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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4839) add NativeIO#mkdirs, that provides an error message on failure
Date Sat, 14 Dec 2013 17:46:07 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13848417#comment-13848417
] 

Steve Loughran commented on HDFS-4839:
--------------------------------------

If this can be done in Java7 then its not worth doing here, unless a goal is to backport behaviour
to java6 runtimes.

Irrespective of how this is done, it changes the behaviour of local file:// operations when
things fail. While this is probably a good thing, it may break things. Perhaps it should just
be catch+log for now: logging can only be useful.

In which case, this could maybe be implemented with reflection today

> add NativeIO#mkdirs, that provides an error message on failure
> --------------------------------------------------------------
>
>                 Key: HDFS-4839
>                 URL: https://issues.apache.org/jira/browse/HDFS-4839
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 2.1.0-beta
>            Reporter: Colin Patrick McCabe
>            Priority: Minor
>
> It would be nice to have a variant of mkdirs that provided an error message explaining
why it failed.  This would make it easier to debug certain failing unit tests that rely on
mkdir / mkdirs-- the ChecksumFilesystem tests, for example.



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