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Databases

Google Spanner: First Globally Scalable Database With External Consistency 49

Posted by Unknown Lamer
from the all-while-ironing-your-clothes dept.
vu1986 writes with this bit from GigaOm: "Google has made public the details of its Spanner database technology, which allows a database to store data across multiple data centers, millions of machines and trillions of rows. But it's not just larger than the average database, Spanner also allows applications that use the database to dictate where specific data is stored so as to reduce latency when retrieving it. Making this whole concept work is what Google calls its True Time API, which combines an atomic clock and a GPS clock to timestamp data so it can then be synched across as many data centers and machines as needed." Original paper. The article focuses a lot of the Time API, but external consistency on a global scale seems to be the big deal here. From the paper: "Even though many projects happily use Bigtable, we have also consistently received complaints from users that Bigtable can be difficult to use for some kinds of applications: those that have complex, evolving schemas, or those that want strong consistency in the presence of wide-area replication. ... Many applications at Google have chosen to use Megastore (PDF) because of its semi-relational data model and support for synchronous replication, despite its relatively poor write throughput. As a consequence, Spanner has evolved from a Bigtable-like versioned key-value store into a temporal multi-version database. Data is stored in schematized semi-relational tables; data is versioned, and each version is automatically timestamped with its commit time; old versions of data are subject to configurable garbage-collection policies; and applications can read data at old timestamps. Spanner supports general-purpose transactions, and provides a SQL-based query language." Update: 09/20 17:57 GMT by T : Also in a story at Slash BI.
Programming

The Perils of Developers Hooking Up 278

Posted by timothy
from the like-with-like-among-their-own-kind dept.
jammag writes "Who better for a developer to love than another developer? Yet as a veteran coder describes, it's not always a good idea for a programmer to fall for another programmer. He describes his experience observing — and getting partially pulled into — a romance within a development team. Part of the problem, perhaps, is that some developers spend so much time buried in code that, well, they quickly find themselves out of their league. Then again, why not love among the code?"
PC Games (Games)

How Indie Devs Made an 1,800-Player Action Game Mod In Their Spare Time 87

Posted by Soulskill
from the massively-multiplayer-regular-game dept.
An anonymous reader writes "Just Cause 2 Multiplayer has been getting a lot of press lately, but this making-of feature points out how the mod raises serious questions about the games industry: if 1,800-player massively multiplayer action games are possible on one server, why did it take a group of modders to prove it? From the article: 'There’s more chaos to come. That 1,800 player limit isn’t maxing out the server or the software by any means. Foote says that the team, who first met online seven years ago playing the similar Multi Theft Auto GTA mod, are "yet to reach any real barrier or limitation preventing us from reaching an even higher player count than the previous public tests." When it’s ready, the team will release the software for everyone to download and run their own servers, wherever they are in the world.'"
Software

Ask Slashdot: How Much Is a Fun Job Worth? 397

Posted by Soulskill
from the three-hundred-fifty-two-dollars-and-eight-cents dept.
Nicros writes "I have the good fortune to be a lead software engineer in a really fun company. The culture and people are great, and while the position has some down sides (distance from home, future opportunities), in general I'm quite happy there, and I wasn't looking for a new job. Now, I've had an offer to go be a software director for a new company. The pay is more than 10% better, the location is closer to home, and the people seem nice. I would get to grow a new group as I saw fit, following some regulatory guidelines. Problem is, I just can't decide what to do, and I'm not even sure why I can't decide. Maybe it has to do with leaving a job that I like (something I've never done) that just doesn't sit well with me. Maybe it's fear. I'm 40, so maybe it's just getting older and appreciating stability more. But then again, I have my current position dialed in, and could use a change. I have ambition, and my current company has made every effort to work with me to develop my career — probably more in the business development side, but that could be fun too. That career path is just more vague and longer-term than jumping right into a director position, with no guarantee that it would even work out. In the new company, software is not what this company does primarily; not many people would use the software, so the appreciation level would be much lower than my current position. Has anyone made a transition like this in software? How did it work out? Did you stay or did you go? Why? What's more important, the people and culture at a job, or the opportunities that job presents for future growth?"
Graphics

