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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13673) Update scripts to be smarter when running with privilege
Date Tue, 17 Jan 2017 22:04:26 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15826913#comment-15826913
] 

Andrew Wang commented on HADOOP-13673:
--------------------------------------

Nice rev Allen, LGTM +1 personally. I'd like to wait for Ravi's +1 too, though I believe his
review comments are also addressed or explained.

> Update scripts to be smarter when running with privilege
> --------------------------------------------------------
>
>                 Key: HADOOP-13673
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13673
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: scripts
>    Affects Versions: 3.0.0-alpha1, 3.0.0-alpha2
>            Reporter: Allen Wittenauer
>            Assignee: Allen Wittenauer
>              Labels: security
>         Attachments: HADOOP-13673.00.patch, HADOOP-13673.01.patch, HADOOP-13673.02.patch,
HADOOP-13673.03.patch, HADOOP-13673.04.patch
>
>
> As work continues on HADOOP-13397, it's become evident that we need better hooks to start
daemons as specifically configured users.  Via the (command)_(subcommand)_USER environment
variables in 3.x, we actually have a standardized way to do that.  This in turn means we can
make the sbin scripts super functional with a bit of updating:
> * Consolidate start-dfs.sh and start-secure-dns.sh into one script
> * Make start-\*.sh and stop-\*.sh know how to switch users when run as root
> * Undeprecate start/stop-all.sh so that it could be used as root for production purposes
and as a single user for non-production users



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