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From "Ajay Kumar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15613) KerberosAuthenticator should resolve the hostname to get the service principal
Date Tue, 31 Jul 2018 17:25:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16564031#comment-16564031
] 

Ajay Kumar commented on HADOOP-15613:
-------------------------------------

[~surendrasingh] Does this work when you replace ip with hostname? Replacing hostname with
fully qualified domain name may break some existing applications where principals were generated
with host name but not fqdn.

> KerberosAuthenticator should resolve the hostname to get the service principal
> ------------------------------------------------------------------------------
>
>                 Key: HADOOP-15613
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15613
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: auth
>    Affects Versions: 2.7.2
>            Reporter: Surendra Singh Lilhore
>            Assignee: Surendra Singh Lilhore
>            Priority: Major
>         Attachments: HADOOP-15613.001.patch
>
>
> When in rest URL, IP is used as a address then "KerberosAuthenticator.this.url.getHost()"
not able to resolve the hostname. This hostname will be used to construct server HTTP principal.



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