|By Kyle Gabhart||
|January 21, 2014 11:20 AM EST||
If you haven’t yet noticed that prioritization of non-functional requirements (NFRs) is changing amongst your user base, you will soon. For decades, we have held to the same familiar set of NFRs. Every team had its own definition and particular spin on NFRs, but the usual suspects are accessibility, availability, extensibility, interoperability, maintainability, performance, reliability, scalability, security, and usability.
But new priorities have surfaced, as IT has experienced a sea change over the past few years. Some organizations have even adopted completely new NFRs. The rise of DevOps has coincided with these changes, and the movement’s principles enable IT teams to more readily adapt to rapidly changing requirements.
Your grandfather’s mainframe was very reliable
Historically, IT system designs were praised for reliability. Robust and stable systems could “take a licking and keep on ticking.” As computing became more pervasive, scalability became the watchword. Systems should be able to grow and expand to meet increasing demands.
Scalability as an NFR priority represents just a slight shift from reliability as an NFR. Both operated off the mindset that the original system design was valid. Reliability ensures that the system continues to provide the stated functionality over time, and scalability ensures that you can do so for an increasing demand set.
Roughly 10 years ago, things began to shift as more and more organizations embraced movements like agile or XP, and architectural models like Service Oriented Architecture (SOA). These initiatives promoted adaptation and response to change as desirable system qualities. Next, cloud computing introduced us to the notion of elasticity, further promoting the values of flexibility and responsiveness to change.
A resilient system is a happy system
The state of the art for system design is always evolving, and we see noticeable leaps forward every few years. The current phase of evolution is toward resilient systems.
Legacy system designs relied upon expensive infrastructure with multiple-redundant-hot-swappable-live-backup-standby-continuity-generators (or whatever vendors are peddling lately). In contrast, resilient system designs embrace failure and promote the use of cheap, commodity hardware, coupled with distributed data management, parallel processing, eventual consistency, and self-healing operational nodes.
Some portion of your system is likely to go down at some point, and resilient systems are designed with that expectation. Resilient systems and resilient processes are able to continue operation (albeit at diminished capacity) in the face of failure.
The prioritization of resilience over reliability as an NFR can be seen within the DevOps movement, the development of the Netflix Simian Army, and the rise of NoSQL data management solutions.
DevOps and resiliency
DevOps is a multi-headed beast, more a movement guided by a set of principles than a tangible and well-defined construct. While organizations are free to adopt aspects of DevOps that suit their needs, one common thread is that of resilience. Failure is seen as an opportunity to improve processes and communication, rather than as a threat.
The principles of continuous integration and continuous delivery that are core to most DevOps practices exemplify a resilient mindset. Where the classic waterfall model relies upon detailed front-end design and planning with an all-or-nothing development phase and late-stage testing, DevOps teams are more agile, embracing a “fail early, fail often” model. This approach results in more resilient and adaptable applications.
Netflix Simian Army
Netflix gained world renown when the company broadcast details of its Simian Army work in 2010 and 2011. Through the automated efforts of Chaos Monkey, Chaos Gorilla, and a slew of other similar utilities, failure is simulated in order to develop more resilient processes, tools, and capabilities.
John Ciancutti of Netflix writes, “If we aren’t constantly testing our ability to succeed despite failure, then it isn’t likely to work when it matters most — in the event of an unexpected outage.”
A third illustration of the growing fascination with resilient, self-healing systems is the transformation now going on in the data realm. Data and metadata management have evolved considerably from the relational databases of yore. Modern data management strategies tend to be distributed, fault-tolerant, and in some cases even self-heal by spawning new nodes as needed. Examples include Google FS / Bigtable, in-memory datastores like Hazelcast or SAP’s HANA, and distributed data management solutions like Apache Cassandra.
Miko Matsumura of Hazelcast notes, “Virtualization and scale-out power new ways of thinking about system stability, including a shift away from ‘reliability,’ where giant expensive systems never fail (until they do, catastrophically), and towards ‘resiliency,’ where thousands of inexpensive systems constantly fail—but in ways that don’t materially impact running applications.”
Keeping pace with the cool kids
It’s often said that the only constant is change. The DevOps movement positions organizations to embrace change, rather than fear it. Continuous integration, continuous delivery, and continuous feedback loops between dev teams and ops teams facilitate an enhanced degree of agility and responsiveness.
As business and society evolve, our system design priorities must adapt in parallel. The cool kids will change the game again at some point, but for right now, “change” means designing systems and supporting processes that are responsive and adaptable by prioritizing resilience over reliability.
