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https://issues.apache.org/jira/browse/HADOOP-11958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14601464#comment-14601464
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Hudson commented on HADOOP-11958:
---------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk #2185 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2185/])
HADOOP-11958. MetricsSystemImpl fails to show backtrace when an error occurs
(Jason Lowe via jeagles) (jeagles: rev 2236b577a34b069c0d1f91da99f63a199f260ac2)
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/impl/MetricsSystemImpl.java
* hadoop-common-project/hadoop-common/CHANGES.txt
> MetricsSystemImpl fails to show backtrace when an error occurs
> --------------------------------------------------------------
>
> Key: HADOOP-11958
> URL: https://issues.apache.org/jira/browse/HADOOP-11958
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Fix For: 3.0.0, 2.8.0
>
> Attachments: HADOOP-11958.001.patch
>
>
> While investigating YARN-3619 it was frustrating that MetricsSystemImpl was
> logging a ConcurrentModificationException but without any backtrace. Logging
> a backtrace would be very beneficial to tracking down the cause of the
> problem.
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