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Posted to mapreduce-issues@hadoop.apache.org by "Harsh J (JIRA)" <ji...@apache.org> on 2011/06/26 19:33:47 UTC

[jira] [Updated] (MAPREDUCE-2293) Enhance MultipleOutputs to allow additional characters in the named output name

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Harsh J updated MAPREDUCE-2293:
-------------------------------

    Fix Version/s: 0.23.0
           Status: Patch Available  (was: Open)

> Enhance MultipleOutputs to allow additional characters in the named output name
> -------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2293
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2293
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 0.21.0
>            Reporter: David Rosenstrauch
>            Assignee: Harsh J
>            Priority: Minor
>             Fix For: 0.23.0
>
>         Attachments: mapreduce.mo.removecheck.r1.diff, mapreduce.mo.removecheck.r2.diff
>
>
> Currently you are only allowed to use alpha-numeric characters in a named output name in the MultipleOutputs class.  This is a bit of an onerous restriction, as it would be extremely convenient to be able to use non alpha-numerics in the name too.  (E.g., a '.' character would be very helpful, so that you can use the named output name for holding a file name/extension.  Perhaps '-' and a '_' characters as well.)
> The restriction seems to be somewhat arbitrary - it appears to be only enforced in the checkTokenName method.  (Though I don't know if there's any downstream impact by loosening this restriction.)
> Would be extremely helpful/useful to have this fixed though!

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