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From "Marouane BENALLA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12741) UserGroupInformation.loginUserFromKeytab() creates background thread which is not getting killed even after application exited
Date Fri, 15 Jun 2018 21:12:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16514364#comment-16514364
] 

Marouane BENALLA commented on HADOOP-12741:
-------------------------------------------

[~stevel@apache.org] I'm not seeing any place where can I submit my patch. I think it is
a question of right on the ticket, could you check please ?

> UserGroupInformation.loginUserFromKeytab() creates background thread which is not getting
killed even after application exited
> ------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-12741
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12741
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: security
>    Affects Versions: 2.6.3
>            Reporter: Umesh K
>            Priority: Major
>
> Hi UserGroupInformation.loginUserFromKeytab() method creates one background thread for
keytab refresh after every 10 hours I guess. One of my application is using UserGroupInformation.loginUserFromKeytab()
but at the end of my application the background thread created by it does not get killed it
keeps on running. How do I kill/stop thead started by UserGroupInformation.loginUserFromKeytab()?
Please guide or please provide method inside UserGroupInformation so that we can kill it or
stop it. Thanks in advance. 



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