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https://issues.apache.org/jira/browse/HADOOP-6591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12841967#action_12841967
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Rodrigo Schmidt commented on HADOOP-6591:
-----------------------------------------

The other problem I see is that HadoopArchives uses HarFileSystem.VERSION when 
it creates files. So, if we commit HarFileSystem.java first, HadoopArchives 
will generate old-style files with VERSION = 2. And if we commit 
HadoopArchives.java first, new-style files will be generated with VERSION 1 
(although the old HadoopArchives won't be able to read them properly). It's 
sort of a chicken-and-egg problem created because two java files that actually 
depend on each other ended up in two different hadoop projects (common and 
mapreduce). 

Sincerely, I don't understand why HarFileSystem is part of common.

For instance, in Raid, we made DistributedRaidFileSystem part of MAPREDUCE as 
well, partly to avoid this type or problem.

> HarFileSystem cannot handle paths with the space character
> ----------------------------------------------------------
>
>                 Key: HADOOP-6591
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6591
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Mahadev konar
>
> Since HarFileSystem is using " " as a separator in the index files, it won't 
> work if there are " " in the path.

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