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https://issues.apache.org/jira/browse/HDFS-3817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13647665#comment-13647665
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Suresh Srinivas commented on HDFS-3817:
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+1 for the branch-1 patch.
> avoid printing stack information for SafeModeException
> ------------------------------------------------------
>
> Key: HDFS-3817
> URL: https://issues.apache.org/jira/browse/HDFS-3817
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Affects Versions: 3.0.0
> Reporter: Brandon Li
> Assignee: Brandon Li
> Fix For: 3.0.0, 0.23.7, 2.0.5-beta
>
> Attachments: HDFS-3817.branch-1.patch, HDFS-3817.patch
>
>
> When NN is in safemode, any namespace change request could cause a
> SafeModeException to be thrown and logged in the server log, which can make
> the server side log grow very quickly.
> The server side log can be more concise if only the exception and error
> message will be printed but not the stack trace.
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