|By Gregory Speckhart||
|March 10, 2014 03:30 PM EDT||
In a previous post, we discussed why GoDaddy could sustain the peak load after its Super Bowl Ad campaign aired and why others like Kia wasted a lot of marketing money because its site availability dropped under the load. In this post, we will look at the technical details behind the impact of oversized pages, and how that may have been averted by kia.com.
Lesson #1: Bloated Pages Will Kill Your Web Servers
Previously, I noted availability issues occurred for Kia during game time. The Kia team broke an important performance rule - large number of bytes transferred.
First, let's look at the anatomy of an American football fumble- play in motion, ball fumbled, pile-up ensues until possession is determined, then play is recovered or turned over.
Now, let's look at the anatomy of a heavy web page otherwise delivered successfully under normal load. First, heavy traffic volume begins. A connection pile-up ensues by putting massive campaign-based load on front-end. Front-end tipping point reached when established connections cannot complete bytes in motion faster than new connections are requested. Eventually, timeouts occur for new connections after 60 second inactivity, and the web site is barely in motion.
1. Heavy Traffic volume begins, 2. Connection pile-up, 3. Timeouts occur, and 4. eventually availability drops.
Kia's page was just over 20.1MB, and ranked 51 out of the 53 advertisers for heaviest byte count. Its tools should have made this fact obvious, unless it was deliberate. Either way, soon after its third quarter ad played, kia.com failed miserably
The following screenshot shows the drop in transferred bytes during game time when hitting the home page. At the same time we observed internal server errors and the socket timeouts which explain the actual problem. Web Servers couldn't handle the incoming load because they were busy delivering the very heavy weight content. Note: In my previous blog I identified the symptoms of socket timeouts, however, further investigation for this blog revealed a more prevalent symptom of internal server errors (HTTP Error code 500):
Transferred Bytes show Availability fell during the game
Socket Timeout Error:
Internal Server Error 500 - yes, this is a generic error message, but given what we know about kia.com's site performance the unexpected condition was encountered was likely due to excessive load and the servers inability to service that traffic:
Lesson #2: What Caused the Bloat?
To read on, about what caused the bloat - click here for the full article.
Takeaways for Developers
Takeaways for Performance Engineers
- Load Test 1.5x - 3x of your expected load. Make sure to test from different regions and browsers.
Takeaways for Business / Marketing
- Make sure the advertising dollars spent matches the money it will take to be sure that IT and Dev get it right.
In a future article, I will help answer these questions: is deploying SSL on a homepage a security requirement, a marketing tactic, or simply a misunderstood technology? And, is the importance to not only include your CDN Partner in your testing and monitoring Strategy, but extend this to also analyze which CDN partner is the right one for you. Click here to read more now.
In his session at 18th Cloud Expo, Andrew Cole, Director of Solutions Engineering at Peak 10, will discuss how the newest technology advances are reducing the cost and complexity of traditional business continuity and disaster recovery solutions. Attendees will: Learn why having a full disaster recovery strategy is more important now than ever before Explore the key drivers of a successful disaster recovery solution Achieve measurable operational and business value from a disaster recovery ...
May. 29, 2016 11:30 AM EDT Reads: 1,432
The cloud era has reached the stage where it is no longer a question of whether a company should migrate, but when. Enterprises have embraced the outsourcing of where their various applications are stored and who manages them, saving significant investment along the way. Plus, the cloud has become a defining competitive edge. Companies that fail to successfully adapt risk failure. The media, of course, continues to extol the virtues of the cloud, including how easy it is to get there. Migrating...
May. 29, 2016 11:15 AM EDT Reads: 577
As organizations shift towards IT-as-a-service models, the need for managing and protecting data residing across physical, virtual, and now cloud environments grows with it. Commvault can ensure protection, access and E-Discovery of your data – whether in a private cloud, a Service Provider delivered public cloud, or a hybrid cloud environment – across the heterogeneous enterprise. In his general session at 18th Cloud Expo, Randy De Meno, Chief Technologist - Windows Products and Microsoft Part...
May. 29, 2016 11:00 AM EDT Reads: 666
SYS-CON Events announced today that Hanu Software will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. Leveraging best-in-class people, processes, and technologies, Hanu provides high-quality, high-value software development and business process outsourcing services to independent software vendors (ISVs) and enterprises.
