redis
Redis cluster CROSSSLOT error
Redis.*ERR Error running script.*CROSSSLOT Keys in request don't hash to the same slot
Fixes
- 1.Use hash tags to force keys to same slot: {user:1}:profile, {user:1}:settings
- 2.Split multi-key operation into per-slot operations
- 3.Use EVAL with keys from the same hash slot only
redisclusterslots
Related Errors
redis3 fixes
Redis operation on wrong data type
Redis.*WRONGTYPE Operation against a key holding the wrong kind of value
- •Check key type with TYPE command before operating
- •Delete and recreate key if type needs to change
redis3 fixes
Redis cluster is down
Redis.*CLUSTERDOWN.*The cluster is down
- •Check cluster health: redis-cli --cluster check <host>:<port>
- •Verify all master nodes have sufficient slots assigned
redis3 fixes
Redis still loading dataset into memory
Redis.*LOADING Redis is loading the dataset in memory
- •Wait for Redis to finish loading (check with INFO persistence)
- •Reduce dataset size or increase memory for faster load