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Posted to common-issues@hadoop.apache.org by "Marouane BENALLA (JIRA)" <ji...@apache.org> on 2018/06/05 13:49:00 UTC
[jira] [Comment Edited] (HADOOP-12741)
UserGroupInformation.loginUserFromKeytab() creates background thread which
is not getting killed even after application exited
[ https://issues.apache.org/jira/browse/HADOOP-12741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16501813#comment-16501813 ]
Marouane BENALLA edited comment on HADOOP-12741 at 6/5/18 1:48 PM:
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We've done the same trick (we have updated the kinit configuration to point to a local script that does nothing) because we're having some race condition on the cache file between the kinit daemon started by Hadoop and k5start (used for automatic renewal). So It's better if we could move with an option to deactivate the daemon thread.
was (Author: m.benalla):
We've done the same trick (we have updated the kinit configuration to point to a local script that does nothing) because we're having some race condition on the cache file between the kinit deamon started by hadoop and k5start (used for automatic renewal). So It's better if we could move with an option to deactivate the deamon thread.
> 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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