How does Redis Sentinel or Redis Cluster affect connection error handling?

Redis Sentinel and Redis Cluster provide automatic failover capabilities. If the primary Redis server fails, Sentinel or Cluster will automatically promote a replica to become the new primary. Your Redis client should be configured to connect to Sentinel or Cluster, which will handle the failover process and redirect connections to the new primary. This minimizes downtime and reduces the impact of connection errors. Clients typically use a list of master/replica addresses and the Sentinel/Cluster will manage the connection details.