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From "Tzu-Li (Gordon) Tai (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-5949) Flink on YARN checks for Kerberos credentials for non-Kerberos authentication methods
Date Thu, 02 Mar 2017 06:15:46 GMT

     [ https://issues.apache.org/jira/browse/FLINK-5949?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tzu-Li (Gordon) Tai updated FLINK-5949:
---------------------------------------
    Component/s: YARN

> Flink on YARN checks for Kerberos credentials for non-Kerberos authentication methods
> -------------------------------------------------------------------------------------
>
>                 Key: FLINK-5949
>                 URL: https://issues.apache.org/jira/browse/FLINK-5949
>             Project: Flink
>          Issue Type: Bug
>          Components: Security, YARN
>    Affects Versions: 1.2.0
>            Reporter: Tzu-Li (Gordon) Tai
>            Priority: Critical
>
> Reported in ML: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Flink-Yarn-and-MapR-Kerberos-issue-td11996.html
> The problem is that the Flink on YARN client incorrectly assumes {{UserGroupInformation.isSecurityEnabled()}}
returns {{true}} only for Kerberos authentication modes, whereas it actually returns {{true}}
for other kinds of authentications too.
> We should use {{UserGroupInformation.getAuthenticationMethod()}} to check for {{KERBEROS}}
only.



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