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Spark Grows Up and Scales Out

Javalobby Syndicated Feed - Sat, 27-Jun-15 22:00
Written by Craig Wentworth.To understand the furor that’s greeted recent vendor announcements around open source analytics computing engine Spark, and some commentary seemingly setting up a Spark versus Hadoop battle, it’s worth taking a moment to recap on what each actually is (and is not). Preview Text:  There's been a lot of furor...
Categories: Java

Working with Merge and Identity Column -- A Practical Scenario

Javalobby Syndicated Feed - Sat, 27-Jun-15 22:00
Introduction As we all know about the Identity columns and Merge statement. We are not going to discuss any boring theoretical tropics related to it. Preview Text:  As we all know about the Identity columns and Merge statement. We are not going to discuss any boring theoretical tropics related to it. Better we are discussing here with a...
Categories: Java

Does DevOps Reduce Technical Debt--or Make it Worse?

Javalobby Syndicated Feed - Fri, 26-Jun-15 23:00
DevOps can help reduce technical debt in some fundamental ways. Continuous Delivery/Deployment First, building a Continuous Delivery/Deployment pipeline, automating the work of migration and deployment, will force you to clean up inconsistencies and holes in configuration and code deployment, and inconsistencies between development, test and production environments. Preview...
Categories: Java

Docker Events and Docker Metrics Monitoring

Javalobby Syndicated Feed - Fri, 26-Jun-15 23:00
Docker deployments can be very dynamic with containers being started and stopped, moved around the YARN or Mesos-managed clusters, having very short life spans (the so-called pets) or long uptimes (aka cattle).  Getting insight into the current and historical state of such clusters goes beyond collecting container performance metrics and sending alert notifications. ...
Categories: Java

Problems with Cobertura and Sonar 5.1

Javalobby Syndicated Feed - Fri, 26-Jun-15 22:30
Recently, I was having some bother trying to use Sonar 5.1 with my Grails 2.4.4 project. I was using the usual Groovy stuff: Gmetrics, Codenarc and Cobertura. For the Sonar database I was using Postgres 9.4.The logfile for the Sonar runner just gave me this: Preview Text:  Recently, I was having some bother trying to use Sonar 5.1 with my...
Categories: Java

Big Data Is Still a Game Changer, but the Game has Changed. Here's How.

Javalobby Syndicated Feed - Fri, 26-Jun-15 22:30
Written by Mark Gamble for Actuate. Preview Text:  But the “bigness” of Big Data isn’t the game changer anymore. The real competitive advantage from Big Data lies in two areas: how you use the data, and how you provide access to the data. The way you address both of those goals can make or break an application – and, in some cases, even...
Categories: Java

Managing Outsourced Quality Assurance Teams

Javalobby Syndicated Feed - Fri, 26-Jun-15 22:30
Business leaders like to be in control of every aspect of their operations, but if any element is outsourced, that sense of governance becomes much more difficult to maintain. Outsourcing can be appealing to organizations looking for talent at reasonable costs - it just takes significant planning to pull off successfully. When a team is in a different location from the company, there are a...
Categories: Java

LastPass Breach, Password Security, and Reason

Javalobby Syndicated Feed - Fri, 26-Jun-15 22:30
LastPass, the password manager that lets you manage your passwords between different devices, was recently hacked. From this there has been a fair amount of FUD circulating and not enough rational thought. With that in mind, this seems like a good time to talk about password security and LastPass with some rational ideas. Since we can't get rid of passwords just yet we need to manage them well. ...
Categories: Java

Employee Engagement: The Magic Potion?

Javalobby Syndicated Feed - Fri, 26-Jun-15 22:30
I am sure by now most people understand that there is strong correlation between employee satisfaction and business results. If you need more convincing have a read of these two articles: Forbes & Research Paper So how do you best go about measuring it? Preview Text:  I am sure by now most people understand that there is strong...
Categories: Java

How to Keep REST API Credentials Secure

Javalobby Syndicated Feed - Fri, 26-Jun-15 22:30
If you are building mobile apps then you are connecting to some REST API. For example, if you want to resolve an address to a latitude/longitude information to display on a map, you might use the Google Geocoding API: Preview Text:  Setting up an using the Appery.io Secure Proxy is simple. It provides a very important feature by allowing to keep...
Categories: Java

