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https://issues.apache.org/jira/browse/HDFS-13037?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiaoyu Yao resolved HDFS-13037.
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Resolution: Duplicate
Resolve as a dup based on the comments above.
> Support protected path configuration
> ------------------------------------
>
> Key: HDFS-13037
> URL: https://issues.apache.org/jira/browse/HDFS-13037
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: namenode
> Reporter: chuanjie.duan
> Priority: Major
>
> After Hadoop2.7 root path("/") cannot be deleted for any situration. But like
> '/tmp','/user','/user/hive/warehouse' and so on, shouldn't be deleted mostly.
> So can we let user config their own custom protected path. Just for any
> accident.
> 1. add configuration to hdfs-site.xml
> 2. add a command in dfsadmin for refreshing
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