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https://issues.apache.org/jira/browse/YARN-8514?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Yang resolved YARN-8514.
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Resolution: Duplicate
Assignee: Eric Yang
This is solved upstream in HADOOP-15593.
> YARN RegistryDNS throws NPE when Kerberos tgt expires
> -----------------------------------------------------
>
> Key: YARN-8514
> URL: https://issues.apache.org/jira/browse/YARN-8514
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.9.0, 3.0.0, 3.1.0, 2.9.1, 3.0.1, 3.0.2, 2.9.2
> Reporter: Eric Yang
> Assignee: Eric Yang
> Priority: Critical
>
> After Kerberos ticket expires, RegistryDNS throws NPE error:
> {code:java}
> 2018-07-06 01:26:25,025 ERROR yarn.YarnUncaughtExceptionHandler
> (YarnUncaughtExceptionHandler.java:uncaughtException(68)) - Thread Thread[TGT
> Renewer for rm/host1.example....@example.com,5,main] threw an Exception.
> java.lang.NullPointerException
> at
> javax.security.auth.kerberos.KerberosTicket.getEndTime(KerberosTicket.java:482)
> at
> org.apache.hadoop.security.UserGroupInformation$1.run(UserGroupInformation.java:894)
> at java.lang.Thread.run(Thread.java:745){code}
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