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https://issues.apache.org/jira/browse/HDFS-15100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17012448#comment-17012448
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Hudson commented on HDFS-15100:
-------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #17842 (See 
[https://builds.apache.org/job/Hadoop-trunk-Commit/17842/])
HDFS-15100. RBF: Print stacktrace when DFSRouter fails to fetch/parse 
(tasanuma: rev 0315ef844862ee863d646b562ba6d8889876ffa9)
* (edit) 
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/FederationUtil.java


> RBF: Print stacktrace when DFSRouter fails to fetch/parse JMX output from 
> NameNode
> ----------------------------------------------------------------------------------
>
>                 Key: HDFS-15100
>                 URL: https://issues.apache.org/jira/browse/HDFS-15100
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: rbf
>            Reporter: Akira Ajisaka
>            Assignee: Akira Ajisaka
>            Priority: Major
>              Labels: supportability
>             Fix For: 3.3.0
>
>
> When DFSRouter fails to fetch or parse JMX output from NameNode, it prints 
> only the error message. Therefore we had to modify the source code to print 
> the stacktrace of the exception to find the root cause.



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