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From "Kousuke Saruta (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9668) Configuration#iterator method should interpret variables in a property as well as Configuration#get method
Date Wed, 17 Jul 2013 07:10:53 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13710815#comment-13710815
] 

Kousuke Saruta commented on HADOOP-9668:
----------------------------------------

I found there is getRaw method in Configuration which get the value of a property and TestReconfiguration
uses it to compare each properties which have same keys without interpreting variables.
So, I suggest adding iteratorWithVariable method instead of modifying iterator method.
                
> Configuration#iterator method should interpret variables in a property as well as Configuration#get
method
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-9668
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9668
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: conf
>    Affects Versions: 2.1.0-beta, 1.2.1
>            Reporter: Kousuke Saruta
>            Priority: Minor
>              Labels: newbie
>         Attachments: HADOOP-9668-branch-2.1.0-beta.patch, HADOOP-9668.patch
>
>
> o.a.h.conf.Configuration#get method interpret variables in a property in *-site.xml but
Configuration#iterator method doesn't.
> For example, when a property "user.name" is set to "hadoop" and another property "hadoop.tmp.dir"
is set to "/tmp/${user.name}", Configuration#get interpret "hadoop.tmp.dir" as "/tmp/hadoop"
but Configuration#iterator doesn't interpret.
> I think Configuration#iterator should interpret variables or if there are some reasons,
it should be documented that Configuration#iterator doesn't interpret variables.

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