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Posted to common-issues@hadoop.apache.org by "Kousuke Saruta (JIRA)" <ji...@apache.org> on 2013/06/25 02:50:20 UTC

[jira] [Created] (HADOOP-9668) Configuration#iterator method should interpret variables in a property as well as Configuration#get method

Kousuke Saruta created HADOOP-9668:
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             Summary: 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


o.a.h.conf.Configuration#get method interpret variables in a property in *-site.xml but Configuration#iterator method don'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 don't interpret.

I think Configuration#iterator should interpret variables or if there are some reasons, it should be documented that Configuration#iterator don't interpret variables.

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