Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror

Submission + - PostgreSQL getting parallel query 1

iamvego writes: A major feature PostgreSQL users have requested for some time now is to have the query planner "parallelize" a query. Now, thanks to Robert Haas and Amit Kapila, this has now materialized in the 9.6 branch. Robert Haas writes in his blog entry that so far it only supports splitting up a sequential scan between multiple workers, but should hopefully be extended to work with multiple partitions before the final release, and much more beside in future releases.
Idle

Directed Energy Weapon Downs Mosquitos 428

wisebabo writes "Nathan Myhrvol demonstrated at TED a laser, built from parts scrounged from eBay, capable of shooting down not one but 50 to 100 mosquitos a second. The system is 'so precise that it can specify the species, and even the gender, of the mosquito being targeted.' Currently, for the sake of efficiency, it leaves the males alone because only females are bloodsuckers. Best of all the system could cost as little as $50. Maybe that's too expensive for use in preventing malaria in Africa but I'd buy one in a second!" We ran a story about this last year. It looks like the company has added a bit more polish, and burning mosquito footage to their marketing.
Databases

First MySQL 5.5 Beta Released 95

joabj writes "While MySQL is the subject of much high-profile wrangling between the EU and Oracle (and the MySQL creator himself), the MySQL developers have been quietly moving the widely-used database software forward. The new beta version of MySQL, the first publicly available, features such improvements as near-asynchronous replication and more options for partitioning. A new release model has been enacted as well, bequeathing this version the title of 'MySQL Server 5.5.0-m2.' Downloads here."
Databases

Widenius Warns Against MySQL Falling Into Oracle's Hands 278

jamie sends in a blog post from MySQL co-founder Monty Widenius calling for help to "save MySQL from Oracle's clutches." While the US DoJ approved Oracle's purchase of Sun back in August, the European Commission has been less forthcoming. Widenius points out that Oracle has been using their customers to put pressure on the EC, and he questions Oracle's commitment to MySQL, saying their vague promises aren't good enough. He writes: "Oracle has NOT promised (as far as I know and certainly not in a legally binding manner): To keep (all of) MySQL under an open source license; Not to add closed source parts, modules or required tools; To not raise MySQL license or MySQL support prices; To release new MySQL versions in a regular and timely manner; To continue with dual licensing and always provide affordable commercial licenses to MySQL to those who needs them (to storage vendors and application vendors) or provide MySQL under a more permissive license; To develop MySQL as an Open Source project; To actively work with the community; Apply submitted patches in a timely manner; To not discriminate patches that make MySQL compete more with Oracle's other products; To ensure that MySQL is improved also in manners that make it compete even more with Oracle's main offering."
Open Source

Linux Kernel 2.6.32 Released 195

diegocg writes "Linus Torvalds has officially released the version 2.6.32 of the Linux kernel. New features include virtualization memory de-duplication, a rewrite of the writeback code faster and more scalable, many important Btrfs improvements and speedups, ATI R600/R700 3D and KMS support and other graphic improvements, a CFQ low latency mode, tracing improvements including a 'perf timechart' tool that tries to be a better bootchart, soft limits in the memory controller, support for the S+Core architecture, support for Intel Moorestown and its new firmware interface, run-time power management support, and many other improvements and new drivers. See the full changelog for more details."
Power

Open Access To Exercise Data? 188

identity0 writes "A recent Slashdot discussion about heart-rate monitors in schools got me thinking about getting one for my own exercise. It turns out that the available models have a wide range of features: calorie rate, pedometers, GPS, PC connectivity, etc. Being a geek, I want one that will let me look at my exercise data, and I'm curious what experiences Slashdotters have had with them. Some download data to a proprietary application — are open source alternatives available or is the data format easily readable? Others upload data to an online app — can the data be pulled off the site or is it forever trapped on their servers? While I'm not an open source zealot or a paranoid about my data being shared, I would like to know that I can access my data in the future. Whatever method you guys use to monitor your exercise, I'd love to hear about it."
Music

