[ 
https://issues.apache.org/jira/browse/HADOOP-6870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12892387#action_12892387
 ] 

Doug Cutting commented on HADOOP-6870:
--------------------------------------

The next() method in the iterator for FileSystem#listStatus() still returns a 
LocatedFileStatus when getFileBlockLocations() throws an exception.  I think 
throwing an exception here would be better.  The list() method in that class 
also still swallows exceptions that should probably be thrown.

> Unit tests for recursive listing of symbolic links will be added after 
> HADOOP-6872 is fixed.

Can't we test this independently?  There are other symlink-based unit tests 
independent of HDFS.


> Add FileSystem#listLocatedStatus to list a directory's content together with 
> each file's block locations
> --------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-6870
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6870
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: fs
>    Affects Versions: 0.22.0
>            Reporter: Hairong Kuang
>            Assignee: Hairong Kuang
>             Fix For: 0.22.0
>
>         Attachments: listFiles.patch, listFiles1.patch
>
>
> This jira implements the new FileSystem API as proposed in HDFS-202. The new 
> API aims to eliminate individual "getFileBlockLocations" calls to NN for each 
> file in the input directory of a job. Instead, a file's block locations are 
> returned together with FileStatus when listing a directory, thus improving 
> getSplits performance.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.

Reply via email to