I think you can use kafka streams to create whatever projections you want. Kafka can handle millions of small records per second. You can use the Kafka streams

I think you can use kafka streams to create whatever projections you want. Kafka can handle millions of small records per second. You can use the Kafka streams api to process all your data either into local rocks db stores or write the data to whatever database you want. This requires some work but then you have a good thing going if it works.