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https://issues.apache.org/jira/browse/AMBARI-10507?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14497332#comment-14497332
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Yusaku Sako commented on AMBARI-10507:
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Committed to branch-2.0.maint.
> Local root user's group being assigned to hadoop
> ------------------------------------------------
>
> Key: AMBARI-10507
> URL: https://issues.apache.org/jira/browse/AMBARI-10507
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server, security
> Affects Versions: 2.0.0
> Reporter: Adam Westerman
> Assignee: Adam Westerman
> Priority: Critical
> Labels: patch, security
> Fix For: 2.1.0, 2.0.1
>
> Attachments: AMBARI-10507.patch
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> When installing Ranger through Ambari, you have the option to specify DB user
> names. If you leave the Ranger DB root user configuration db_root_user as the
> default (which is 'root'), Ambari will erroneously attempt to create a local
> user named root, and assign it to the group 'hadoop'. This results in local
> root users being reassigned to the group 'hadoop'. In addition, both the
> db_user param and audit_db_name param are erroneously being used to create
> local users (granted, with less severe consequences).
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