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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-10787) Rename/remove non-HADOOP_*, etc from the shell scripts
Date Fri, 13 Nov 2015 19:10:10 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-10787?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer updated HADOOP-10787:
--------------------------------------
    Release Note: 
<!-- markdown -->
The following shell environment variables have been deprecated:

| Old | New |
|:---- |:---- |
| DEFAULT_LIBEXEC_DIR | HADOOP_DEFAULT_LIBEXEC_DIR |
| SLAVE_NAMES | HADOOP_SLAVE_NAMES |
| TOOL_PATH | HADOOP_TOOLS_PATH |

In addition:
* DEFAULT_LIBEXEC_DIR will NOT be automatically transitioned to HADOOP_DEFAULT_LIBEXEC_DIR
and will require changes to any scripts setting that value.  A warning will be printed to
the screen if DEFAULT_LIBEXEC_DIR has been configured.
* HADOOP_TOOLS_PATH is now properly handled as a multi-valued, Java classpath-style variable.
 Prior, multiple values assigned to TOOL_PATH would not work a predictable manner.


> Rename/remove non-HADOOP_*, etc from the shell scripts
> ------------------------------------------------------
>
>                 Key: HADOOP-10787
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10787
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: scripts
>    Affects Versions: 3.0.0
>            Reporter: Allen Wittenauer
>            Assignee: Allen Wittenauer
>            Priority: Blocker
>              Labels: scripts
>             Fix For: 3.0.0
>
>         Attachments: HADOOP-10787.00.patch, HADOOP-10787.01.patch, HADOOP-10787.02.patch,
HADOOP-10787.03.patch, HADOOP-10787.04.patch, HADOOP-10787.05.patch
>
>
> We should make an effort to clean up the shell env var name space by removing unsafe
variables.  See comments for list.



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