Why does redis-cluster client not support recycling idle connetion

[tangdeyi]

Even though the IdleTimeout and IdleCheckFrequency is configured，the redis-cluster client does not work to recycle idle connection.
Because the following codes in gopkg.in/redis.v5/cluster.go:63

func (opt *ClusterOptions) clientOptions() *Options {
	const disableIdleCheck = -1
	return &Options{
		Password: opt.Password,
		ReadOnly: opt.ReadOnly,

		DialTimeout:  opt.DialTimeout,
		ReadTimeout:  opt.ReadTimeout,
		WriteTimeout: opt.WriteTimeout,

		PoolSize:    opt.PoolSize,
		PoolTimeout: opt.PoolTimeout,
		IdleTimeout: opt.IdleTimeout,

		// IdleCheckFrequency is not copied to disable reaper
		IdleCheckFrequency: disableIdleCheck,
	}
}

[tangdeyi]

solved，it is my usage error.