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Our proposal is in a way also trying to reduce the state size of Kafka broker by uploading more recent log segments onto object storage but we are implementing it in a more conservative way.

Note that we mentioned KIP-1150 in the Rejected Alternative section but we don't view this KIP and KIP-1150 are all-or-nothing alternatives, they are optimized for different use cases (this KIP proposal are optimizing for low-latency acks=1 use case while KIP-1150 is optimizing for a longer latency but diskless implementation), we believe some of the ideas or implementations can be learned or adopted by both KIPs.

Appendix: Cost Estimate for a typical workload

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See the following table for cost comparison.  The charge is per month per kafka broker

The result is ~43% reduction in cost.

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