Real-Time Ledger Systems: Scaling a Double-Entry Ledger for a Massive PSP

Scaling a Double-Entry Ledger for a Massive PSP &#xA; In Part 1 , we built a real-time double-entry&#xA;ledger using optimistic locking. We benchmarked it and found it handles 160-440 req/sec depending&#xA;on contention, with zero errors and stable tail latencies. But benchmarks on localhost are one&#xA;thing. Production at PSP scale is another. &#xA; This post answers the question: Can this…