[GitHub] [incubator-pinot] mr-agrwal opened a new issue #6028: Make BrokerReduceService.reduceOnDataTable Multi Threaded to increase aggregation performance

[GitBox]

mr-agrwal opened a new issue #6028:
URL: https://github.com/apache/incubator-pinot/issues/6028


   Right now for some heavy Distinct Count Group By queries, we see a 
bottleneck in Broker performance.
   This can be improved by converting the Broker Aggregation Phase from 
single-threaded to multi-threaded.
   <img width="1237" alt="Screen Shot 2020-09-17 at 8 09 47 AM" 
src="https://user-images.githubusercontent.com/24796847/93490971-c3f66600-f926-11ea-9af7-dc43cd98a4d7.png";>
   


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