Welcome!

Weblogic Authors: Yeshim Deniz, Elizabeth White, Michael Meiner, Michael Bushong, Avi Rosenthal

Related Topics: Agile Computing

Agile Computing: Blog Feed Post

One Line of Code That Changed the Web Forever

What impact will the emerging WebSocket standard have on the Web?

After presenting to a partner of Kaazing last week I got asked what impact the emerging WebSocket standard would have on the Web, assuming we continue down the path that has already been laid out.

The impact could be the same, or even more profound, as when we were first introduced to HTTP as a means to share static documents. The difference is that this time the targeted market is already defined – it is called the Web. I have over the past several years, half jokingly and half seriously, compared the current static Web with a push to talk radio (aka Walkie Talkie) and the new living Web with a cell phone. You can get by with the WT and solve most of your problems; after all it’s been around for a while and it works. If you want to communicate with a friend in “real-time” you can solve it by getting two WTs, one to talk and one to listen. With a new Web standard, WebSocket, entering the market, Web developers now have access to the equivalent of a cellphone – one channel for “talk” and “listen”.

What would you choose if both push-to-talk and cell phone were  available to you? What would developers choose if both technologies were readily available to them (e.g.: browser support)?

Well, if you are uncertain and feel like WebSocket is an unproven standard you might want to relate to this; remember the first time your friends started pushing you to buy a cellphone although you already had a stationary phone at home and one at the office that worked perfectly? Now several years later we all have at least one cell phone, each, and we can’t (at least I can’t) live without it.

This is exactly the same impact the following line of code will have on the Web in comparison with the current HTTP communication we are so used and accustomed too.

var mySocket = new WebSocket("ws://websocket.org/");

If you do understand the profound impact this one line of code will have you are in good shape and most likely are already using, extending, or pushing this new standard solution from W3C and IETF. If you are not, then let me take a short moment to explain why it is so important:

  1. HTTP was designed to deliver static documents, not to deliver transactional, dynamic, and real-time data updates.
  2. HTTP is by design stateless, so session state needs to be artificially maintained. Traditionally this is done by a legacy Web-tier solution such as an application server like Oracle WebLogic Server or IBM WebSpere.
  3. In every environment developers have access to a “socket” interface, which enables them to communicate using any format (read protocol) over a full-duplex connection. Not on the Web.
  4. Not having access to a standard, Web-friendly, socket API forces us to create transformation layers when sending data from a Web client, using HTTP, to a backend system relying on a different full-duplex TCP protocol e.g. XMPP, STOMP, AMQP.
  5. The above line of code opens the floodgates to use any TCP-based communication format, which in turn enables developers to freely innovate and create new types of Web applications that previously have not been feasible over the existing HTTP infrastructure.
  6. WebSocket offers a far better use of bandwidth by getting rid of unnecessary HTTP headers when information is shared. The improvement is at a ratio of up to 1000x.
  7. The latency to deliver data is greatly improved by eliminating the round trip of the HTTP request-response model, and by using the bandwidth more efficiently.

With the explosive growth of Web-enabled devices (yes, I’m thinking about the iPhone, iPad, Android, Galaxy, etc…) and the demand for more and live information, communication and distribution of data over the Web is growing exponentially. At this rate the growth of data distributed over the Web will out pace the performance principals of Moore’s Law, which we depend on to ensure that our hardware can keep up with our needs.

WebSocket traffic vs. HTTP traffic

For individuals this may not be too much of a concern, but for companies providing online services it will be, and already is, a huge and costly issue since it requires a tremendous amount of resources to deliver on the increasing demand for live information over the Web (read about Google’s move and Facebook’s move).

For example, when a user enters a single character ‘a’ in a search engine, a drop down list appears automatically showing possible search results starting with letter ‘a’. Behind the scenes an HTTP request has been issued asking the server for the information displayed in the drop down list. For every new character entered a new HTTP request is issued to the server to request for more information. The same HTTP characteristics you can find in collaborative online documents such as Google Docs, where each character entered generates a POST to ensure that users editing or looking at the same document can see each other changes in real-time.

Now, what was sent, what was received, and what was really needed?

There is a great article on websocket.org, called a “Quantum Leap in Scalability for the Web” that is outlining the difference between HTTP and WebSocket in terms of bandwidth utilization. In this article the sample application is a simple trading solution, but the math can be applied to any HTTP-based dynamic and transactional Web application.

In the article we have 0,665Gbps in header traffic to respond to 100,000 users per request.

