[jira] [Updated] (HADOOP-12954) Add a way to change hadoop.security.token.service.use_ip

["Robert Kanter (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-12954?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Kanter updated HADOOP-12954:
-----------------------------------
    Status: Patch Available  (was: Open)

> 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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