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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3579) Support property groups in Hadoop configuration
Date Tue, 17 Jun 2008 12:29:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12605571#action_12605571
] 

Hemanth Yamijala commented on HADOOP-3579:
------------------------------------------

Steve, yes, this matches with the list of requirements I had in mind. Groups and instances
of groups are one way I could think of addressing these requirements.  I agree with you that
we need to define the behavior for overriding, merging and default values. That is what I
meant when I wrote that we need to define the behavior for 'loading configuration from multiple
sources', but your terminology is very clear. 

Do you have an alternate proposal ? Do you see issues with the proposal I described above
? Part of the reason for putting up a proposal was to trigger this discussion, so your inputs
are really appreciated.




> Support property groups in Hadoop configuration
> -----------------------------------------------
>
>                 Key: HADOOP-3579
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3579
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: conf
>            Reporter: Hemanth Yamijala
>
> Hadoop configuration is currently a list of key and value pairs. There are some use-cases
to support configuring groups of related properties. There could also be multiple instances
of such groups. The issue is for adding support for such configuration.

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