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Posted to hdfs-dev@hadoop.apache.org by "Eric Payne (JIRA)" <ji...@apache.org> on 2014/11/05 23:09:34 UTC

[jira] [Created] (HDFS-7362) Proxy user refresh won't modify or remove existing groups or hosts from super user list

Eric Payne created HDFS-7362:
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             Summary: 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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