Hadoop ignores old-style config options for enabling compressed output
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                 Key: MAPREDUCE-3665
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3665
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 0.23.0
            Reporter: Anupam Seth
            Assignee: Anupam Seth


Hadoop seems to ignore the config options even though they are printed as 
deprecation warnings in the log:  mapred.output.compress and
mapred.output.compression.codec

-- settings that work on 0.20 but not on 0.23
mapred.output.compress=true
mapred.output.compression.codec=org.apache.hadoop.io.compress.BZip2Codec

-- settings that work on 0.23
mapreduce.output.fileoutputformat.compress=true
mapreduce.output.fileoutputformat.compress.codec=org.apache.hadoop.io.compress.BZip2Codec

This breaks backwards compatibility and causes existing jobs to fail.

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