Hashing
Consistent hashing uses a hash function to convert a data item’s key into a numerical value. This value is then mapped onto a ring or circle, where each point on the ring represents a possible location for a shard. The hash function ensures that similar keys are likely to be mapped to nearby points on the ring, providing a degree of data locality.
Is Consistent Hashing used in Sharding?
Yes, Consistent Hashing is commonly used in Sharding to distribute data across multiple shards consistently and efficiently. Consistent hashing and Sharding are both fundamental concepts in distributed systems and databases, each serving distinct purposes. Below is how Consistent Hashing works with Sharding.