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From "Haohui Mai (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5935) New Namenode UI FS browser should throw smarter error messages
Date Thu, 13 Feb 2014 21:46:21 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13900768#comment-13900768
] 

Haohui Mai commented on HDFS-5935:
----------------------------------

Thanks for the patch. I think the error message looks good.

{code}
+      var msg = '<p>Failed to retreive data from ' + url + ': ' + err + '</p>';
+      switch(jqxhr.status) {
...
{code}

The first line gives a default value to {{msg}}, then the code uses {{switch()}} to handle
the special cases. It might be a little bit confusing. Maybe we can convert it into a series
of if-else-ifs?

> New Namenode UI FS browser should throw smarter error messages
> --------------------------------------------------------------
>
>                 Key: HDFS-5935
>                 URL: https://issues.apache.org/jira/browse/HDFS-5935
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.3.0
>            Reporter: Travis Thompson
>            Assignee: Travis Thompson
>            Priority: Minor
>         Attachments: HDFS-5935-1.patch
>
>
> When browsing using the new FS browser in the namenode, if I try to browse a folder that
I don't have permission to view, it throws the error:
> {noformat}
> Failed to retreive data from /webhdfs/v1/system?op=LISTSTATUS, cause: Forbidden
> WebHDFS might be disabled. WebHDFS is required to browse the filesystem.
> {noformat}
> The reason I'm not allowed to see /system is because I don't have permission, not because
WebHDFS is disabled.



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