Mark Ryland presents and demoes identity and access management concepts as used in the cloud and EC2 security groups and packet networking inside the Amazon AWS. By Mark Ryland
Daniel Solano Gomez shares 11 tips for drastically enhancing the performance of Clojure applications crunching numbers. By Daniel Solano Gomez
Months of murmurs and strenuous preparation look like they have paid for the public IaaS, OpenStack, with cloud computing giant Rackspace the first to take a punt on the new pretender. Rackspace's hosting portfolio, including Cloud Databases, Control Panel Cloud Servers, has now become the first to deploy such a large-scale OpenStack public cloud, orchestrated by OpenStack's Nova controller. This is a big deal for their customers, allowing them to switch across private, public or hybrid models, or deploy in a data center of their choosing. It doesn't have to be Rackspace. This decision was nailed on though - given Rackspace's initial part alongside NASA developing the open source infrastructure. But to gain true open source plaudits, an Apache license followed, as did the number of interested clients. The likes of Red Hat, HP, IBM and Yahoo! all pledged their allegiance to the project. Once NASA stepped aside, seeing that their role was done, the interest really picked up. With the recent Essex release, companies could almost taste this highly-anticipated infrastructure, and this announcement effectively becomes the green light to use it in production environments. If you weren't already on the mailing list, then perhaps the allure of getting 200 servers in 20 minutes might just get you signed up. “Rackspace is disrupting the current model of how IT is consumed,” said Lanham Napier, CEO of Rackspace. “We have delivered on our promise to implement OpenStack in our cloud offerings, and to free customers from the vendor lock-in that they face at other major cloud providers. We’re delivering open, high-performance, scalable and easy-to-use cloud solutions, while empowering customers to choose features, services, prices and locations based on the needs of their business. At the heart of Rackspace is Fanatical Support, which means we put our customers’ needs and wants first. Today, we are extending this approach by giving the market an open alternative, enabling them to choose how and where they use the cloud.” According to the Register, Rackspace had been internally testing OpenStack six months prior to the Essex code in April, suggesting that this is tried and tested and then some. This week's switch-on will certainly get other parties interested, now they know that it's all good at OpenStack Central. The project can only go from strength to strength here, as more and more turn towards OpenStack's open nature. Keep your eyes peeled for the Folsom release - that might be the real indication of where the project heads next.
Most of us we are using Jenkins/Hudson to implement Continuous Integration/Delivery, and we manage job orchestration combining some Jenkins plugins like build pipeline, parameterized-build, join or downstream-ext. We require configuring all of them which implies polluting the job configuration through multiple jobs, which takes the system configuration very complex to maintain. Build Flow enables us to define an upper level flow item to manage job orchestration and link up rules, using a dedicated DSL.
Sebastian Meyen talks to Thoughtworks' Jez Humble, covering just a snippet of the concepts behind the Continuous Delivery approach
After a fairly bleak few months at SpringSource, with the departure of several key figures including Spring founder Rod Johnson, it’s back to business as useful. Thankfully we’re glad to report that development is motoring on, with the highly anticipated Spring REST Data 1.0 project getting its second release candidate. It appears that Spring is putting a heavy emphasis upon the wider Spring Data project, of which REST falls under. With the true emergence of non-relational databases, such as MongoDB and Cassandra and map-reduce frameworks like the one present in Apache Hadoop, SpringSource need to stay relevant, as they prepare for a cloud offensive. In all, there are 11 subprojects to Spring Data: including homes for big data in Apache Hadoop, VMware’s own data-grid GemFire and key value store Redis. The REST Data Project plays a central role, linking up performing CRUD operations of persistence models using HTTP and Spring Data Repositories and making it far easier to expose the repositories as RESTful endpoints. New functionalities are added for this release candidate. JSONPE now handles errors and there’s also the ability to turn off CRUD methods. Integration with existing Spring MVC applications is improved as well. Things have moved along quickly, with the first milestone only being reached back in April and a first release candidate only in June. Be sure to check out the raft of new and updated documentation, such as: JSONP Support Configuring the REST URL path Adding Spring Data REST to an existing Spring MVC Application Checking out the Github repository is also a wise move. We can expect the first Spring Data release train soon, with Stage One expected in mid-August before going GA not long after. The release train is part of a wider effort to simultaneously release all store modules and ensure that common functionality is maintained. Not to mention the fact that this will include updates from Spring Data Commons, JPA, MongoDB, Neo4J and Gemfire projects. Spring definitely needs an injection of something new to take it to the next level. By embracing modern data technologies, the Spring Data Project might just give Spring developers the revitalisation they seek.
Thursday is code puzzler day here at DZone. The idea is simple: solve the coding problem as efficiently as you can, in any language or framework that you find suitable. Note: Even though there really is nothing stopping you from finding a solution to this on the internet, try to keep honest, and come up with your own answer. It's all about the participation!Return the Factorial ...
As of 4.0 Lucene has switched to a new pluggable codec architecture, giving the application full control over the on-disk format of all index files. We have a nice collection of builtin codec components, and developers can create their own such as this recent example using a Redis back-end to hold updatable fields. Preview Text: As of 4.0 Lucene...
The "Heroes of Java" series continues. Interview 17 came a long way from the tropical island of Curacao. Bauke took the time to answer my questions and I am happy to have him joining the series! Preview Text: Bauke Scholtz is more commonly known under his nickname "BalusC". With nearly 12k answers on stackoverflow.com and...
Have you updated to Maven 3.0.4 yet? 1.1 It's been available in Maven Central since 17-Jan-2012. Preview Text: I have been using Maven for ages now. I was running on 3.0.3 till last week. Being a Maven evangelist it is unlike of me to have not moved onto the latest version for so long. Legacy Sponsored: ...
In this series we have already learnt to set up a basic Spring MVC application and learnt how to handle forms in Spring MVC. Now it is time to take on some more involved topics. However, before we venture into deeper waters, let's get some basics set up. Unit testing Preview Text: In this series we have already learnt to set up a basic...