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From the Blogosphere

While working on the second edition for my Java 24-hour Trainer book I’m re-writing some of the code samples to use lambda expressions. Today I was re-writing an example for wait/notify for the chapter on multi-threading. Beside illustrating the wait/notify, I used a closure in this ex...
If you've had to test one of today's composite applications, you know that "access" has become one of the most daunting barriers to SDLC acceleration. Whether we're talking about access to dev/test environments or access to dependent applications, the ability to pull all the required p...
Much has been published about the Open Compute Project. Initiated by Facebook, it has become an industry effort focused on standardization of many parts and components in the datacenter. Initially focused on racks, power and server design, it has also added storage and now networking t...
Some people are never satisfied. These fearless agents of change are everywhere. They're informed, confident and willing to experiment. They seek out the best business technology solution for the job at hand. They act on instinct. Yes, you could say that they're driven. However, they'...
One of the primary principles of object-oriented programming (OOP) is encapsulation. Encapsulation is the way in which the state of an object is protected from manipulation in a way that is not consistent with the way the variable is intended to be manipulated. The variable (state) is ...
Last week Greg Ferro (@etherealmind) wrote this article about his experience with scripting as a method for network automation, with the ultimate conclusion that scripting does not scale. Early in my career I managed a small network that grew to be a IP over X.25 hub of Europe for a...
Cloud computing has finally come into its own. While we’ve been hearing for 8 years or more that cloud computing would one day take over the enterprise, the fact of the matter is that it’s been slow going. While the spread of cloud computing solutions hasn’t been as rapid as many earl...
The other day I found myself in a discussion with a prospect regarding the merits of capturing complete stack traces for every transaction that flowed through their production system. You see AppDynamics doesn’t do that; we capture problematic business transactions, and this bloke seem...
Despite the hype and drama surrounding the HTTP 2.0 effort, the latest version of the ubiquitous HTTP protocol is not just a marketing term. It's a real, live IETF standard that is scheduled to "go live" in November (2014). And it changes everything. There are a lot of performanc...
We're launching the "Tap In Open Forum": a new series of blog posts where we detail a current topic being discussed in the software development and testing community and invite you to participate in an open discussion with our best and brightest here at Skytap. Feel free to share your ...
We often get asked “Should I use GridFS for file storage with MongoDB”. As with most things, the answer is a staunch “it depends”. GridFS looks like a great idea on paper - a virtual filesystem held within MongoDB which allows for larger than 16MB files to be held, synced and replicat...
One of the benefits of SDN is centralized control. That is, there is a single repository containing the known current state of the entire network. It is this centralization that enables intelligent application of new policies to govern and control the network - from new routes to user ...
Good morning! Or evening, if you happen to be reading this on the other side of the world. Our topic for today is the internet. What? You already know about the internet? No, no, I don’t mean that internet, the boring old one you use to access YouTube and send Facebook updates, e...
I was recently reading Freakonomics’ authors Steven D. Levitt & Stephen J. Dubner’s latest book, Think Like a Freak, and passed over a quote that really resonated with me: So rather than address their root causes, we often spend billions of dollars treating the symptoms and are left t...
Accomplish much more, very rapidly, while spending less -- this is the business technology trend that savvy executives everywhere have embraced. Worldwide IT spending will reach a total $3.7 trillion in 2014, that's a 2.1 percent increase from last year, according to the latest global ...
This week in the States, the Nation celebrates it’s Independence and many people will be attending or setting off their own fireworks show. In Hawaii, fireworks are shot off more during New Year’s Eve than on July 4th and there is even Daytime Fireworks now. Cloud computing is explo...
If LinkedIn profiles are any indication, User Experience (frequently shortened to UX) is the new orange. Indeed, across all manners of technology, there is an increasing focus on improving user experience. Driven in part by Apple’s success on the consumer side, it would appear that IT ...
In the video at this link and embedded below I provide some context on new approaches to data can enhance outcomes for public sector organizations, with a focus on real world use cases. I also mention key requirements which apply at most government organizations for their data and how ...
As revenues from traditional voice and messaging channels continue to dwindle, operators are reassessing their role in the digital communication value chain, and defining what value they can bring to their customers. Of course "customers" increasingly includes partners as well as end ...
Inarguably one of the drivers of software-defined architectures (cloud, SDDC, and SDN) as well as movements like DevOps is the complexity inherent in today's data center networks. For years now we've added applications and services, and responded to new threats and requirements from th...
