Sharding

Splitting data across multiple machines to scale.

🎯 Goals

• Understand why and when sharding is needed
• Learn main sharding strategies and their trade-offs

📚 Checklist

• Define horizontal partitioning / sharding
• Compare range, hash, and directory sharding
• Understand resharding and data rebalancing
• Recognize hotspot problems and mitigation techniques

🔗 Related

• [[CAP Theorem]]
• [[Replication]]
• [[08 - Modern Databases]]