[jira] Created: (HADOOP-1007) Names used for map, reduce, and shuffle metrics should be unique

[Nigel Daley (JIRA)]

Names used for map, reduce, and shuffle metrics should be unique
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                 Key: HADOOP-1007
                 URL: https://issues.apache.org/jira/browse/HADOOP-1007
             Project: Hadoop
          Issue Type: Improvement
          Components: metrics
    Affects Versions: 0.12.0
            Reporter: Nigel Daley
         Assigned To: Nigel Daley
            Priority: Trivial


The names used for map, reduce, and shuffle metrics currently overlap:

Map metrics:
  input_bytes 
  input_records 
  output_bytes 
  output_records 

Recduce metrics:
   input_records 
   output_records 

Shuffle metrics:
   input_bytes 

I propose that the metric names be unique:
  map_input_bytes 
  map_input_records 
  map_output_bytes 
  map_output_records 
  shuffle_input_bytes 
  reduce_input_records 
  reduce_output_records


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