Analyzing Application Workload Data with Apprenda and R

Javalobby Syndicated Feed - Fri, 26-Jun-15 22:00
One of the most important kinds of data a Platform as a Service (PaaS) can leverage is its knowledge of guest applications that run within its purview. A PaaS should know all sorts of things about guest applications – their architecture, dependencies, scale across infrastructure, and more. Preview Text:  Apprenda’s approach as a PaaS is...
Categories: Java

[VIDEO] How to Create a Pub/Sub Application with MongoDB

Javalobby Syndicated Feed - Fri, 26-Jun-15 22:00
Many applications need to be alerted when new documents are inserted or modified in the database. These include real-time apps, or features such as notifications, messaging, or chat. It is possible to build this kind of application with MongoDB, using features that are native to the database: Capped Collections and Tailable Cursors! Preview Text:  ...
Categories: Java

Notes from Troy Hunt's Hack Yourself First Workshop

Javalobby Syndicated Feed - Fri, 26-Jun-15 22:00
Troy Hunt (@troyhunt, blog) had a great, very hands-on 2-day workshop about webapp security at NDC Oslo. Here are my notes. Highlights – resources Personal security and privacy Preview Text:  Troy Hunt (@troyhunt, blog) had a great, very hands-on 2-day workshop about webapp security at NDC Oslo. Here are my notes. Legacy ...
Categories: Java

What Different Security Testing Methodologies Are Out There?

Javalobby Syndicated Feed - Fri, 26-Jun-15 22:00
Every business has unique characteristics that set it apart from other organizations, even within the same industry. For this reason, it shouldn't be surprising that there's not a one-size-fits-all approach to app security testing. Each company has certain protection expectations and regulations to adhere to, making it essential to find the best way to achieve these goals. Preview...
Categories: Java

Geek Reading Week of June 26, 2015

Javalobby Syndicated Feed - Fri, 26-Jun-15 22:00
Leading today, VentureBeat reports on the quiet launch of Google’s Cloud Source Repositories. This seems like something we should have heard more about, but I don’t remember seeing anything about it. Amazon AWS announces the availability of all things Alexa, the Skills Kit, the Voice Service and a Fund. Last but not least, we have AJ Kohn, from Blind Five Year Old, talking about...
Categories: Java

Learn R: How to Create Data Frames Using Existing Data Frame

Javalobby Syndicated Feed - Fri, 26-Jun-15 22:00
This article represents commands that could be used to create data frames using existing data frame. Please feel free to comment/suggest if I missed to mention one or more important points. Also, sorry for the typos. Following is a list of command summaries for creating data frames by extracting multiple columns from existing data frame based on the following criteria, a sample of which is...
Categories: Java

Windows 10 Isn’t Really Free for Software Testers

Javalobby Syndicated Feed - Fri, 26-Jun-15 06:25
Preview Text:  Over the past year, we have had many articles suggesting how Window 10 would be free for anyone who signed up to test it. In fact, what you do with your current subscription to Windows Insider Program dictates if you will have to pony up for a new license. Legacy Sponsored:  ...
Categories: Java

Writing a Download Server. Part II: headers: Last-Modified, ETag and If-None-Match

Javalobby Syndicated Feed - Thu, 25-Jun-15 23:00
Caching on the client side is one of the foundations of World Wide Web. Server should inform client about validity of resources and client should cache them as eagerly as possible. Without caching the web as we see it would be insanely slow. Just hit Ctrl + F5on any website and compare it with ordinary F5 - the latter is much faster as it uses already cached resources....
Categories: Java

CryTek's CryEngine 3.8.1 Released: Updates Include Linux and VR Support

Javalobby Syndicated Feed - Thu, 25-Jun-15 23:00
CryTek just released its CryEngine 3.8.1, an update packed with features. The CryEngine website dubs this the heftiest upgrade since debuting their Engine-as-a-Service in May. Among the many new features is virtual reality (VR) support, OpenGL compatibility, and Linux support. Preview Text:  CryTek just released its CryEngine 3.8.1, an update...
Categories: Java

Does Convergent Evolution of Code Produce Code Clones?

Javalobby Syndicated Feed - Thu, 25-Jun-15 23:00
[This article was written by Dr. Elmar Juergens]We have had countless discussions about code clones with the teams responsible for their maintenance. These teams generally accept that some of the clones in their software are the product of copy & paste. In many cases this is obvious, since the clones share some quirks that can only be plausibly explained by copy & paste (e.g. identical...
Categories: Java

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