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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7287) Configuration deprecation mechanism doesn't work properly for GenericOptionsParser/Tools
Date Tue, 24 May 2011 11:14:47 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13038505#comment-13038505
] 

Hudson commented on HADOOP-7287:
--------------------------------

Integrated in Hadoop-Common-trunk #698 (See [https://builds.apache.org/hudson/job/Hadoop-Common-trunk/698/])
    HADOOP-7287. Configuration deprecation mechanism doesn't work properly for GenericOptionsParser
and Tools. Contributed by Aaron T. Myers.

todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1126719
Files : 
* /hadoop/common/trunk/CHANGES.txt
* /hadoop/common/trunk/src/java/org/apache/hadoop/conf/Configuration.java
* /hadoop/common/trunk/src/test/core/org/apache/hadoop/conf/TestConfigurationDeprecation.java
* /hadoop/common/trunk/src/test/test-fake-default.xml


> Configuration deprecation mechanism doesn't work properly for GenericOptionsParser/Tools
> ----------------------------------------------------------------------------------------
>
>                 Key: HADOOP-7287
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7287
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: conf
>    Affects Versions: 0.22.0, 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Aaron T. Myers
>            Priority: Blocker
>             Fix For: 0.22.0, 0.23.0
>
>         Attachments: hadoop-7287-still-broken.txt, hadoop-7287-testcase.txt, hadoop-7287-trunk.0.patch,
hadoop-7287-trunk.1.patch, hadoop-7287-trunk.2.patch
>
>
> For example, you can't use -D options on the "hadoop fs" command line in order to specify
the deprecated names of configuration options. The issue is that the ordering is:
> - JVM starts
> - GenericOptionsParser creates a Configuration object and calls set() for each of the
options specified on command line
> - DistributedFileSystem or other class eventually instantiates HdfsConfiguration which
adds the deprecations
> - Some class calls conf.get("new key") and sees the default instead of the version set
on the command line

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