What are the best practices for sharding databases?

What are the best practices for sharding databases?

Sharding involves splitting a database into smaller, more manageable pieces. Best practices include choosing the right shard key, ensuring even data distribution, and planning for future growth.

How do I choose the right shard key?

The right shard key should ensure even distribution of data and minimize cross-shard queries. Consider access patterns and data size.

What are the common pitfalls to avoid when sharding?

Common pitfalls include choosing a poor shard key, not monitoring shard performance, and failing to plan for rebalancing shards.

Can you explain how to rebalance shards?

Rebalancing shards involves redistributing data across shards to maintain performance. This can be done by moving data from overloaded shards to underutilized ones.