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https://issues.apache.org/jira/browse/HDFS-16977?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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WangYuanben resolved HDFS-16977.
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Resolution: Works for Me
> Forbid assigned characters in pathname.
> ---------------------------------------
>
> Key: HDFS-16977
> URL: https://issues.apache.org/jira/browse/HDFS-16977
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: dfsclient, namenode
> Affects Versions: 3.3.4
> Reporter: WangYuanben
> Priority: Minor
> Labels: pull-request-available
> Attachments: HDFS-16977__Forbid_assigned_characters_in_pathname_.patch
>
>
> Some pathnames which contains special character(s) may lead to unexpected
> results. For example, there is a file named "/foo/file*" in my cluster,
> created by "DistributedFileSystem.create(new Path("/foo/file*"))". When I
> want to remove it, I type in "hadoop fs -rm /foo/file*" in shell. However, I
> remove all the files with the prefix of "/foo/file*" unexpectedly. There are
> also some other characters just like '*', such as ' ', '|', '&', etc.
>
> Therefore, it's necessary to restrict the occurrence of these characters in
> pathname. A simple but effective way is to forbid assigned characters in
> pathname when new file or directory is created.
>
> It is also important to add the same function on the Router model and WebHdfs
> model. I will add them as two subtasks later.
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