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From "Harsh J (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2293) Enhance MultipleOutputs to allow additional characters in the named output name
Date Thu, 19 Jan 2012 04:44:41 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13188922#comment-13188922
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Harsh J commented on MAPREDUCE-2293:
------------------------------------

Its a bit tedious to maintain patches waiting for reviews for very long time. If there is
no interest in having this (given that new API does already have one way you can bypass checks),
we can close it for now.
                
> 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: 0.24.0
>
>         Attachments: mapreduce.mo.removecheck.r1.diff, mapreduce.mo.removecheck.r2.diff,
mapreduce.mo.removecheck.r3.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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