The Forensic Audit Lab: Engineering the Perfect Ledger

The Forensic Audit Lab: Engineering the Perfect Ledger is a highly technical explainer video based on Chapter 12 (Digital Wallet). Presented from the perspective of a tech lead, it frames the design of a massive-scale digital wallet backend as a "forensic financial audit lab" where every transfer leaves an immutable, reconstructable trail.

Key concepts covered include:

Architecture: Moving from simple in-memory sharding to Event Sourcing and CQRS to achieve 1 million transactions per second.
Consensus & Reliability: Using the Raft consensus algorithm for leader/follower replication and fault tolerance.
Distributed Transactions: Exploring the trade-offs between Two-Phase Commit (2PC), TC/C, and the Saga pattern for cross-partition transfers.
Financial Precision: Why floating-point values should never be used to represent money.
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Видео The Forensic Audit Lab: Engineering the Perfect Ledger канала _jeffrit