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https://issues.apache.org/jira/browse/HADOOP-15717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16647159#comment-16647159
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Hudson commented on HADOOP-15717:
---------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #15182 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/15182/])
HADOOP-15717. TGT renewal thread does not log IOException (snemeth via
(rkanter: rev d91d47bc739f23ca22a7e44fc83d449db57ab130)
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java
> TGT renewal thread does not log IOException
> -------------------------------------------
>
> Key: HADOOP-15717
> URL: https://issues.apache.org/jira/browse/HADOOP-15717
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Szilard Nemeth
> Assignee: Szilard Nemeth
> Priority: Major
> Fix For: 3.3.0
>
> Attachments: HADOOP-15717.001.patch, HADOOP-15717.002.patch
>
>
> I came across a case where tgt.getEndTime() was returned null and it resulted
> in an NPE, this observation was popped out of a test suite execution on a
> cluster. The reason for logging the {{IOException}} is that it helps to
> troubleshoot what caused the exception, as it can come from two different
> calls from the try-catch.
> I can see that [~gabor.bota] handled this with HADOOP-15593, but apart from
> logging the fact that the ticket's {{endDate}} was null, we have not logged
> the exception at all.
> With the current code, the exception is swallowed and the thread terminates
> in case the ticket's {{endDate}} is null.
> As this can happen with OpenJDK for example, it is required to print the
> exception (stack trace, message) to the log.
> The code should be updated here:
> https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java#L918
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