httpproxy

const (
	// DefaultMaxIdleConnsPerHost indicates the default maximum idle connection
	// count maintained between proxy and each member. We set it to 128 to
	// let proxy handle 128 concurrent requests in long term smoothly.
	// If the number of concurrent requests is bigger than this value,
	// proxy needs to create one new connection when handling each request in
	// the delta, which is bad because the creation consumes resource and
	// may eat up ephemeral ports.
	DefaultMaxIdleConnsPerHost = 128
)