of reported progress.

> CombineFileRecordReader should report progress when moving to the next file
> ---------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-5670
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5670
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.9, 2.2.0
>            Reporter: Jason Lowe
>            Priority: Minor
>
> If a combine split consists of many "empty" files (i.e.: no record found by the underlying record reader) then theoretically a task can timeout due to lack of reported progress.



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