crossslot keys in request don't hash to the same slot ✓ Why can't some Redis instances use the KEYS command?

when I start my application I see this error throws from ioredis T12:03: ReplyError: CROSSSLOT Keys in request don't hash to the samecrossslot keys in request don't hash to the same slot,Change key names and use hash tags to ensure that the involved keys are in the same slot Avoid data skew when you use hash tags For more

In the sharded environment Redis setup will answer with an error ERR CROSSSLOT Keys in request don't hash to the same slot if keys we want to crossslot keys in request don't hash to the same slot,In the sharded environment Redis setup will answer with an error ERR CROSSSLOT Keys in request don't hash to the same slot if keys we want to

crossslot keys in request don't hash to the same slot,The error log means: The requested Key key is not hashed into the same slot The key space of the Redis cluster is divided into 16384 slots, and the maximum