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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14202) fix jsvc/secure user var inconsistencies
Date Fri, 07 Apr 2017 06:07:41 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15960333#comment-15960333
] 

Allen Wittenauer commented on HADOOP-14202:
-------------------------------------------

bq. new blank line at EOF. "git am" complains.

I always commit with smart-apply-patch in committer mode which will fix these at commit time.

> fix jsvc/secure user var inconsistencies
> ----------------------------------------
>
>                 Key: HADOOP-14202
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14202
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: scripts
>    Affects Versions: 3.0.0-alpha2
>            Reporter: Allen Wittenauer
>            Assignee: Allen Wittenauer
>         Attachments: HADOOP-14202.00.patch, HADOOP-14202.01.patch, HADOOP-14202.02.patch,
HADOOP-14202.03.patch, HADOOP-14202.04.patch
>
>
> Post-HADOOP-13341 and (more importantly) HADOOP-13673, there has been a major effort
on making the configuration environment variables consistent among all the projects. The vast
majority of vars now look like (command)_(subcommand)_(etc). Two hold outs are HADOOP_SECURE_DN_USER
 and HADOOP_PRIVILEGED_NFS_USER.
> Additionally, there is
> * no generic handling
> * no documentation for anyone
> * no safety checks to make sure things are defined
> In order to fix all of this, we should:
> * deprecate the previous vars using the deprecation function, updating the HDFS documentation
that references them
> * add generic (command)_(subcommand)_SECURE_USER support
> * add some verification for the previously mentioned var
> * add some docs to UnixShellGuide.md



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