Mesa Finally An OpenGL Implementation (On Intel Hardware) 80

Posted by Unknown Lamer
from the after-dnf-it-had-to-happen dept.
Mesa 3D has famously always not been technically OpenGL (lacking certification), but times are changing: "This is a great day for Mesa and open-source graphics drivers. Just a tad over a month ago, I submitted OpenGL ES 2.0 conformance test results to Khronos for Intel Sandy Bridge and Ivy Bridge GPUs with Mesa 8.0.4. There were no objections during the 30 day review period, so we are now officially conformant! Finally being on that list is pretty cool. Not only is this great news for my team at Intel, but it's terrific news for Mesa. Mesa has had a long history with OpenGL, the ARB, and Khronos. This is, however, the first time that Mesa has ever, in any way, been listed as a conformant implementation. This is a big boost to Mesa's credibility."
Education

University Team Builds Lego and Raspberry Pi Cluster 147

Posted by Unknown Lamer
from the build-a-beowulf-wait-a-minute dept.
hypnosec writes about a neat little hack using Lego, Raspberry Pis, and Scratch to construct a "supercomputer." From the article: "A team of computational engineers over at the University of Southampton led by Professor Simon Cox have built a supercomputer using Raspberry Pi and Lego. The supercomputer is comprised of 64 processors, 1TB of storage (16GB SD cards in each of the Raspberry Pis) and can be powered on using just a single 13-amp mains socket. MPI is used for communications between the nodes through the ethernet port. The team managed to build the core of the supercomputer for under £2500. Named 'Iridis-Pi' after University of Southampton's supercomputer Iridis, the supercomputer runs software that was built using Python and Scratch. Professor Cox used the free plug-in 'Python Tools for Visual Studio' to develop code for the Raspberry Pi." Lots of pictures of the thing, and a howto on making your own.
Facebook

Zuckerberg: Betting On HTML5 Was Facebook's Biggest Mistake 290

Posted by Soulskill
from the passing-on-the-mega-death-ray-may-have-been-wrong-too dept.
An anonymous reader writes "Speaking yesterday at TechCrunch Disrupt, Facebook CEO Mark Zuckerberg acknowledged that the company's stock performance was disappointing. He also made an interesting remark about Facebook's development efforts over the past couple of years: 'The biggest mistake we made as a company was betting too much on HTML5 as opposed to native. It just wasn't ready.' According to Mashable, 'the benefits of cross-platform development weren't enough to outweigh the downsides of HTML5, which pulls in data much more slowly than native code, and is much less stable. ... Now, Zuckerberg says, Facebook is focused on continuing to improve the native mobile experience on iOS, as well as bringing a native app to Android.'"
Education

Is a Computer Science Degree Worth Getting Anymore? 630

Posted by Soulskill
from the art-history-is-back-on-top dept.
snydeq writes "Self-taught technologists are almost always better hires than those with a bachelor's degree in computer science and a huge student loan, writes Andrew Oliver. 'A recruiter recently asked me why employers are so picky. I explained that of the people who earned a computer science degree, most don't know any theory and can't code. Instead, they succeed at putting things on their resume that match keywords. Plus, companies don't consider it their responsibility to provide training or mentoring. In fairness, that's because the scarcity of talent has created a mercenary culture: "Now that my employer paid me to learn a new skill, let me check to see if there's an ad for it on Dice or Craigslist with a higher rate of pay." When searching for talent, I've stopped relying on computer science degrees as an indicator of anything except a general interest in the field. Most schools suck at teaching theory and aren't great at Java instruction, either. Granted, they're not much better with any other language, but most of them teach Java.'"
Graphics

