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Extreme Developer eLearning Courses Giveaway

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Hey fellow geek! We have some great news! This week is giveaway week! We are running a contest giving away FREE eLearning Courses! We have everything, whether you are focused on Java programming, Web Development, System Administration, or well.. all the above! There will be totally 3 winners. Let’s see what prizes you can win… 1) Complete Java Programming Bootcamp ...

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Advice for managing software development?

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When I started writing my management blog series one reader expressed their hope that I would give advice on how to manage software development. I’m sorry, but this series has contained very little advice on how to manage software development. There is a good reason for that: It is hard to give specific advice to managers. You can’t say “If ...

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3 Easy Things to Do to Make Your Microservices More Resilient

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One of the advantages of building distributed systems as microservices is the ability of the system as a whole to withstand faults and unexpected failures of components, networks, compute resources, etc. These systems are resilient even in the face of faults. The idea behind this resiliency seems simple: if our monolith fails, everything for which it’s responsible fails along with ...

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When is Agile Wrong for You?

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People often ask me, “When is agile  right or not right for a project?” I’ve said before that if the team wants to go agile, that’s great. If the team doesn’t, don’t use agile. That answer is insufficient. In addition to the team, we need management to not create a bad environment for agile. You might not have a great ...

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JBoss Fuse: dynamic Blueprint files with JEXL

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In this post I’ll show how to add a little bit of inline scripting in your Apache Aries Blueprint xml files. I wouldn’t call it necessarely a best practice, but I have always had the idea that this capability might be usueful; probably I started wanting this when I was forced to use xml to simulate imperative programming structures like ...

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Whirlpool: Microservices Using Netty And Kafka

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Introduction In my last blog, I introduced Netty being used as a web server. That example worked well… as long as a broadcast server is what was needed. Most of the time that is not very useful. It’s more likely that the need is for each client to receive only the data intended for them, with broadcasts reserved for special circumstances like “The ...

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G-Reg and ESB integration scenarios for Governance

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WSO2 Enterprise Service Bus (ESB) employs WSO2 Governance Registry for storing configuration elements and resources such as WSDLs, policies, service metadata, etc. By default, WSO2 ESB shipped with embedded Registry, which is entirely based on the WSO2 Governance Registry (G-Reg). Further based on the requirements, you can connect to a remotely running WSO2 Governance Registry using a remote JDBC connection ...

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Apache Apex on MapR Converged Platform

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Editor’s Note: This guest post was authored by Charu Madan and Thomas Weise. In today’s world of immense competition and customer churn, Telecom Providers are reinventing and transforming to be able to provide their customers with the best possible customer care and satisfaction. The primary goal is to minimize this churn and increase the customer lifetime value. Leveraging the power ...

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Apache Spark Machine Learning Example with Scala

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In this Apache Spark Machine Learning example, Spark MLlib will be introduced and Scala source code reviewed.  This post and accompanying screencast videos will demonstrate a custom Spark MLlib Spark driver application.  Then, the Spark MLLib Scala source code will be examined.  There will be many topics shown and explained, but first, let’s describe a few machine learning concepts. Machine ...

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Is there any evidence for ripple effect?

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This blog has droned on and on about ripple-effect husbandry (or lack thereof) and its determining the quality of source code structure. Ripple effect – whereby gently polishing code in one place radiates wobbles and cracks and shattering crashes far and wide – was defined in 1974 and has guided structural toil ever since. But does it really exist? Or ...

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