Licensing Issues Shut Down Pandora Outside US 248

randalotto writes "I'm in France for the summer and have been listening to Pandora at work. I tried logging on tonight and was greeted with a surprising message: 'We are deeply, deeply sorry to say that due to licensing constraints, we can no longer allow access to Pandora for listeners located outside of the US. We will continue to work diligently to realize the vision of a truly global Pandora, but for the time being we are required to restrict its use. We are very sad to have to do this, but there is no other alternative. ... The pace of global licensing is hard to predict, but we have the ultimate goal of being able to offer our service everywhere.' I'm not sure what the deal is or what licensing requirements suddenly changed, but Pandora in France is no more..." Note: the above link redirects to the main site, for those inside the US.
Government

Pirate Party Wins At Least One European Parliament Seat 674

reeeh2000 writes "According to TorrentFreak, with half of polling stations now closed in Sweden, the Pirate Party has at least one guaranteed seat in the EU Parliament. Currently, the party is sitting with 7% of the vote. Depending on how the remaining districts voted, the Pirate Party could win another seat, for a total of two." Reader lordholm adds a link to an article about exit polls in Sweden (link in Swedish) indicating that the Pirate Party will score two seats, writing "According to the polls, the pirate party is the largest party in the 18-30 year age category of voters. The final counting of votes (including around a million postal votes) will not be done until later next week."
Databases

Has MySQL Forked Beyond Repair? 334

snydeq writes "Fatal Exception's Neil McAllister questions the effect recent developments in the MySQL community will have on MySQL's future in the wake of Oracle's acquisition of Sun. Even before Oracle announced its buyout, there were signs of strain within the MySQL community, with key MySQL employees exiting and forks of the MySQL codebase arising, including Widenius' MariaDB. Now Widenius' Oracle-less Open Database Alliance adds further doubt as to which branch of MySQL will be considered 'official' going forward. 'Forks are a fact of life in the open source community, and arguably an entirely healthy one,' McAllister writes. 'Oracle just better hope it doesn't end up on the wrong side of the fork.' To do so, he suggests Oracle will have to regain the the trust and support of the MySQL community — in other words, 'stop acting like Oracle.'"
Power

US Becomes Top Wind Producer; Solar Next 388

SpuriousLogic sends along a SciAm piece that begins, "The United States overtook Germany as the biggest producer of wind power last year, new figures showed, and will likely take the lead in solar power this year, analysts said on Monday. Even before an expected 'Obama bounce' from a new President who has vowed to boost clean energy, US wind power capacity surged 50 percent last year to 25 gigwatts — enough to power more than five million homes."
Databases

Is MySQL's Community Eating the Company? 223

mjasay writes "Craigslist's Jeremy Zawodny reviews the progress of MySQL as a project, and discovers that through third-party forks and enhancements like Drizzle and OurDelta 'you can get a "better" MySQL than the one Sun/MySQL gives you today. For free.' Is this a good thing? On one hand it demonstrates the strong community around MySQL, but on the other, it could make it harder for Sun to fund core development on MySQL by diverting potential revenue from the core database project. Is this the fate of successful open-source companies? To become so successful as a community that they can't eke out a return as a company? If so, could anyone blame MySQL/Sun for creating its own proprietary fork in order to afford further core development?"
Space

1.4 Billion Pixel Camera To Watch For Asteroids 138

SpaceSlug writes "The world's largest digital camera is to be used to keep an eye out for asteroids heading towards Earth. The Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) has been built by researchers at MIT's Lincoln Lab. At its heart is a 1.4 billion pixel (or 1400 megapixel) camera that will scan the night sky looking for rogue near-Earth objects from atop Mount Haleakala in Maui Island, Hawaii. The system uses something called an orthogonal transfer CCD to remove atmospheric blur from images."
The Courts

RIAA Says "Wanna Fight? It'll Cost You!" 367

jeiler writes "Ars has the details on an RIAA strategy to double the cost of settling copyright infringement suits for students who try to quash the group's subpoenas in court. In a nutshell: settle early, pay $3,000; try to quash the subpoena and the settlement cost rises to $8,000."
The Courts

Graphics Advances Make Identifying Real Images Difficult 531

destinyland writes "The FBI's geeks admitted they were nervous over computer-generated images at a recent forensics conference. In court they're now arguing that a jury 'can tell' if an image is real or computer-generated — which marks the current boundary between legal and illegal. But reporter Debbie Nathan argues that that distinction is getting fuzzy, and that geeks will inevitably make it obsolete." Note: some of the linked (computer-generated) images may be disturbing.

Slashdot Top Deals

Forty two.

Working...