CODEWITHSUNDEEP
socketstomcatjetty
Justin Khoo
Justin Khoo

Reputation: 3251

Setting socket send buffer size on Tomcat/Jetty

Is there a way I can set the send buffer size for the HTTP listener/response sockets created by Tomcat or Jetty? (ie. SO_SNDBUF). Apologies if I'm getting the terminology wrong.

Update:

After googling around and with @Joakim's help I found this:

http://wiki.eclipse.org/Jetty/Howto/Configure_Connectors

and

Slow transfers in Jetty with chunked transfer encoding at certain buffer size

The question then is are the "buffer size" referred by the Jetty.xml config as well as the HttpServletResponse.setBufferSize() the same as the socket "send buffer size"?

Update 2:

Reading more I think neither affect the socket buffer size and its just another buffer the servlet container uses before sending it over to the Socket.

Upvotes: 0

Views: 3202

Answers (2)

gil
gil

Reputation: 181

In Jetty 9 with spring it can be done with:

@Configuration

public class CustomJettyConfiguration {

@Bean
public EmbeddedServletContainerCustomizer customizer() {
    return new EmbeddedServletContainerCustomizer() {

        @Override
        public void customize(ConfigurableEmbeddedServletContainer container) {
            if (container instanceof JettyEmbeddedServletContainerFactory) {
                customizeJetty((JettyEmbeddedServletContainerFactory) container);
            }
        }

        private void customizeJetty(JettyEmbeddedServletContainerFactory jetty) {
            jetty.addServerCustomizers(new JettyServerCustomizer() {

                @Override
                public void customize(Server server) {
                    for (Connector connector : server.getConnectors()) {
                        if (connector instanceof ServerConnector) {
                            HttpConnectionFactory connectionFactory = ((ServerConnector) connector)
                                    .getConnectionFactory(HttpConnectionFactory.class);
                            connectionFactory.getHttpConfiguration()
                                    .setResponseHeaderSize(16 * 1024);
                        }
                    }
                }
            });
        }
    };

}

}

Upvotes: 1

Joakim Erdfelt
Joakim Erdfelt

Reputation: 49452

Jetty has no support for Socket.setSendBufferSize() in any version of Jetty.

You can however, provide your own implementation of a Connector to do just that.

Start by extending SocketConnector in which you provide your own .configure(Socket) implementation that does Socket.setSendBufferSize(int).

Upvotes: 0

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