|By Lori MacVittie||
|October 7, 2014 04:00 PM EDT||
JANUARY 8, 2014 02:00 PM EST
When we talk about the impact of BYOD and BYOA and the Internet of Things, we often focus on the impact on data center architectures. That's because there will be an increasing need for authentication, for access control, for security, for application delivery as the number of potential endpoints (clients, devices, things) increases. That means scale in the data center.
What we gloss over, what we skip, is that before any of these "things" ever makes a request to access an application it had to execute a DNS query. Every. Single. Thing.
Maybe that's because we assume DNS can handle the load. So far it's done well. You rarely, if ever, hear of disruptions or outages due directly to the execution of DNS. Oh, there has been some issues with misconfiguration of DNS and of exploitation of DNS (hijacking, illicit use in reflection attacks, etc...) but in general there's rarely a report that a DNS service was overwhelmed by traffic and fell over.
"Success breeds complacency. Complacency breeds failure. Only the paranoid survive." - Andrew Grove.
In the face of rapidly expanding endpoints (things), it behooves us all to take a second look at DNS and ensure it's ready to meet the challenge.
This is not just about availability. Remember operational axiom #2 - as load increases, performance decreases. That's true for DNS, too. It doesn't get a pass. That's why it's called an axiom, after all, because it's kind of the law, like gravity.
Browsers do a good job of obfuscating the latency incurred by DNS, and native mobile applications never show such gory details, so it's difficult for a user to separate latency associated with an overloaded DNS service from a generally poorly performing application. Not that they care, actually. A slow app is a slow app to an end user. They aren't interested in the gory details, they're interested in speedy applications. Period.
Interestingly, though, the Internet of Things is made up of more than just users. Lots of devices and applications make up the myriad endpoint "overlay" network created by connections between these devices and "things".
Devices don't care about latency (unless of course they're being driven by users, then the users care, but the devices surely don't). But the thing about DNS is that the latency is generally incurred at initial connection time. There's no way to differentiate before a connection is made whether it's a device or a real, live person on the other end. Even after a connection is made, UDP isn't exactly the most verbose of protocols and it's nearly impossible to differentiate via UDP, too. You've only got a few headers, and none of them offer insight into what kind of endpoint is making the request.
The imperative, then, is to ensure really fast connections and responses to every single query.
That may mean you need to reevaluate your DNS infrastructure to ensure it's ready to handle the coming flood of "things". Test and verify the maximum queries per second (QPS) your systems can manage while maintaining what your business defines as acceptable latency. Make sure to plot out latency based on connections and queries per second to get an idea of at what point your DNS starts to become part of the performance problem.
As the Internet expands and more devices and users are accessing your applications, it would be a mistake to forget about DNS. We all know the old saying about "assuming" things - and that certainly holds true when you simply assume your DNS is able to handle the increasing load.
Be paranoid. Test often. CYA(pps).
As AT&Ts VP of Domain 2.0 architecture writes one aspect of their Domain 2.0 strategy is a goal to embrace a Microservices Application Architecture. One page 9 they describe how these envisage them fitting into the ECOMP architecture: "The initial steps of the recipes include a homing and placement task using constraints specified in the requests. ‘Homing and Placement' are micro-services involving orchestration, inventory, and controllers responsible for infrastructure, network, and applicati...
May. 30, 2016 04:15 AM EDT Reads: 1,890
Many banks and financial institutions are experimenting with containers in development environments, but when will they move into production? Containers are seen as the key to achieving the ultimate in information technology flexibility and agility. Containers work on both public and private clouds, and make it easy to build and deploy applications. The challenge for regulated industries is the cost and complexity of container security compliance. VM security compliance is already challenging, ...
May. 30, 2016 03:45 AM EDT Reads: 1,377
A strange thing is happening along the way to the Internet of Things, namely far too many devices to work with and manage. It has become clear that we'll need much higher efficiency user experiences that can allow us to more easily and scalably work with the thousands of devices that will soon be in each of our lives. Enter the conversational interface revolution, combining bots we can literally talk with, gesture to, and even direct with our thoughts, with embedded artificial intelligence, wh...
May. 30, 2016 03:00 AM EDT Reads: 2,080
SYS-CON Events announced today that Tintri Inc., a leading producer of VM-aware storage (VAS) for virtualization and cloud environments, will exhibit at the 18th International CloudExpo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, New York, and the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA.
