Variable substitution depth too large for fs.default.name causes jobs to fail
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                 Key: MAPREDUCE-3736
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3736
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 0.23.1
            Reporter: Eli Collins
            Priority: Blocker


I'm seeing the same failure as MAPREDUCE-3462 in downstream projects running 
against a recent build of branch-23. MR-3462 modified the tests rather than 
fixing the framework. In that jira Ravi mentioned "I'm still ignorant of the 
change which made the tests start to fail. I should probably understand better 
the reasons for that change before proposing a more generalized fix." Let's 
figure out the general fix (rather than require all projects to set 
mapreduce.job.hdfs-servers in their conf we should fix this in the framework). 
Perhaps we should not default this config to "$fs.default.name"?

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