Redis ERR

What is Redis ERR

Check the Redis server's health and availability: redis-cli ping. If you don't get a PONG response, the server might be down or not reachable.Review the last error messages in Redis logs: tail -n 100 /var/log/redis/redis-server.log (path may vary).Check for memory usage and limits: redis-cli info memory. Look for the used_memory and maxmemory settings to ensure you're not hitting memory limits.Verify if the Redis server is under high load: redis-cli info stats and check instantaneous_ops_per_sec for operations per second. High numbers could indicate overload.If write operations fail, ensure the disk is not full if Redis is configured for persistence: df -h.For connection issues, use redis-cli info clients to check active connections and see if you're hitting the maxclients limit.If using Redis in a cluster, check the cluster's status: redis-cli cluster info and redis-cli cluster nodes to ensure all nodes are up and connected.