May. 30, 2016 02:45 AM EDT Reads: 2,518
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. 30, 2016 02:15 AM EDT Reads: 2,988
You might already know them from theagileadmin.com, but let me introduce you to two of the leading minds in the Rugged DevOps movement: James Wickett and Ernest Mueller. Both James and Ernest are active leaders in the DevOps space, in addition to helping organize events such as DevOpsDays Austinand LASCON. Our conversation covered a lot of bases from the founding of Rugged DevOps to aligning organizational silos to lessons learned from W. Edwards Demings.
May. 30, 2016 01:30 AM EDT Reads: 1,544
Agile teams report the lowest rate of measuring non-functional requirements. What does this mean for the evolution of quality in this era of Continuous Everything? To explore how the rise of SDLC acceleration trends such as Agile, DevOps, and Continuous Delivery are impacting software quality, Parasoft conducted a survey about measuring and monitoring non-functional requirements (NFRs). Here's a glimpse at what we discovered and what it means for the evolution of quality in this era of Continuo...
May. 30, 2016 12:15 AM EDT Reads: 1,674
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. 30, 2016 12:00 AM EDT Reads: 2,695
Just last week a senior Hybris consultant shared the story of a customer engagement on which he was working. This customer had problems, serious problems. We’re talking about response times far beyond the most liberal acceptable standard. They were unable to solve the issue in their eCommerce platform – specifically Hybris. Although the eCommerce project was delivered by a system integrator / implementation partner, the vendor still gets involved when things go really wrong. After all, the vendo...
May. 29, 2016 10:45 PM EDT Reads: 1,528
SYS-CON Events announced today that EastBanc Technologies 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. EastBanc Technologies has been working at the frontier of technology since 1999. Today, the firm provides full-lifecycle software development delivering flexible technology solutions that seamlessly integrate with existing systems – whether on premise or cloud. EastBanc Technologies partners with p...
May. 29, 2016 10:00 PM EDT Reads: 2,409
While there has been much ado about interoperability, there are still no real solutions, same as last year and the year before that. The large EHR vendors who continue to dominate the market still maintain that interoperability is all but solved, still can't connect EHRs across the continuum causing frustration by providers and a disservice to patients. The ONC pays lip service to the problem, but that is about it. It is time for the healthcare industry to consider alternatives like middleware w...
May. 29, 2016 08:30 PM EDT Reads: 1,763
SYS-CON Events announced today that AppNeta, the leader in performance insight for business-critical web applications, will exhibit and present at SYS-CON's @DevOpsSummit at Cloud Expo New York, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. AppNeta is the only application performance monitoring (APM) company to provide solutions for all applications – applications you develop internally, business-critical SaaS applications you use and the networks that deli...
May. 29, 2016 08:00 PM EDT Reads: 2,631
SYS-CON Events announced today the Docker Meets Kubernetes – Intro into the Kubernetes World, being held June 9, 2016, in conjunction with 18th Cloud Expo | @ThingsExpo, at the Javits Center in New York, NY. Register for 'Docker Meets Kubernetes Workshop' Here! This workshop led by Sebastian Scheele, co-founder of Loodse, introduces participants to Kubernetes (container orchestration). Through a combination of instructor-led presentations, demonstrations, and hands-on labs, participants learn ...
May. 29, 2016 02:00 PM EDT Reads: 2,049
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: 2,560
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: 2,327
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: 2,326
When I talk about driving innovation with self-organizing teams, I emphasize that such self-organization includes expecting the participants to organize their own teams, give themselves their own goals, and determine for themselves how to measure their success. In contrast, the definition of skunkworks points out that members of such teams are “usually specially selected.” Good thing he added the word usually – because specially selecting such teams throws a wrench in the entire works, limiting...
May. 29, 2016 06:30 AM EDT Reads: 1,630
Automation is a critical component of DevOps and Continuous Delivery. This morning on #c9d9 we discussed CD Automation and how you can apply Automation to accelerate release cycles, improve quality, safety and governance? What is the difference between Automation and Orchestration? Where should you begin your journey to introduce both?
May. 29, 2016 06:15 AM EDT Reads: 1,455
SYS-CON Events announced today TechTarget has been named “Media Sponsor” of 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, and the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. TechTarget is the Web’s leading destination for serious technology buyers researching and making enterprise technology decisions. Its extensive global networ...
May. 29, 2016 05:15 AM EDT Reads: 3,285
SYS-CON Events announced today that Commvault, a global leader in enterprise data protection and information management, has been named “Bronze Sponsor” of 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, and the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Commvault is a leading provider of data protection and information management...
May. 29, 2016 04:30 AM EDT Reads: 3,277