What are some real-world examples of database sharding?

What are some real-world examples of database sharding?

Database sharding is a method of distributing data across multiple servers. Some notable case studies include Twitter, which sharded its database to handle massive user growth, and eBay, which implemented sharding to improve performance and scalability.

How did Twitter implement sharding?

Twitter used a technique called horizontal sharding, where user data is split across multiple databases based on user ID ranges. This allowed them to scale their infrastructure as their user base grew.

What challenges did they face during this process?

Twitter faced challenges like data consistency, managing cross-shard queries, and ensuring seamless user experience during the transition to sharding.

Are there any other companies that successfully used sharding?

Yes, companies like Netflix and LinkedIn have also successfully implemented sharding to manage their large datasets and improve performance.