|By Kaazing Blog||
|January 29, 2013 01:29 PM EST||
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:
- HTTP was designed to deliver static documents, not to deliver transactional, dynamic, and real-time data updates.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
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?
"delaPlex is a software development company. We do team-based outsourcing development," explained Mark Rivers, COO and Co-founder of delaPlex Software, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 29, 2016 01:00 PM EDT Reads: 2,079
ReadyTalk has expanded the capabilities of the FoxDen collaboration platform announced late last year to include FoxDen Connect, an in-room video collaboration experience that launches with a single touch. With FoxDen Connect, users can now not only engage in HD video conferencing between iOS and Android mobile devices or Chrome browsers, but also set up in-person meeting rooms for video interactions. A host’s mobile device automatically recognizes the presence of a meeting room via beacon tech...
Jul. 29, 2016 12:15 PM EDT Reads: 228
On Dice.com, the number of job postings asking for skill in Amazon Web Services increased 76 percent between June 2015 and June 2016. Salesforce.com saw its own skill mentions increase 37 percent, while DevOps and Cloud rose 35 percent and 28 percent, respectively. Even as they expand their presence in the cloud, companies are also looking for tech professionals who can manage projects, crunch data, and figure out how to make systems run more autonomously. Mentions of ‘data science’ as a skill ...
Jul. 29, 2016 11:46 AM EDT Reads: 278
SYS-CON Events announced today that LeaseWeb USA, a cloud Infrastructure-as-a-Service (IaaS) provider, will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. LeaseWeb is one of the world's largest hosting brands. The company helps customers define, develop and deploy IT infrastructure tailored to their exact business needs, by combining various kinds cloud solutions.
Jul. 29, 2016 11:15 AM EDT Reads: 1,339
Amazon has gradually rolled out parts of its IoT offerings in the last year, but these are just the tip of the iceberg. In addition to optimizing their back-end AWS offerings, Amazon is laying the ground work to be a major force in IoT – especially in the connected home and office. Amazon is extending its reach by building on its dominant Cloud IoT platform, its Dash Button strategy, recently announced Replenishment Services, the Echo/Alexa voice recognition control platform, the 6-7 strategic...
Jul. 29, 2016 11:15 AM EDT Reads: 674
The cloud market growth today is largely in public clouds. While there is a lot of spend in IT departments in virtualization, these aren’t yet translating into a true “cloud” experience within the enterprise. What is stopping the growth of the “private cloud” market? In his general session at 18th Cloud Expo, Nara Rajagopalan, CEO of Accelerite, explored the challenges in deploying, managing, and getting adoption for a private cloud within an enterprise. What are the key differences between wh...
Jul. 29, 2016 09:45 AM EDT Reads: 2,130
For basic one-to-one voice or video calling solutions, WebRTC has proven to be a very powerful technology. Although WebRTC’s core functionality is to provide secure, real-time p2p media streaming, leveraging native platform features and server-side components brings up new communication capabilities for web and native mobile applications, allowing for advanced multi-user use cases such as video broadcasting, conferencing, and media recording.
Jul. 29, 2016 09:45 AM EDT Reads: 1,031
SYS-CON Events announced today that Venafi, the Immune System for the Internet™ and the leading provider of Next Generation Trust Protection, will exhibit at @DevOpsSummit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Venafi is the Immune System for the Internet™ that protects the foundation of all cybersecurity – cryptographic keys and digital certificates – so they can’t be misused by bad guys in attacks...
Jul. 29, 2016 09:45 AM EDT Reads: 1,468
There will be new vendors providing applications, middleware, and connected devices to support the thriving IoT ecosystem. This essentially means that electronic device manufacturers will also be in the software business. Many will be new to building embedded software or robust software. This creates an increased importance on software quality, particularly within the Industrial Internet of Things where business-critical applications are becoming dependent on products controlled by software. Qua...
