Become a Remote Senior Software Engineer with a Job Guarantee: Learn how to handle massive datasets and high traffic loads with database replication and sharding. 🔖 Sections 0:00 Biggest challenge of designing large scale systems 0:23 Replication 1:02 Leader-Follower Replication 1:28 Leader-Leader Replication 1:47 Async vs Sync Replications 2:25 Scaling Writes 2:58 Conflict Resolution Mechanisms 3:35 Sharding 4:55 Shard Keys 5:45 SQL vs NoSQL Sharding 6:17 Summary