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From Íñigo Goiri (JIRA) <j...@apache.org>
Subject [jira] [Commented] (HDFS-13045) RBF: Improve error message returned from subcluster
Date Mon, 09 Apr 2018 21:25:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-13045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16431311#comment-16431311

Íñigo Goiri commented on HDFS-13045:

Thanks [~ywskycn], I added the stack trace too.
Regarding the corner case, I added a unit test covering it.
Not particularly happy about adding it in the middle of that unit test but not sure what better
Let me know if you have comments on  [^HDFS-13045.003.patch].

> RBF: Improve error message returned from subcluster
> ---------------------------------------------------
>                 Key: HDFS-13045
>                 URL: https://issues.apache.org/jira/browse/HDFS-13045
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Wei Yan
>            Assignee: Wei Yan
>            Priority: Minor
>         Attachments: HDFS-13045.000.patch, HDFS-13045.001.patch, HDFS-13045.002.patch,
> Currently, Router directly returns exception response from subcluster to client, which
may not have the correct error message, especially when the error message containing a path.
> One example, we have a mount path "/a/b" mapped to subclusterA's "/c/d". If user1 does
a chown operation on "/a/b", and he doesn't have corresponding privilege, currently the
error msg looks like "Permission denied. user=user1 is not the owner of inode=/c/d", which
may confuse user. Would be better to reverse the path back to original mount path.

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