Tune tcp keep-alives with new kernel timeout options (#9963)

For more deeper understanding https://blog.cloudflare.com/when-tcp-sockets-refuse-to-die/

cmd/http/dial_others.go

@@ -21,18 +21,23 @@ package http
 import (
 	"context"
 	"net"
+	"syscall"
 	"time"
 )
 
+// TODO: if possible implement for non-linux platforms, not a priority at the moment
+func setTCPParameters(c syscall.RawConn) error {
+	return nil
+}
+
 // DialContext is a function to make custom Dial for internode communications
 type DialContext func(ctx context.Context, network, address string) (net.Conn, error)
 
 // NewCustomDialContext configures a custom dialer for internode communications
-func NewCustomDialContext(dialTimeout, dialKeepAlive time.Duration) DialContext {
+func NewCustomDialContext(dialTimeout time.Duration) DialContext {
 	return func(ctx context.Context, network, addr string) (net.Conn, error) {
 		dialer := &net.Dialer{
-			Timeout:   dialTimeout,
-			KeepAlive: dialKeepAlive,
+			Timeout: dialTimeout,
 		}
 		return dialer.DialContext(ctx, network, addr)
 	}