3 publication(s), engineering notes, and curated picks tagged with #storage-engines.
Double-entry accounting engine & strong consistency in the face of CAP theorem
How Uber re-engineered its global payments platform across 10,000+ cities using immutable double-entry ledger bookkeeping to guarantee financial accuracy and zero downtime under massive scale.
Petabyte-scale zero-downtime migration of trillions of financial records
The multi-year architectural journey of migrating petabytes of immutable financial ledger records from Amazon DynamoDB to Uber’s in-house distributed database, Docstore, saving $6M+ annually.
The Big Ideas Behind Reliable, Scalable, and Maintainable Systems
Deep-dive into database engine internals, LSM-trees vs B-Trees, partitioning mechanics, distributed replication, consensus protocols (Raft/Paxos), and stream processing primitives.
