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Posted to mapreduce-issues@hadoop.apache.org by "Harsh J (JIRA)" <ji...@apache.org> on 2016/10/26 14:50:58 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:
-------------------------------
Assignee: (was: Harsh J)
> 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
> Priority: Minor
> Attachments: mapreduce.mo.removecheck.r1.diff, mapreduce.mo.removecheck.r2.diff, mapreduce.mo.removecheck.r3.diff, mapreduce.mo.removecheck.r4.diff, mapreduce.mo.removecheck.r5.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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