Consistent Hashing
Explore the concept of consistent hashing to understand how it efficiently distributes keys across nodes in distributed systems, reducing remapping when nodes change. Learn about hash rings, node assignment, virtual nodes, and their impact on system scalability and performance.
Consistent hashing is a popular algorithm and databases such as DynamoDB, Cassandra, ScyllaDB, and Riak use this algorithm to scale systems. In this lesson, we will explain the algorithm.
What is consistent hashing?
Consistent hashing is a hashing algorithm in which only keys are remapped if the number of nodes changes. Here is the number of keys and ...