Jul. 29, 2016 07:15 AM EDT Reads: 1,645
In addition to all the benefits, IoT is also bringing new kind of customer experience challenges - cars that unlock themselves, thermostats turning houses into saunas and baby video monitors broadcasting over the internet. This list can only increase because while IoT services should be intuitive and simple to use, the delivery ecosystem is a myriad of potential problems as IoT explodes complexity. So finding a performance issue is like finding the proverbial needle in the haystack.
Jul. 29, 2016 06:45 AM EDT Reads: 2,372
Machine Learning helps make complex systems more efficient. By applying advanced Machine Learning techniques such as Cognitive Fingerprinting, wind project operators can utilize these tools to learn from collected data, detect regular patterns, and optimize their own operations. In his session at 18th Cloud Expo, Stuart Gillen, Director of Business Development at SparkCognition, discussed how research has demonstrated the value of Machine Learning in delivering next generation analytics to imp...
Jul. 29, 2016 04:45 AM EDT Reads: 2,572
The 19th International Cloud Expo has announced that its Call for Papers is open. Cloud Expo, to be held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, Big Data, Internet of Things, DevOps, Digital Transformation, Microservices and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportuni...
Jul. 29, 2016 04:15 AM EDT Reads: 2,684
The Internet of Things will challenge the status quo of how IT and development organizations operate. Or will it? Certainly the fog layer of IoT requires special insights about data ontology, security and transactional integrity. But the developmental challenges are the same: People, Process and Platform. In his session at @ThingsExpo, Craig Sproule, CEO of Metavine, demonstrated how to move beyond today's coding paradigm and shared the must-have mindsets for removing complexity from the develo...
Jul. 29, 2016 02:45 AM EDT Reads: 1,618
SYS-CON Events announced today that MangoApps will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. MangoApps provides modern company intranets and team collaboration software, allowing workers to stay connected and productive from anywhere in the world and from any device.
Jul. 29, 2016 02:30 AM EDT Reads: 1,470
Large scale deployments present unique planning challenges, system commissioning hurdles between IT and OT and demand careful system hand-off orchestration. In his session at @ThingsExpo, Jeff Smith, Senior Director and a founding member of Incenergy, will discuss some of the key tactics to ensure delivery success based on his experience of the last two years deploying Industrial IoT systems across four continents.
Jul. 29, 2016 02:00 AM EDT Reads: 1,700
Basho Technologies has announced the latest release of Basho Riak TS, version 1.3. Riak TS is an enterprise-grade NoSQL database optimized for Internet of Things (IoT). The open source version enables developers to download the software for free and use it in production as well as make contributions to the code and develop applications around Riak TS. Enhancements to Riak TS make it quick, easy and cost-effective to spin up an instance to test new ideas and build IoT applications. In addition to...
Jul. 29, 2016 12:15 AM EDT Reads: 2,015
Identity is in everything and customers are looking to their providers to ensure the security of their identities, transactions and data. With the increased reliance on cloud-based services, service providers must build security and trust into their offerings, adding value to customers and improving the user experience. Making identity, security and privacy easy for customers provides a unique advantage over the competition.
Jul. 28, 2016 11:45 PM EDT Reads: 1,282
"We've discovered that after shows 80% if leads that people get, 80% of the conversations end up on the show floor, meaning people forget about it, people forget who they talk to, people forget that there are actual business opportunities to be had here so we try to help out and keep the conversations going," explained Jeff Mesnik, Founder and President of ContentMX, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 28, 2016 10:15 PM EDT Reads: 1,454
"There's a growing demand from users for things to be faster. When you think about all the transactions or interactions users will have with your product and everything that is between those transactions and interactions - what drives us at Catchpoint Systems is the idea to measure that and to analyze it," explained Leo Vasiliou, Director of Web Performance Engineering at Catchpoint Systems, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York Ci...
Jul. 28, 2016 10:00 PM EDT Reads: 2,109
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with the 19th International Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world and ThingsExpo Silicon Valley Call for Papers is now open.
Jul. 28, 2016 09:00 PM EDT Reads: 2,735