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https://issues.apache.org/jira/browse/HADOOP-11640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14344935#comment-14344935
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John Wang commented on HADOOP-11640:
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The default value for delimiter of a Configuration object is specified as 
COMMA.  And I have not introduced any overhead. 

> add user defined delimiter support to Configuration
> ---------------------------------------------------
>
>                 Key: HADOOP-11640
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11640
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 2.6.0
>            Reporter: John Wang
>            Assignee: John Wang
>         Attachments: HADOOP-11640.patch
>
>
> As mentioned by org.apache.hadoop.conf.Configuration.getStrings ("Get the 
> comma delimited values of the name property as an array of Strings"), only 
> comma separated strings can be used.  It would be much better if user defined 
> separators are supported.



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