Sahil Takiar created HIVE-18690:

             Summary: Integrate with Spark OutputMetrics
                 Key: HIVE-18690
             Project: Hive
          Issue Type: Sub-task
          Components: Spark
            Reporter: Sahil Takiar

Spark has an {{OutputMetrics}} it uses to expose records / bytes written. We 
currently don't integrate with it and the Spark UI shows a blank value for 
output records / bytes. We have our own customer accumulators instead (like 

Spark exposes the {{OutputMetrics}} object inside individual tasks via the 
{{TaskContext.get()}} method. We can use this method to access the 
{{OutputMetrics}} object and update it.

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