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https://issues.apache.org/jira/browse/HADOOP-14299?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16048083#comment-16048083
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Wei-Chiu Chuang commented on HADOOP-14299:
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I am not familiar with this subject so bear with me.
What is the use case here? If the user impersonating the proxy user renew its 
own credential, wouldn't it work?

> Hadoop Renew Thread for proxy users
> -----------------------------------
>
>                 Key: HADOOP-14299
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14299
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: hdfs-client
>    Affects Versions: 2.7.1
>            Reporter: Prabhu Joseph
>
> Currently Hadoop Client has a separate renew thread which is created only for 
> Authentication type Kerberos and not for Proxy. So for proxy users, a yarn 
> client monitoring a long running job will fail after initial ticket lifetime 
> with GSS initiate failed unless there is a manual re-kinit. 
> https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java#L1030



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