Redis cluster with multiple shards

Hi There,
For each node in the cluster, there is a limit of 65000 connections at a time.
This value is specified in the Parameter group of the cluster with parameter named "maxclients".
This value is fixed and cannot be changed
You can look up maxclients in https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/ParameterGroups.Redis.html#w144aac20c45c51c45b7

Hope this is helpful.

Thanks for the answer.