|By Lori MacVittie||
|December 7, 2012 07:00 AM EST||
Application architecture has never really been easy, but the introduction of virtualization may make it even less easy – unless you plan ahead
Most applications today maintain at least two if not three or more "tiers" within their architecture. Web (presentation), application server (business logic), and database (data) are the three most common "tiers" to an application, web-based or otherwise, with the presence of middleware (queues and buses) being an optional fourth tier, depending on the application and its integration needs.
It's never been an easy task to ensure that the web servers know where the application servers know where the middleware know where the databases are during a deployment. Most of this information is manually configured as pools of connections defined by IP addresses.
IP addresses that, with the introduction of virtualization and cloud computing , may be dynamic. Certainly not as dynamic as one would expect in a public cloud environment, but dynamic nonetheless. A high frequency of change is really no more disruptive to such an IP-dependent environment than a single change, as it requires specific configuration modifications, additions or, in the case of elasticity, removals.
It is only somewhat ironic that the same technology that introduces the potential for problems is the same technology that offers a simple solution: virtualization. Only this virtualization is not the one-to-many server-style virtualization, but rather the many-to-one network virtualization that has existed since the advent of proxy-based solutions.
VIRTUAL SERVICE ENDPOINTS
If considered before deployment – such as during design and implementation – then the use of virtual service endpoints as implemented through network virtualization techniques can dramatically improve the ability of application architectures to scale up and down and deal with any mobility within the infrastructure that might occur. Rather than directing any given tier to the next directly, all that is necessary is to direct the tier to a virtual service endpoint (an IP-port combination) on the appropriate infrastructure and voila! Instant scalability.
The endpoint on the infrastructure, such as an application delivery controller, can ensure the scalability and availability (as well as security and other operationally necessary functions) by acting on that single "virtual service endpoint". Each tier scales elastically of its own accord, based on demand, without disrupting the connectivity and availability of other tiers.
No other tier need care or even be aware of changes in the IP address assignments of other tiers, because it sees the entire tier as being the "virtual service endpoint" all the time. It stabilizes integration challenges by eliminating the problems associated with changing IP addresses in each tier of the architecture.
It also has the benefit of eliminating service-IP sprawl that is often associated with clustering or other proxy-based solutions that must also scale along with demand and consume more and more (increasingly) valuable IP addresses.
This decoupling is also an excellent form of abstraction that enables versioning and upgrades to occur without disruption, and can be used to simultaneously support multiple versions of the same interface simply by applying some application (page level) routing at the point of ingress (the virtual service endpoint) rather than using redirects or rewrites in the application itself.
The ability to leverage network virtualization to create virtual service endpoints through which application architectures can be simplified and scaled should be seriously considered during the architectural design phase to ensure applications are taking full advantage of its benefits. Once virtual service endpoints are employed, there are a variety of other functions and capabilities that may be able to further simplify or extend application architectures such as two-factor authentication and OTP (one time password) options.
The future is decoupled – from internal application design to application integration to the network. Employing a decoupling-oriented approach to enterprise architecture should be a focus for architects to enable IT to take advantage of the benefits and eliminate potential operational challenges.
@DevOpsSummit at Cloud taking place June 6-8, 2017, at Javits Center, New York City, is co-located with the 20th International Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long developm...
Feb. 24, 2017 12:00 PM EST Reads: 1,398
Bert Loomis was a visionary. This general session will highlight how Bert Loomis and people like him inspire us to build great things with small inventions. In their general session at 19th Cloud Expo, Harold Hannon, Architect at IBM Bluemix, and Michael O'Neill, Strategic Business Development at Nvidia, discussed the accelerating pace of AI development and how IBM Cloud and NVIDIA are partnering to bring AI capabilities to "every day," on-demand. They also reviewed two "free infrastructure" pr...
