Transaction Internals: Fast Path vs Multi-Shard

In this session, we will delve into the intricate workings of transaction processing and explore the distinctions between YugabyteDB's "fast path" and "multi-shard" approaches. While SQL transactions can be complex, especially in distributed systems, NoSQL databases tend to avoid them, and certain NewSQL databases may not ensure global ACID properties. However, YugabyteDB, a Distributed SQL database, breaks through these challenges by delivering multi-shard transactions with strong consistency, secondary indexes, and foreign keys, at all isolation levels. We will elucidate how YugabyteDB achieves this while preserving scalability through the utilization of local or global transaction tables, rather than relying on a two-phase commit protocol. Furthermore, we will uncover the unique advantages of YugabyteDB's "fast path" mechanism, which seamlessly enables high-performance processing of simple transactions involving single rows or shards, while maintaining strong consistency. Join this session to gain a comprehensive understanding of transaction internals, and discover how YugabyteDB seamlessly combines the strengths of SQL and NoSQL databases to offer scalable, consistent, and feature-rich distributed transactions.