Why Docker Is Not Enough By @Bart_Copeland | @DevOpsSummit @ActiveState #DevOps #Docker #Containers #Microservices
I want to start by saying that, at ActiveState, we absolutely love Docker. We think it's phenomenal technology that is really becoming the global currency of the cloud. We've written about Docker a lot on the ActiveState blog – we've celebrated its birthday, discussed evolving technologies surrounding it, and shown how we've integrated Docker into Stackato. But, I wanted to share with you why we feel Docker alone is not enough for the enterprise. First, I'm going to discuss two underlying prob...
Jul. 6, 2015 05:45 PM EDT Reads: 781
SYS-CON Media announced today that CloudBees, the Jenkins Enterprise company, has launched ad campaigns on SYS-CON's DevOps Journal. CloudBees' campaigns focus on the business value of Continuous Delivery and how it has been recognized as a game changer for IT and is now a top priority for organizations, and the best ways to optimize Jenkins to ensure your continuous integration environment is optimally configured.
Jul. 6, 2015 05:30 PM EDT Reads: 937
I recently attended and presented at the east coast version of the Jenkins User Conference held this year in Washington, DC. The weather certainly fit the theme of the conference: The heat was continuous. The humidity was fully integrated with the heat. And, most importantly as you can see above, SWAG was out in full force. Right from the opening keynote by the founder of Jenkins, Kohsuke Kawaguchi, this conference was jam-packed with all the latest capabilities of Jenkins, including discussi...
Jul. 6, 2015 05:15 PM EDT Reads: 2,115
The last decade was about virtual machines, but the next one is about containers. Containers enable a service to run on any host at any time. Traditional tools are starting to show cracks because they were not designed for this level of application portability. Now is the time to look at new ways to deploy and manage applications at scale. In his session at 16th Cloud Expo, Jake Moshenko, Product Manager at CoreOS, examined how CoreOS + Quay.io fit into the development lifecycle from pushing gi...
Jul. 6, 2015 05:15 PM EDT Reads: 2,743
One of the charter responsibilities of DevOps (because it's a charter responsibility of ops) is measuring and monitoring applications once they're in production. That means both performance and availability. Which means a lot more than folks might initially think because generally speaking what you measure and monitor is a bit different depending on whether you're looking at performance or availability*.
Jul. 6, 2015 05:00 PM EDT Reads: 976
Announcing @ProfitBricksUSA to Exhibit at @CloudExpo Silicon Valley | #IoT #API #DevOps #Microservices
SYS-CON Events announced today that ProfitBricks, the provider of painless cloud infrastructure, will exhibit at SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. ProfitBricks is the IaaS provider that offers a painless cloud experience for all IT users, with no learning curve. ProfitBricks boasts flexible cloud servers and networking, an integrated Data Center Designer tool for visual control over the...
Jul. 6, 2015 05:00 PM EDT Reads: 2,122
The 4th International Internet of @ThingsExpo, co-located with the 17th International Cloud Expo - to be held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA - announces that its Call for Papers is open. The Internet of Things (IoT) is the biggest idea since the creation of the Worldwide Web more than
Jul. 6, 2015 05:00 PM EDT Reads: 1,872
The most often asked question post-DevOps introduction is: “How do I get started?” There’s plenty of information on why DevOps is valid and important, but many managers still struggle with simple basics for how to initiate a DevOps program in their business. They struggle with issues related to current organizational inertia, the lack of experience on Continuous Integration/Delivery, understanding where DevOps will affect revenue and budget, etc. In their session at DevOps Summit, JP Morgenthal...
Jul. 6, 2015 04:15 PM EDT Reads: 1,520
"Plutora provides release and testing environment capabilities to the enterprise," explained Dalibor Siroky, Director and Co-founder of Plutora, in this SYS-CON.tv interview at @DevOpsSummit, held June 9-11, 2015, at the Javits Center in New York City.
Jul. 6, 2015 03:00 PM EDT Reads: 1,772
In his session at 16th Cloud Expo, Simone Brunozzi, VP and Chief Technologist of Cloud Services at VMware, reviewed the changes that the cloud computing industry has gone through over the last five years and shared insights into what the next five will bring. He also chronicled the challenges enterprise companies are facing as they move to the public cloud. He delved into the "Hybrid Cloud" space and explained why every CIO should consider ‘hybrid cloud' as part of their future strategy to achie...