What is the impact of using WebSocket technology? There are no sizable headers involved passing information between a client and a Websocket Gateway. Let’s apply the above math example to WebSocket technology as described by the article:

100,000 visitors receiving an update every second.  (WS wireframe = 2 byte) * 100,000 * 8 = 1,600,000 bps (0.001526Gbps).

Results from this easy math:

HTTP:// = 0,665Gbps versus WS:// = 0.001526Gbps.  In the above sample Websocket communication is 436 times more efficient. 436 times! We are talking about a gigantic leap of improvement, and that assuming that your cookies are not adding more data than this sample.

WebSocket is not a better Ajax!

Not only is the new standard improving bandwidth utilization it also gives us the ability to use any TCP-based high level communication format for our Web applications. This part of the HTML5 WebSocket standard has still yet to be fully appreciated. Right now most solutions and developers tinkering with the WebSocket APIs are looking at the new standard as merely a better replacement of XHR, or Ajax, when in fact it is a quantum leap forward in communicating over the Web that cannot be compared to XHR. With WebSocket we can now build client libraries in any Web technology supporting any TCP-based protocols. A simple example would be to extend the now widely used chat protocol XMPP to the Web (here is a demo site that lets you log in to Google Talk using XMPP over WebSocket) by providing a client-side implementation on top of Websocket APIs, or an advanced example would be to extend Java Message Service (JMS) over WebSocket such as the Kaazing WebSocket Gateway.

Scaling a WebSocket Solution

Web developers have been trying to work around the limitations of HTTP since the early days using techniques such as Comet, Reverse Ajax, or HTTP Streaming. With a move to persistent connections, or a stateful Web, server scalability of concurrent connections has been, and still is, a serious concern. Holding on to a thread on the server while the thread is not in use, combined with an Web-tier and infrastructure that was not designed for this, is not necessarily a scalable combination. Now, great strides have been made to ensure better scalability across technology stacks such as the use of NIO in Java.

At Kaazing we have always taken scalability and performance extremely serious and focused on making sure that our software is not in the way of scale or performance. As a matter of fact, we did a benchmark over the new year 2008/2009, to prove that scaling a WebSocket solution with persistent connections was not an issue, so we brought in a Java performance expert – Kirk Pepperdine – to help us and by the first weeks of Jan 09 we were running 1,000,000 concurrent connections on one single server. Now, is this practical? A more realistic scenario is running 1,000,000 users on a single rack or half a rack. This would enable us to have failover and high-availability, while still providing great performance and scale. So, last year we ran new tests together with DELL and Tibco to ensure not only great scale but also outstanding performance: DELL, Tibco, and Kaazing enable ‘The Fastest Million’ to revolutionize real-time data delivery over the Web.

In Conclusion

The simplest design ideas are often the innovations with the most impact. WebSocket as an idea and design is extremely “simple” and its impact on our industry will be profound. Of course, with simple ideas you also get the “doubters”. I remember one time when my co-founder John Fallows and I met with a renowned VC in Silicon Valley and he asked us:

“If this is such a great idea why has no one come up with this idea before?”

I guess you could ask humanity a similar question about why it took several thousands of years to invent the wheel – after all it’s so obvious and simple.

What is important to understand is that we now have at our disposal a very powerful tool that will enable us to communicate securely with anything over the Web, and that it is only our own imagination that will limit our ability to fully exploit the WebSocket standard to its full potential.

If you are having performance and scalability issues with your current Web solution then it is time to look at an enterprise WebSocket platform, such as the one Kaazing provides. To round off I’m just going to ask you one short question:

If you had a choice between building a Web application using HTTP and Websocket, and both were readily available to you, which one would you choose?

Read the original blog entry...

More Stories By Kaazing Blog

Kaazing is helping define the future of the event-driven enterprise by accelerating the Web for the Internet of Things.

