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From "Robert Kanter (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12954) Add a way to change hadoop.security.token.service.use_ip
Date Tue, 22 Mar 2016 23:49:25 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15207552#comment-15207552
] 

Robert Kanter commented on HADOOP-12954:
----------------------------------------

Ya, let's leave them both open.  This is a Common change and the MR AM would be in MapReduce,
so we'd need to JIRAs anyway.  We can add the {{setConfiguration}} method in this JIRA and
use MAPREDUCE-6565 to call it (similar to what OOZIE-2490 is for).

> Add a way to change hadoop.security.token.service.use_ip
> --------------------------------------------------------
>
>                 Key: HADOOP-12954
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12954
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.6.0
>            Reporter: Robert Kanter
>            Assignee: Robert Kanter
>         Attachments: HADOOP-12954.001.patch
>
>
> Currently, {{hadoop.security.token.service.use_ip}} is set on JVM startup via:
> {code:java}
>   static {
>     Configuration conf = new Configuration();
>     boolean useIp = conf.getBoolean(
>         CommonConfigurationKeys.HADOOP_SECURITY_TOKEN_SERVICE_USE_IP,
>         CommonConfigurationKeys.HADOOP_SECURITY_TOKEN_SERVICE_USE_IP_DEFAULT);
>     setTokenServiceUseIp(useIp);
>   }
> {code}
> This is a problem for clients, such as Oozie, who don't add *-site.xml files to their
classpath.  Oozie normally creates a {{JobClient}} and passes a {{Configuration}} to it with
the proper configs we need.  However, because {{hadoop.security.token.service.use_ip}} is
specified in a static block like this, and there's no API to change it, Oozie has no way to
set it to the non-default value.
> I propose we add a {{setConfiguration}} method which takes a {{Configuration}} and rereads
{{hadoop.security.token.service.use_ip}}.  There's a few other properties that are also loaded
statically on startup that can be reloaded here as well.  



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