Redis Cluster multi-key command optimisation with hash tags

The values returned by a hash function are called hash values, hash codes, hash sums, or simply hashes hashing function and the slot at that index is already

在搭建版本的集群环境曾出现各节点无法互相发现与Hash槽分配异常CLUSTERDOWN Hash slot not served的情况，故而把解决方式记录下来。

hash slot The crossslot keys in request don't hash to the same slot error occurs when you try to perform an operation that involves multiple keys in a Redis Cluster, but

slotฟรี hash slot ” Within the cluster, there are 16,384 hash slots available Those slots are divided amongst the total number of shards in the cluster