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From "Akira AJISAKA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11393) Revert HADOOP_PREFIX, go back to HADOOP_HOME
Date Wed, 30 Mar 2016 02:19:25 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15217257#comment-15217257

Akira AJISAKA commented on HADOOP-11393:

I got it. "deprecate_env_var" should be "hadoop_deprecate_envvar".

> Revert HADOOP_PREFIX, go back to HADOOP_HOME
> --------------------------------------------
>                 Key: HADOOP-11393
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11393
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: scripts, tracing
>    Affects Versions: 3.0.0
>            Reporter: Allen Wittenauer
>            Assignee: Allen Wittenauer
>         Attachments: HADOOP-11393-00.patch, HADOOP-11393.01.patch, HADOOP-11393.02.patch,
HADOOP-11393.03.patch, HADOOP-11393.04.patch, HADOOP-11393.05.patch
> Today, Windows and parts of the Hadoop source code still use HADOOP_HOME.  The switch
to HADOOP_PREFIX back in 0.21 or so didn't really accomplish what it was intended to do and
only helped confuse the situation.
> _HOME is a much more standard suffix and is, in fact, used for everything in Hadoop except
for the top level project home.  I think it would be beneficial to use HADOOP_HOME in the
shell code as the Official(tm) variable, still honoring HADOOP_PREFIX if it is set.

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