Welcome to the fourth era of digital. The first three periods or ages or phases — call them what you like — were each defined clearly by transformative events. First, the dawn of the personal computer age in April 1977 with the debut of the Apple II (and validated in August 1981 with...
By now we’ve seen plenty of cost justification on the efficiency of using cloud infrastructure. You can easily Google “Cloud Computing Value” and get a stack of analyst and vendor reports. Or just pop open Amazon’s AWS value calculator and plug in some numbers. There are huge one-time ...
North Bridge in partnership with GigaOm Research released their 2014 Future of Cloud Computing – 4th Annual Survey Results. As you examine the 124 slides, one thing is obvious that the greatest growth in cloud computing is coming from Software-as-a-Service (SaaS). Market research like ...
Some people believe good or bad things always happen in threes. I believe you will always be able to find three (and probably more) things that are good or bad and somewhat related, but sometimes I get surprised by the apparent coincidental appearance of several closely related “things...
Anyone who has been involved with security knows there is a balance to providing both security and privacy and performance at the same time. Security is often blamed for performance woes, particularly when cryptography is involved. SSL and TLS have long addressed this balance by lev...
Compute started its major architectural transition several years ago with the introduction of virtualization. If you pay attention to any of the IT noise today, it should be clear that storage and networking are going through their own architectural evolutions as well. But another shif...
72%. That's an estimate of how much of the IT budget is allocated to simply keeping the lights on (a euphemism for everything from actually keeping the lights on to cooling, heating, power, maintenance, upgrades, and day to day operations) in the data center. In a recent Forrester Res...
Ask two politically opposed people in any given country about the causes of the country’s problems, and guess what? Each will give you an answer filtered through their world-view. Through what they know, and what they believe. That is not to say one is right and one is wrong, both simp...
This article defines long polling and presents a few techniques on how long polling could be used in Spring MVC web applications. Discussion covers both the AJAX and the server part of the solution as well as outlines a few possible options for implementation. The article compares perf...
The announcement this week that Facebook is acquiring Pryte should make operators sit up and take notice. The communications landscape is evolving at break neck speed and operators need to start shouting about where they can bring value, before they get drowned out by the noise. Beca...
About 8 years ago at my previous employer we started a project related to Autonomic Networking. Autonomic Networking is modeled after Autonomic Computing, an IBM initiative from the early 2000s, targeted at creating self managing computing elements. The network version intends to creat...
Experts say that cloud computing is disruptive and then continue on to discuss how the cloud quickly enables innovation while competition between cloud service providers drive costs down. Both of these scenarios are accurate, but the disruption from cloud has additional shockwaves that...
Some of you will remember Caddyshack - that campy '80s movie in which Chevy Chase often offered crazy advice, like "be the ball." For those of you who don't (because you're too young or were living under a rock), the premise of this particular piece of advice was along the lines of Obi...
Internet usage is evolving, and so are the application scenarios for business technology. In the foreseeable future, desktop personal computers will produce a much smaller share of commercial internet protocol (IP) traffic. Mobile and portable devices -- other than PCs -- will drive th...
It was a long and full day for me at Devops Summit. I could fill a week or more with blogs on ideas I both agreed - and of course, disagreed - with from sessions and panels. But for now, here's a digestible selection. Ephemeral Infrastructure From John Willis (@botchagalupe) sessi...
In December 2012, research firm Coleman Parkes released a landmark study about the business benefits of service virtualization. The findings were significant: 60% of the respondents indicated that unavailability of systems for testing routinely caused software projects to be delivered ...
It’s no secret that doing nothing is often considered a safe bet. The psychology behind inaction is well understood, particularly in the case of IT — the path of least disruption is usually maintaining the status quo rather than trying something new, But once in a while, a decision ...
There are two fairly recurrent memes in IT infrastructure: the There’s an API for that! theme, and the Out of box! theme. It is actually telling that both continue to get play in IT given that they represent polar opposites. Assuming that each has a value, when do you need something th...
In many industries today the competitive battleground is quickly shifting to the effective use of data to drive marketing, sales, customer support, R&D, and to deliver hyper-personalized user experiences and digital products. These changes are most readily seen in companies that engag...
You often hear people say, ‘oh, this is a living document,’ to indicate that the information is continually updated or edited to reflect changes that may occur during the life of the document. Your infrastructure is also living and dynamic. You make changes, updates or upgrades to addr...