Part 2: Data

In Chapter 3, we first discuss colocation strategies, ranging from geographical considerations to intra-node optimizations, including kernel-bypass networking, which reduces latency by moving data closer to the compute node.

Chapter 4 covers replication techniques, consistency models, and approaches such as single-leader and multi-leader replication, which reduce latency by maintaining multiple copies of the data.

We then move in Chapter 5 to discuss partitioning strategies, including both physical and logical approaches, as well as request routing techniques, which reduce latency by eliminating contention on data.

Finally, Chapter 6 concludes this section with comprehensive caching strategies, ranging from cache-aside to distributed caching, along with coherency and replacement policies. These strategies aim to optimize latency by maintaining multiple copies of data, but with different trade-offs compared to replication.