Converting RSS Feeds To a Dynamic 3D Scene In 120 Lines of Code 73

Posted by Soulskill
from the something-you-never-knew-you-needed dept.
descubes writes "Tao Presentations is a 3D presentation tool based on a 3D dynamic document description language. This makes it very easy for developers to create their own 3D shows, illustrate talks in an innovative way, even build small interactive 3D applications. An example included in the latest release grabs RSS feeds from a variety of sources (including Slashdot) and turns them into a 3D scene, all in real-time and in about 120 lines of code. It fetches the pictures directly from the web site and maps them on 3D shapes. And this is only a starting point. Tao Presentations can display 3D objects, drive the majority of 3D displays (including glasses-free 3D displays from Alioscopy, Philips or Tridelity), use GLSL shaders for advanced effects, and much more. Tao Presentations is free (as in beer), and the document description language is based on the free (as in speech) XL programming language."
Operating Systems

Why Are Operating System Version Names So Absurd? 460

Posted by timothy
from the bet-you-can-think-of-a-few-reasons dept.
jfruh writes "Apple's spent more than a decade on version 10 — or, rather, X — of its flagship operating system, with .x versions named after big cats (and many of them, it turns out, after the same big cats). Ubuntu Linux is scrambling to find ever more obscure animals to alliteratively name its versions after. And let's not even talk about Windows, whose current shipping OS is sold as Windows 7 but is really Windows NT 6.1. Why is this area of software marketing so ridiculous?"
Intel

Intel Encodes Data In Flickering LEDs (and Shows Off Other Bright Ideas) 65

Posted by timothy
from the hidden-in-the-noise dept.
darien writes "On the day before the Intel Developer Forum opens in San Francisco, Intel has been showing off some of its current research projects, including a system for encoding data in apparently steady light sources, a Kinect-based projected 'touch interface' that works on any surface and an ambitious signage concept that could revolutionise your weekly shop." My favorite thing about light-based networking is that it's the basis of a certain strain of (all too plausible, all too often) conspiracy theory. ("The modern LED 'eco-friendly' light bulb is also a two-way communications device." — easy to believe, since many of them can be. )
Open Source

Torque 3D To Be Released On Github Under the MIT License 54

Posted by timothy
from the tux-racer-reboot-please dept.
New submitter iamnothing writes "Eric Preisz, CEO of GarageGames, announces, 'Eleven years ago, The GarageGames founders did an incredibly innovative thing when they sold a full source game engine for $100. We are excited to continue in their footsteps by announcing that we will be releasing Torque 3D as the best open source game technology in the world. Once again, GarageGames will be changing game development.'"
Databases

PostgreSQL 9.2 Out with Greatly Improved Scalability 146

Posted by Unknown Lamer
from the rev-your-engines dept.
The PostgreSQL project announced the release of PostgreSQL 9.2 today. The headliner: "With the addition of linear scalability to 64 cores, index-only scans and reductions in CPU power consumption, PostgreSQL 9.2 has significantly improved scalability and developer flexibility for the most demanding workloads. ... Up to 350,000 read queries per second (more than 4X faster) ... Index-only scans for data warehousing queries (2–20X faster) ... Up to 14,000 data writes per second (5X faster)" Additionally, there's now a JSON type (including the ability to retrieve row results in JSON directly from the database) ala the XML type (although lacking a broad set of utility functions). Minor, but probably a welcome relief to those who need them, 9.2 adds range restricted types. For the gory details, see the what's new page, or the full release notes.
Open Source

4chan Undergoing Major Revision, Getting Public API 166

Posted by timothy
from the waiting-on-the-verticals dept.
AdmiralXyz writes "Even the darkest corners of the internet aren't immune to the Web 2.0 boom: BoingBoing reports that 4chan is working on the largest codebase update in its history. The new 4chan will include as standard the functionality of popular browser plugins for using the site, as well as a JSON API so- hooray?- anyone can have immediate access to the contents of 4chan for any purpose they like. This represents a significant update to the heretofore haphazard development process of 4chan, and opens up the possibility of third-party 4chan apps... though probably not on the App Store."

A LISP programmer knows the value of everything, but the cost of nothing. -- Alan Perlis

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