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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10559) add a method to UserGroupInformation to load settings from a given conf file
Date Thu, 01 May 2014 16:36:21 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13986745#comment-13986745
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Steve Loughran commented on HADOOP-10559:
-----------------------------------------

There's an {{@VisibleForTesting}} reset() method, but that still takes the shared config.
I'd rather some {{reload(Configuration)}} method that would reset everything and reload the
details from the given config.

> add a method to UserGroupInformation to load settings from a given conf file
> ----------------------------------------------------------------------------
>
>                 Key: HADOOP-10559
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10559
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>    Affects Versions: 2.4.0
>            Reporter: Steve Loughran
>
> There's no easy way to set up the security parameters of a process unless it's set in
core-site.xml, because it's just inited via: 
> {{initialize(new Configuration(), false);}}
> # If it is defined in an XML resource injected in to the config resource list via {{Configuration.addResource()}}
-then it *may* get picked up, but only if nothing has already created the configs.
> # If it is defined in any other means -you can't get it in.
> This is an issue with client apps that don't have core-site XML files on their classpath,
and which are loading their configs more dynamically. Everything works on an insecure cluster,
but try to target a secure one and things break.



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