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https://issues.apache.org/jira/browse/MAPREDUCE-4133?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13251871#comment-13251871
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John George commented on MAPREDUCE-4133:
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I do not know why the build failed. It seems odd because I can get it to 
compile fine on my trunk view. 

Also, I am finding it difficult to write test for this, especially since this 
should have been part of HADOOP-8014 change and that has separate viewfs tests 
associated with it. 
                
> MR over viewfs is broken
> ------------------------
>
>                 Key: MAPREDUCE-4133
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4133
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 0.23.3, 2.0.0
>            Reporter: John George
>            Assignee: John George
>         Attachments: MR-4133.patch
>
>
> After the changes in HADOOP-8014 went in, MR programs using viewfs broke. 
> This is because, viewfs now expects getDefaultBlockSize, 
> getDefaultReplication, and getServerDefaults to pass in a {{path}} as an 
> argument. In the existing MR source, these are called with no arguments.

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