May. 29, 2016 11:00 AM EDT Reads: 1,425
SYS-CON Events announced today that ContentMX, the marketing technology and services company with a singular mission to increase engagement and drive more conversations for enterprise, channel and SMB technology marketers, has been named “Sponsor & Exhibitor Lounge Sponsor” of SYS-CON's 18th Cloud Expo, which will take place on June 7-9, 2016, at the Javits Center in New York City, New York. “CloudExpo is a great opportunity to start a conversation with new prospects, but what happens after the...
May. 29, 2016 10:30 AM EDT Reads: 1,286
What a difference a year makes. Organizations aren’t just talking about IoT possibilities, it is now baked into their core business strategy. With IoT, billions of devices generating data from different companies on different networks around the globe need to interact. From efficiency to better customer insights to completely new business models, IoT will turn traditional business models upside down. In the new customer-centric age, the key to success is delivering critical services and apps wit...
May. 29, 2016 10:30 AM EDT Reads: 1,256
Join us at Cloud Expo | @ThingsExpo 2016 – June 7-9 at the Javits Center in New York City and November 1-3 at the Santa Clara Convention Center in Santa Clara, CA – and deliver your unique message in a way that is striking and unforgettable by taking advantage of SYS-CON's unmatched high-impact, result-driven event / media packages.
May. 29, 2016 10:00 AM EDT Reads: 2,489
In his keynote at 18th Cloud Expo, Andrew Keys, Co-Founder of ConsenSys Enterprise, will provide an overview of the evolution of the Internet and the Database and the future of their combination – the Blockchain. Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life ...
May. 29, 2016 09:45 AM EDT Reads: 2,018
SYS-CON Events announced today that BMC Software has been named "Siver Sponsor" of SYS-CON's 18th Cloud Expo, which will take place on June 7-9, 2015 at the Javits Center in New York, New York. BMC is a global leader in innovative software solutions that help businesses transform into digital enterprises for the ultimate competitive advantage. BMC Digital Enterprise Management is a set of innovative IT solutions designed to make digital business fast, seamless, and optimized from mainframe to mo...
May. 29, 2016 09:30 AM EDT Reads: 2,298
SYS-CON Events announced today that Super Micro Computer, Inc., a global leader in Embedded and IoT solutions, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. Supermicro (NASDAQ: SMCI), the leading innovator in high-performance, high-efficiency server technology, is a premier provider of advanced server Building Block Solutions® for Data Center, Cloud Computing, Enterprise IT, Hadoop/Big Data, HPC and ...
May. 29, 2016 09:15 AM EDT Reads: 714
SYS-CON Events announced today that MobiDev will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. MobiDev is a software company that develops and delivers turn-key mobile apps, websites, web services, and complex software systems for startups and enterprises. Since 2009 it has grown from a small group of passionate engineers and business managers to a full-scale mobile software company with over 200 develope...
May. 29, 2016 08:15 AM EDT Reads: 2,734
In the rush to compete in the digital age, a successful digital transformation is essential, but many organizations are setting themselves up for failure. There’s a common misconception that the process is just about technology, but it’s not. It’s about your business. It shouldn’t be treated as an isolated IT project; it should be driven by business needs with the committed involvement of a range of stakeholders.
May. 29, 2016 08:15 AM EDT Reads: 2,652
SoftLayer operates a global cloud infrastructure platform built for Internet scale. With a global footprint of data centers and network points of presence, SoftLayer provides infrastructure as a service to leading-edge customers ranging from Web startups to global enterprises. SoftLayer's modular architecture, full-featured API, and sophisticated automation provide unparalleled performance and control. Its flexible unified platform seamlessly spans physical and virtual devices linked via a world...
May. 29, 2016 07:00 AM EDT Reads: 2,292
SYS-CON Events announced today that Alert Logic, Inc., the leading provider of Security-as-a-Service solutions for the cloud, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. Alert Logic, Inc., provides Security-as-a-Service for on-premises, cloud, and hybrid infrastructures, delivering deep security insight and continuous protection for customers at a lower cost than traditional security solutions. Ful...
May. 29, 2016 06:45 AM EDT Reads: 2,943
How will your company move to the cloud while ensuring a solid security posture? Organizations from small to large are increasingly adopting cloud solutions to deliver essential business services at a much lower cost. According to cyber security experts, the frequency and severity of cyber-attacks are on the rise, causing alarm to businesses and customers across a variety of industries. To defend against exploits like these, a company must adopt a comprehensive security defense strategy that is ...
May. 29, 2016 06:30 AM EDT Reads: 637