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https://issues.apache.org/jira/browse/HDFS-9123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang updated HDFS-9123:
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Attachment: HDFS-9123.001.patch
> Validation of a path ended with a '/'
> -------------------------------------
>
> Key: HDFS-9123
> URL: https://issues.apache.org/jira/browse/HDFS-9123
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: fs
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Priority: Minor
> Attachments: HDFS-9123.001.patch
>
>
> HDFS forbids copying from a directory to its subdirectory (e.g. hdfs dfs -cp
> /abc /abc/xyz) as otherwise it could cause infinite copying (/abc/xyz/xyz,
> /abc/xyz/xyz, /abc/xyz/xyz/xyz,... etc)
> However, if the source path is ended with a '/' path separator, the existing
> validation for sub-directories fails. For example, copying from / to /abc
> would cause infinite copying, until the disk space is filled up.
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