[jira] [Resolved] (HDFS-16977) Forbid assigned characters in pathname.

["WangYuanben (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-16977?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

WangYuanben resolved HDFS-16977.
--------------------------------
    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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