Scaling databases horizontally is crucial for large systems. This post explores sharding concepts, benefits, and challenges.

Sharding Basics and Design

Dividing data into shards allows parallel processing and reduces contention on single nodes.

Choosing the Right Shard Key

Selecting effective shard keys balances load and minimizes cross-shard queries.

Handling Re-Sharding and Failover

Plan for changes in shard topology and implement mechanisms to ensure availability and consistency.