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Andres Navarro06/03/14
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The Producer and Consumer Design Patterns

The producer / consumer design pattern is a pre-designed solution to separate the two main components by placing a queue in the middle, letting the producers and the consumers execute in different threads. This way the production of tasks to be consumed is absolutely independent from its consumption.

Yuexiang Zhang06/03/14
6487 views
0 replies

10 Lines of Clojure Code to Build A Simple Balancer

With Nginx-Clojure we can make some looking difficult tasks become very simple.This article will give an example about using Clojure code to build a simple balancer with a role based dynamic bandwidth limiter on Nginx.

Chris Shayan06/03/14
2188 views
0 replies

Illustrating Our Continuous Delivery Matrix

In VietnamWorks.com we managed to implement Continuous Delivery (CD), and we used following image as our reference. But why did we decide to use CD? We wanted to build the right features for our products, avoid as many risks (fail fast, succeed faster), increase our release cycle, and continue a stable product.

Lorna Mitchell06/03/14
2285 views
0 replies

Colourless Git Output

I teach git and often have issues with bad projectors where you can't see the colours. There's lots of documentation on how to turn on colours in git but not so much about how to turn them off. Try putting the following into .git/config:

Peter Verhas05/31/14
3433 views
0 replies

Unit Test Deprecated Methods

Deprecated methods have to be treated different. At least in my opinion.

Michael Mainguy05/30/14
3686 views
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Testing Love and Polyamorous TDD

Yes, Test Driven Development (TDD) is a good practice, but it is NOT necessarily superior to: integration testing, penetration testing, operational readiness testing, disaster recovery testing, and any of a large number of other validation activities that should be a part of a software delivery practice.

Barton George05/30/14
3291 views
0 replies

Learning about Puppet Enterprise – DevOps Days Austin

Last week was DevOps Days here in Austin and I conducted a bunch of interviews. On Friday I shared an interview with Andrew Clay Shafer who gave the first-day keynote. The next three interviews I’ll be posting deal with configuration management tools.

Mohamed Radwan05/30/14
2621 views
0 replies

Fix Build-Deploy-Test Workflow Error: There Are No Test Cases Matching the Criteria Specified

You may face the following error while you running your Build-Deploy-Test workflow. Exception Message: There are no test cases matching the criteria specified. Use Microsoft Test Manager to view the test cases. This could happen for many reasons.

Paul Hammant05/29/14
5605 views
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Developer Delayed Development

Developers, when they are staffed on a project, quickly become the largest and therefore most expensive group. At that moment, everything has to be optimized for their greatest throughput. If we could delay that moment, then we could delay the coupled increasing of costs.

Chris Haddad05/29/14
4303 views
0 replies

The Agile DevOps PaaS Mindset

Adopting agile devops requires a structural mind shift, and successful IT teams follow manifesto guidance to change delivery dynamics, take small steps to build one team, focus on real deliverables, accelerate reactive adaptation, and guide continuous loop activity.

Anh Tuan Nguyen05/28/14
2411 views
0 replies

Testing Effectively: the Debate Regarding TDD

Recently, there is a heaty debate regarding TDD which started by DHH when he claimed that TDD is dead. This ongoing debate managed to capture the attention of developers world, including us. Some mini debates have happened in our office regarding the right practices to do testing. I will present my own view.

Edmund Kirwan05/28/14
1770 views
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A Funny Thing That Happened on the Way to the Refactory

Oracle says, "The hierarchical naming structure for packages is intended to be convenient for organizing related packages in a conventional manner, but has no significance in itself." It is precisely this significance that some principles attempt to capture.

Dror Helper05/27/14
3489 views
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What’s wrong with TDD

A while ago I was asked to talk about the problems of using TDD – being me I’ve decided to do the exact opposite, this session was names “what is wrong with TDD”.

Chris Haddad05/27/14
4470 views
0 replies

DevOps PaaS delivers at the speed of business demand

Unfortunately, most IT teams do not have an environment fostering the rapid iteration, streamlined workflow, and effective collaboration required to operate at the speed of now and capture business opportunity.

Hubert Klein Ikkink05/26/14
4915 views
0 replies

Grails Goodness: Exception Methods in Controllers

Since Grails 2.3 we can define exception methods in our controllers to handle exceptions raised by code invoked in the action methods of the controllers.

Dalip Mahal05/26/14
1370 views
0 replies

Are Debuggers Crutches?

Debuggers have become powerful tools, but like a drug have we become too dependent on them? A persistent fact in software is that between pre-test, QA, and deployment the cost of finding bugs is 1:10:100. Have we become so dependent on debuggers that we accept a process that is 10 times more expensive than other alternatives?

Chris Haddad05/26/14
9426 views
0 replies

DevOps Equals Principles Plus Practices

Successful movements have a clear manifesto outlining goals and principles. Many DevOps adopters may not be aware of the DevOps Manifesto (created by Jez Humble @jezhumble) nor how successful DevOps requires keeping a clear focus on principles, practices, and value (instead of infrastructure tooling.

Gaurav Shukla05/26/14
8348 views
0 replies

Steps to Enable OpenID Authentication in Spring-Security Application

In this article, you will find the steps to enable OpenID authentication in Spring-Security applications. Sections covered include the changes in spring-Security.xml, a sample implementation of beans defined in the config file, JSP changes, and how to test the application.

Benjamin Ball05/25/14
3156 views
0 replies

The Best of the Week (May 16): DevOps Zone

Make sure you didn't miss anything with this list of the Best of the Week in the DevOps Zone (May 16 to May 22). This week's topics include the DZone Research Continuous Delivery update, Continuous Delivery loose ends, abstraction and automation, how TDD affects design, and thoughts on testing.

Abimaran Kugathasan05/24/14
7342 views
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Evil: Getters and Setters Where They're Not Required

We programmers keep our instance variables private and automatically add public setters and getters to them. This is the same as making the instance variables public. Why are we exposing our variables in this way?

Sam Kyatham05/24/14
3471 views
3 replies

Some of the JDK 1.7 Improvements in a Nutshell

In this article, you'll find a list of the top 10 improvements that impressed the author over previous versions of JDK.

Bozhidar Bozhanov05/23/14
4612 views
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Integration Tests for External Services

In regular integration tests, we would have an integration deployment of all sub-systems, in order to test how they work together.

Pascal Alma05/23/14
5491 views
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Running the Maven Release Plugin with Jenkins

Recently I started to implement our release process in Jenkins. Until then I just ran the release plugin of Maven on my local machine which did the job. As I said we decided to move this task to Jenkins.

Jay Fields05/23/14
1883 views
0 replies

Working Effectively with Unit Tests

Unit Testing has moved from fringe to mainstream, which is a great thing. Unfortunately, as a side effect developers are creating mountains of unmaintainable tests.

John Sonmez05/22/14
2381 views
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Why You Need An Automation Testing Framework

Blackbox automation testing should be part of any successful software development organization. Unit testing is great, but to cover the largest area of your software with the least effort you need to have blackbox automation testing. Not only that, but you also need to have an automation testing framework.