[jira] [Commented] (HDFS-9123) Validation of a path ended with a '/'

[Steve Loughran (JIRA)]

    [ 
https://issues.apache.org/jira/browse/HDFS-9123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14904191#comment-14904191
 ] 

Steve Loughran commented on HDFS-9123:
--------------------------------------

should the tests really downgrade exceptions to logs? I'd expect them to signal 
failure and be rethrown

{code}
        try {
                  val = shell.run(args1);
                } catch (Exception e) {
                  System.err.println("Exception raised from DFSShell.run " +
                          e.getLocalizedMessage());
                }
{code}

> 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-9123.002.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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