Why can't some Redis instances use the KEYS command?

Why can't some Redis instances use the KEYS command? redis crossslot keys in request don't hash to the same slot keys belong to different slots, an error occurs CROSSSLOT Keys in request don't hash to the same slot We recommend that you perform redis crossslot keys in request don''t hash to the same slot $ redis-cli -p 30001 -c :30001> MSET one 1 two 2 three 3 CROSSSLOT Keys in request don't hash to the same slot To solve this problem

redis crossslot keys in request don''t hash to the same slot When we try to run the script on a Redis Cluster, it will return this error: ERR CROSSSLOT Keys in request don't hash to the same slot At

redisexceptionsresponseerror_ crossslot keys in request don''t hash to the same slot They can run in cluster mode, and are not able to run commands accessing keys of different hash slots allow-cross-slot-keys : The flag that allows a Redis集群报错： CROSSSLOT Keys in request don't hash to the same slot 的解决办法，Redis哈希槽基本概念哈希槽是