Hi, My topology is like the following -> *Spout -> Bolt A -> Bolt B -> Bolt C -> Bolt D*
the groupings between* Bolt C -> Bolt D* is a field grouping as Bolt D is doing an aggregation while everything else is a shuffleGrouping. Use Case: If the spout emits 100K tuples such that the emits all are grouped on the same field, then Bolt D will need to take all the load and hence becomes very slow. IN this case, increasing the no. of instances of Bolt D will not help as the grouping is for the instance of Bolt D. Question: How can this be optimized? Did anyone face such a use case? Please recommend. Thanks Kashyap