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https://issues.apache.org/jira/browse/HADOOP-7659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13730358#comment-13730358
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Konstantin Boudnik commented on HADOOP-7659:
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Harsh, do you need a help on this? I can backport the patch into branch-2
unless you're planning to do it.
> fs -getmerge isn't guaranteed to work well over non-HDFS filesystems
> --------------------------------------------------------------------
>
> Key: HADOOP-7659
> URL: https://issues.apache.org/jira/browse/HADOOP-7659
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Affects Versions: 0.20.204.0
> Reporter: Harsh J
> Assignee: Harsh J
> Priority: Minor
> Fix For: 3.0.0
>
> Attachments: HADOOP-7659.patch
>
>
> When you use {{fs -getmerge}} with HDFS, you are guaranteed file list sorting
> (part-00000, part-00001, onwards). When you use the same with other FSes we
> bundle, the ordering of listing is not guaranteed at all. This is cause of
> http://download.oracle.com/javase/6/docs/api/java/io/File.html#list() which
> we use internally for native file listing.
> This should either be documented as a known issue on -getmerge help
> pages/mans, or a consistent ordering (similar to HDFS) must be applied atop
> the listing. I suspect the latter only makes it worthy for what we include -
> while other FSes out there still have to deal with this issue. Perhaps we
> need a recommendation doc note added to our API?
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