Jul. 6, 2015 03:00 PM EDT Reads: 1,769
DevOps tends to focus on the relationship between Dev and Ops, putting an emphasis on the ops and application infrastructure. But that’s changing with microservices architectures. In her session at DevOps Summit, Lori MacVittie, Evangelist for F5 Networks, will focus on how microservices are changing the underlying architectures needed to scale, secure and deliver applications based on highly distributed (micro) services and why that means an expansion into “the network” for DevOps.
Jul. 6, 2015 03:00 PM EDT Reads: 3,020
SYS-CON Events announced today that WHOA.com, an ISO 27001 Certified secure cloud computing company, participated as “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo® New York, which took place June 9-11, 2015, at the Javits Center in New York City, NY. WHOA.com is a leader in next-generation, ISO 27001 Certified secure cloud solutions. WHOA.com offers a comprehensive portfolio of best-in-class cloud services for business including Infrastructure as a Service (IaaS), Secure Cloud Desk...
Jul. 6, 2015 02:45 PM EDT Reads: 929
One of the hottest new terms in the world of enterprise computing is the microservice. Starting with the seminal 2014 article by James Lewis and Martin Fowler of ThoughtWorks, microservices have taken on a life of their own – and as with any other overhyped term, they have generated their fair share of confusion as well. Perhaps the best definition of microservices comes from Janakiram MSV, Principal at Janakiram & Associates. “Microservices are fine-grained units of execution. They are designe...
Jul. 6, 2015 02:15 PM EDT Reads: 986
ISS to Exhibit at @CloudExpo Silicon Valley | #Cloud #IoT #M2M #API #Microservices #InternetOfThings
SYS-CON Events announced today that Intelligent Systems Services will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Established in 1994, Intelligent Systems Services Inc. is located near Washington, DC, with representatives and partners nationwide. ISS’s well-established track record is based on the continuous pursuit of excellence in designing, implementing and supporting nationwide clients’ ...
Jul. 6, 2015 02:15 PM EDT Reads: 1,044
With major technology companies and startups seriously embracing IoT strategies, now is the perfect time to attend @ThingsExpo in Silicon Valley. Learn what is going on, contribute to the discussions, and ensure that your enterprise is as "IoT-Ready" as it can be! Internet of @ThingsExpo, taking place Nov 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 17th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading in...
Jul. 6, 2015 02:00 PM EDT Reads: 1,316
IT data is typically silo'd by the various tools in place. Unifying all the log, metric and event data in one analytics platform stops finger pointing and provides the end-to-end correlation. Logs, metrics and custom event data can be joined to tell the holistic story of your software and operations. For example, users can correlate code deploys to system performance to application error codes. In his session at DevOps Summit, Michael Demmer, VP of Engineering at Jut, will discuss how this can...
Jul. 6, 2015 02:00 PM EDT Reads: 1,429
Kintone Named "Bronze Sponsor" in Silicon Valley | @CloudExpo @Kintone_Global #IoT #M2M #API #Microservices #InternetOfThings
SYS-CON Events announced today that kintone has been named “Bronze Sponsor” of SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. kintone promotes cloud-based workgroup productivity, transparency and profitability with a seamless collaboration space, build your own business application (BYOA) platform, and workflow automation system.
Jul. 6, 2015 01:45 PM EDT Reads: 2,134
Live Webinar with 451 Research Analyst Peter Christy. Join us on Wednesday July 22, 2015, at 10 am PT / 1 pm ET In a world where users are on the Internet and the applications are in the cloud, how do you maintain your historic SLA with your users? Peter Christy, Research Director, Networks at 451 Research, will discuss this new network paradigm, one in which there is no LAN and no WAN, and discuss what users and network administrators gain and give up when migrating to the agile world of clo...
Jul. 6, 2015 01:30 PM EDT Reads: 1,519
The cloud has transformed how we think about software quality. Instead of preventing failures, we must focus on automatic recovery from failure. In other words, resilience trumps traditional quality measures. Continuous delivery models further squeeze traditional notions of quality. Remember the venerable project management Iron Triangle? Among time, scope, and cost, you can only fix two or quality will suffer. Only in today's DevOps world, continuous testing, integration, and deployment upend...
Jul. 6, 2015 01:30 PM EDT Reads: 2,652
SYS-CON Events announced today that Harbinger Systems will exhibit at SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Harbinger Systems is a global company providing software technology services. Since 1990, Harbinger has developed a strong customer base worldwide. Its customers include software product companies ranging from hi-tech start-ups in Silicon Valley to leading product companies in the US a...
Jul. 6, 2015 01:30 PM EDT Reads: 2,319