Feb. 24, 2017 11:30 AM EST Reads: 1,154
Cloud Expo, Inc. has announced today that Aruna Ravichandran, vice president of DevOps Product and Solutions Marketing at CA Technologies, has been named co-conference chair of DevOps at Cloud Expo 2017. The @DevOpsSummit at Cloud Expo New York will take place on June 6-8, 2017, at the Javits Center in New York City, New York, and @DevOpsSummit at Cloud Expo Silicon Valley will take place Oct. 31-Nov. 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
Feb. 24, 2017 11:30 AM EST Reads: 1,662
Buzzword alert: Microservices and IoT at a DevOps conference? What could possibly go wrong? In this Power Panel at DevOps Summit, moderated by Jason Bloomberg, the leading expert on architecting agility for the enterprise and president of Intellyx, panelists peeled away the buzz and discuss the important architectural principles behind implementing IoT solutions for the enterprise. As remote IoT devices and sensors become increasingly intelligent, they become part of our distributed cloud enviro...
Feb. 24, 2017 11:00 AM EST Reads: 6,132
In recent years, containers have taken the world by storm. Companies of all sizes and industries have realized the massive benefits of containers, such as unprecedented mobility, higher hardware utilization, and increased flexibility and agility; however, many containers today are non-persistent. Containers without persistence miss out on many benefits, and in many cases simply pass the responsibility of persistence onto other infrastructure, adding additional complexity.
Feb. 24, 2017 10:45 AM EST Reads: 636
Almost two-thirds of companies either have or soon will have IoT as the backbone of their business. Though, IoT is far more complex than most firms expected with a majority of IoT projects having failed. How can you not get trapped in the pitfalls? In his session at @ThingsExpo, Tony Shan, Chief IoTologist at Wipro, will introduce a holistic method of IoTification, which is the process of IoTifying the existing technology portfolios and business models to adopt and leverage IoT. He will delve in...
Feb. 24, 2017 10:30 AM EST Reads: 2,115
In his session at 20th Cloud Expo, Chris Carter, CEO of Approyo, will discuss the basic set up and solution for an SAP solution in the cloud and what it means to the viability of your company. Chris Carter is CEO of Approyo. He works with business around the globe, to assist them in their journey to the usage of Big Data in the forms of Hadoop (Cloudera and Hortonwork's) and SAP HANA. At Approyo, we support firms who are looking for knowledge to grow through current business process, where even...
Feb. 24, 2017 10:25 AM EST Reads: 239
Stratoscale, the software company developing the next generation data center operating system, exhibited at SYS-CON's 18th International Cloud Expo®, which took place at the Javits Center in New York City, NY, in June 2016.Stratoscale is revolutionizing the data center with a zero-to-cloud-in-minutes solution. With Stratoscale’s hardware-agnostic, Software Defined Data Center (SDDC) solution to store everything, run anything and scale everywhere, IT is empowered to take control of their data ce...
Feb. 24, 2017 09:45 AM EST Reads: 1,077
Tricky charts and visually deceptive graphs often make a case for the impact IT performance has on business. The debate isn't around the obvious; of course, IT performance metrics like website load time influence business metrics such as conversions and revenue. Rather, this presentation will explore various data analysis concepts to understand how, and how not to, assert such correlations. In his session at 20th Cloud Expo, Leo Vasiliou, Director of Web Performance Engineering at Catchpoint Sys...
Feb. 24, 2017 09:30 AM EST Reads: 1,612
Some people worry that OpenStack is more flash then substance; however, for many customers this could not be farther from the truth. No other technology equalizes the playing field between vendors while giving your internal teams better access than ever to infrastructure when they need it. In his session at 20th Cloud Expo, Chris Brown, a Solutions Marketing Manager at Nutanix, will talk through some real-world OpenStack deployments and look into the ways this can benefit customers of all sizes....
Feb. 24, 2017 09:30 AM EST Reads: 885
@DevOpsSummit has been named the ‘Top DevOps Influencer' by iTrend. iTrend processes millions of conversations, tweets, interactions, news articles, press releases, blog posts - and extract meaning form them and analyzes mobile and desktop software platforms used to communicate, various metadata (such as geo location), and automation tools. In overall placement, @DevOpsSummit ranked as the number one ‘DevOps Influencer' followed by @CloudExpo at third, and @MicroservicesE at 24th.
