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From "Gabor Bota (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-15593) UserGroupInformation TGT renewer throws NPE
Date Mon, 23 Jul 2018 12:35:00 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-15593?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gabor Bota updated HADOOP-15593:
--------------------------------
    Attachment: HADOOP-15593.003.patch

> 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: Blocker
>         Attachments: HADOOP-15593.001.patch, HADOOP-15593.002.patch, HADOOP-15593.003.patch
>
>
> 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 foo@EXAMPLE.COM,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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