Redis Cluster: an interesting problem about moving hash slots around

There are 16384 hash slots built into Redis When a key-value needs to be placed in the Redis cluster, redis first uses the crc16 algorithm to calculate a

Redis Cluster: an interesting problem about moving hash slots around 5 Hashing Hash Functions Given a collection of items, a hash function that maps each item into a unique slot is referred to as a perfect hash function

There are 16384 hash slots built into Redis When a key-value needs to be placed in the Redis cluster, redis first uses the crc16 algorithm to calculate a

five dragon slot png Each position of the hash table, often called a slot, can hold an item and is named by an integer value starting at 0 For example, we will have a slot named 0,

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hashtag slot CLUSTER GETKEYSINSLOT slot count The command returns an array of keys names stored in the contacted node and hashing to the specified hash slot

一、哈希槽介绍Redis Cluster在设计中没有使用一致性哈希（Consistency Hashing），而是使用数据分片引入哈希槽（hash slot）来实现； 一个Redis