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https://issues.apache.org/jira/browse/HDFS-16360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17461559#comment-17461559
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Viraj Jasani commented on HDFS-16360:
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Makes sense, providing prompt while removing root dir sounds good.
> Adding confirm prompt when removing root directory on local filesystem
> ----------------------------------------------------------------------
>
> Key: HDFS-16360
> URL: https://issues.apache.org/jira/browse/HDFS-16360
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Yayu Wang
> Priority: Major
>
> Would you like to add a confirm prompt when removing the root directory,
> especially when using local filesystem? I forgot to set fs.defaultFS and
> executed `hdfs dfs -rm -r /` and it deleted everything on my local system. I
> deleted all the files which I have access to under / directory, and I think a
> sudo user may destroy the host by doing so.
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