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


@ThingsExpo Stories
SYS-CON Events announced today that CA Technologies has been named “Platinum Sponsor” of SYS-CON's 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. CA Technologies helps customers succeed in a future where every business – from apparel to energy – is being rewritten by software. From planning to development to management to security, CA creates software that fuels transformation for companies in the applic...
Internet of @ThingsExpo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 21st Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devic...
WebRTC is great technology to build your own communication tools. It will be even more exciting experience it with advanced devices, such as a 360 Camera, 360 microphone, and a depth sensor camera. In his session at @ThingsExpo, Masashi Ganeko, a manager at INFOCOM Corporation, will introduce two experimental projects from his team and what they learned from them. "Shotoku Tamago" uses the robot audition software HARK to track speakers in 360 video of a remote party. "Virtual Teleport" uses a...
SYS-CON Events announced today that Calligo has been named “Bronze Sponsor” of SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Calligo is an innovative cloud service provider offering mid-sized companies the highest levels of data privacy. Calligo offers unparalleled application performance guarantees, commercial flexibility and a personalized support service from its globally located cloud platform...
SYS-CON Events announced today that Elastifile will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Elastifile Cloud File System (ECFS) is software-defined data infrastructure designed for seamless and efficient management of dynamic workloads across heterogeneous environments. Elastifile provides the architecture needed to optimize your hybrid cloud environment, by facilitating efficient...
SYS-CON Events announced today that Cloudistics, an on-premises cloud computing company, has been named “Bronze Sponsor” of SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Launched in 2016, Cloudistics helps anyone bring the power of the cloud to the data center in an easy-to-use, on- premises cloud platform that automatically provides high performance resources for all types of applications: Docke...
SYS-CON Events announced today that Golden Gate University will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Since 1901, non-profit Golden Gate University (GGU) has been helping adults achieve their professional goals by providing high quality, practice-based undergraduate and graduate educational programs in law, taxation, business and related professions. Many of its courses are taug...
SYS-CON Events announced today that Golden Gate University will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Since 1901, non-profit Golden Gate University (GGU) has been helping adults achieve their professional goals by providing high quality, practice-based undergraduate and graduate educational programs in law, taxation, business and related professions. Many of its courses are taug...
SYS-CON Events announced today that Secure Channels, a cybersecurity firm, will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Secure Channels, Inc. offers several products and solutions to its many clients, helping them protect critical data from being compromised and access to computer networks from the unauthorized. The company develops comprehensive data encryption security strategie...
Recently, WebRTC has a lot of eyes from market. The use cases of WebRTC are expanding - video chat, online education, online health care etc. Not only for human-to-human communication, but also IoT use cases such as machine to human use cases can be seen recently. One of the typical use-case is remote camera monitoring. With WebRTC, people can have interoperability and flexibility for deploying monitoring service. However, the benefit of WebRTC for IoT is not only its convenience and interopera...
SYS-CON Events announced today that SkyScale will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. SkyScale is a world-class provider of cloud-based, ultra-fast multi-GPU hardware platforms for lease to customers desiring the fastest performance available as a service anywhere in the world. SkyScale builds, configures, and manages dedicated systems strategically located in maximum-security...
SYS-CON Events announced today that Datera will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Datera offers a radically new approach to data management, where innovative software makes data infrastructure invisible, elastic and able to perform at the highest level. It eliminates hardware lock-in and gives IT organizations the choice to source x86 server nodes, with business model option...
SYS-CON Events announced today that DXWorldExpo has been named “Global Sponsor” of SYS-CON's 21st International Cloud Expo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Digital Transformation is the key issue driving the global enterprise IT business. Digital Transformation is most prominent among Global 2000 enterprises and government institutions.
21st International Cloud Expo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Me...
SYS-CON Events announced today that Massive Networks will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Massive Networks mission is simple. To help your business operate seamlessly with fast, reliable, and secure internet and network solutions. Improve your customer's experience with outstanding connections to your cloud.
When shopping for a new data processing platform for IoT solutions, many development teams want to be able to test-drive options before making a choice. Yet when evaluating an IoT solution, it’s simply not feasible to do so at scale with physical devices. Building a sensor simulator is the next best choice; however, generating a realistic simulation at very high TPS with ease of configurability is a formidable challenge. When dealing with multiple application or transport protocols, you would be...
SYS-CON Events announced today that Akvelon will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Akvelon is a business and technology consulting firm that specializes in applying cutting-edge technology to problems in fields as diverse as mobile technology, sports technology, finance, and healthcare.
SYS-CON Events announced today that Secure Channels, a cybersecurity firm, will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Secure Channels, Inc. offers several products and solutions to its many clients, helping them protect critical data from being compromised and access to computer networks from the unauthorized. The company develops comprehensive data encryption security strategie...
SYS-CON Events announced today that WineSOFT will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Based in Seoul and Irvine, WineSOFT is an innovative software house focusing on internet infrastructure solutions. The venture started as a bootstrap start-up in 2010 by focusing on making the internet faster and more powerful. WineSOFT’s knowledge is based on the expertise of TCP/IP, VPN, SS...
WebRTC is the future of browser-to-browser communications, and continues to make inroads into the traditional, difficult, plug-in web communications world. The 6th WebRTC Summit continues our tradition of delivering the latest and greatest presentations within the world of WebRTC. Topics include voice calling, video chat, P2P file sharing, and use cases that have already leveraged the power and convenience of WebRTC.