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From "Eric Payne (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-7362) Proxy user refresh won't modify or remove existing groups or hosts from super user list
Date Mon, 10 Nov 2014 16:08:17 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7362?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Payne resolved HDFS-7362.
------------------------------
    Resolution: Duplicate

This is not exactly a dup of HADOOP-10817, but changes made for HADOOP-10817 fixed this issue.


> Proxy user refresh won't modify or remove existing groups or hosts from super user list
> ---------------------------------------------------------------------------------------
>
>                 Key: HDFS-7362
>                 URL: https://issues.apache.org/jira/browse/HDFS-7362
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.5.0
>            Reporter: Eric Payne
>            Assignee: Eric Payne
>
> 2.x added a new DefaultImpersonationProvider class for reading the superuser
> configuration. In this class, once the host and group properties for a proxyuser are
defined, they cannot be removed or modified without bouncing the daemon.
> As long as the config is updated correctly the first time, this problem won't manifest
itself. Once defined, these properties don't tend to change. However, if the properties are
mis-entered the first time, restarting the NN/RM/JHS/etc will be necessary to correctly re-read
the config. An admin refresh won't do it.



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