Feb. 24, 2017 09:15 AM EST Reads: 8,154
DevOps is often described as a combination of technology and culture. Without both, DevOps isn't complete. However, applying the culture to outdated technology is a recipe for disaster; as response times grow and connections between teams are delayed by technology, the culture will die. A Nutanix Enterprise Cloud has many benefits that provide the needed base for a true DevOps paradigm. In his general session at 20th Cloud Expo, Chris Brown, a Solutions Marketing Manager at Nutanix, will explore...
Feb. 24, 2017 09:15 AM EST Reads: 899
It is one thing to build single industrial IoT applications, but what will it take to build the Smart Cities and truly society changing applications of the future? The technology won’t be the problem, it will be the number of parties that need to work together and be aligned in their motivation to succeed. In his Day 2 Keynote at @ThingsExpo, Henrik Kenani Dahlgren, Portfolio Marketing Manager at Ericsson, discussed how to plan to cooperate, partner, and form lasting all-star teams to change the...
Feb. 24, 2017 08:45 AM EST Reads: 4,874
SYS-CON Events announced today that Outlyer, a monitoring service for DevOps and operations teams, has been named “Bronze Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Outlyer is a monitoring service for DevOps and Operations teams running Cloud, SaaS, Microservices and IoT deployments. Designed for today's dynamic environments that need beyond cloud-scale monitoring, we make monitoring effortless so you...
Feb. 24, 2017 08:45 AM EST Reads: 1,797
The buzz continues for cloud, data analytics and the Internet of Things (IoT) and their collective impact across all industries. But a new conversation is emerging - how do companies use industry disruption and technology enablers to lead in markets undergoing change, uncertainty and ambiguity? Organizations of all sizes need to evolve and transform, often under massive pressure, as industry lines blur and merge and traditional business models are assaulted and turned upside down. In this new da...
Feb. 24, 2017 08:45 AM EST Reads: 1,149
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.
Feb. 24, 2017 08:45 AM EST Reads: 1,814
Wooed by the promise of faster innovation, lower TCO, and greater agility, businesses of every shape and size have embraced the cloud at every layer of the IT stack – from apps to file sharing to infrastructure. The typical organization currently uses more than a dozen sanctioned cloud apps and will shift more than half of all workloads to the cloud by 2018. Such cloud investments have delivered measurable benefits. But they’ve also resulted in some unintended side-effects: complexity and risk. ...
Feb. 24, 2017 08:30 AM EST Reads: 1,684
SYS-CON Events announced today that Conference Guru has been named “Media Sponsor” of SYS-CON's 20th International Cloud Expo, which will take place on June 6–8, 2017, at the Javits Center in New York City, NY. A valuable conference experience generates new contacts, sales leads, potential strategic partners and potential investors; helps gather competitive intelligence and even provides inspiration for new products and services. Conference Guru works with conference organizers to pass great dea...
Feb. 24, 2017 08:15 AM EST Reads: 2,020
There are 66 million network cameras capturing terabytes of data. How did factories in Japan improve physical security at the facilities and improve employee productivity? Edge Computing reduces possible kilobytes of data collected per second to only a few kilobytes of data transmitted to the public cloud every day. Data is aggregated and analyzed close to sensors so only intelligent results need to be transmitted to the cloud. Non-essential data is recycled to optimize storage.
Feb. 24, 2017 08:15 AM EST Reads: 1,427
Whether they’re located in a public, private, or hybrid cloud environment, cloud technologies are constantly evolving. While the innovation is exciting, the end mission of delivering business value and rapidly producing incremental product features is paramount. In his session at @DevOpsSummit at 19th Cloud Expo, Kiran Chitturi, CTO Architect at Sungard AS, discussed DevOps culture, its evolution of frameworks and technologies, and how it is achieving maturity. He also covered various styles and...
Feb. 24, 2017 08:00 AM EST Reads: 3,429