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https://issues.apache.org/jira/browse/HADOOP-15593?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HADOOP-15593 started by Gabor Bota.
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> UserGroupInformation TGT renewer throws NPE
> -------------------------------------------
>
> Key: HADOOP-15593
> URL: https://issues.apache.org/jira/browse/HADOOP-15593
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Affects Versions: 3.0.0
> Reporter: Wei-Chiu Chuang
> Assignee: Gabor Bota
> Priority: Critical
>
> Found the following NPE thrown in UGI tgt renewer. The NPE was thrown within
> an exception handler so the original exception was hidden, though it's likely
> caused by expired tgt.
> {noformat}
> 18/07/02 10:30:57 ERROR util.SparkUncaughtExceptionHandler: Uncaught
> exception in thread Thread[TGT Renewer for [email protected],5,main]
> 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:748){noformat}
> Suspect it's related to [https://bugs.openjdk.java.net/browse/JDK-8154889].
> The relevant code was added in HADOOP-13590. File this jira to handle the
> exception better.
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