exception is redis.clients.jedis.exceptions.JedisNoReachableClusterNodeException: No reachable node in cluster

This error occurs when the Redis cluster cannot reach any of its nodes or none of the nodes are available to respond to requests. To resolve this, ensure that all nodes in the cluster are running and reachable from your application server, and that they are configured correctly with the correct IP addresses and ports. Additionally, check if there are any network issues between your application server and the Redis cluster nodes that may be preventing them from connecting properly.