Data partition and replication
Play this lessonThis lesson comes with an interactive animation you can break and a chapter quiz.Partitioning: the data is too big for one server, so split it. The two challenges, distributing data evenly and moving as little as possible when nodes change, are solved by consistent hashing (Chapter 5). Bonus benefits: automatic scaling (add or remove servers with little data movement) and heterogeneity (more powerful servers get more virtual nodes).
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