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Ask Slashdot: Choosing a Data Warehouse Server System?

leuk_he Re:But what do you need? (147 comments)

Exactly

Big data is a different thing from datawarehousing.

In a big data scenario you have lots of data, that you process with a highly scalable solution.

In a databasehouse you collect data from different sources and transform them in several steps to a datamodel you can create reports from it in a simple way. .

And there is the other option you just have to process lots of records from a simular source (measuring data), where you carefully monitor and tune the processing of that data.

The question does not even make a difference between this. Most of the above options are not a single person job if you want it done in a reasonable timeframe(that is before business needs catch up).

The hardware depends on the size of the data. hardware sellers are happy to sell their high-end servers with a scaleable SAN, for a price you can buy a mid class car, or even a price that is not listed.But depending on your needs a simple dell server with a good backup facility under 1000$ might suffice.

no way to tell

PS, "services" might be a way to convince you that that the solution needs to run in the cloud (to complete the buzzworld cicle) or a way to sell consultancy hours.

about three weeks ago
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To Really Cut Emissions, We Need Electric Buses, Not Just Electric Cars

leuk_he Re:And low-emission transport trucks, too (491 comments)

All you need are wordlwide emision regulations. Better qulaity fuel or eniges better tued to emisions might make a lot of difference. There currently is economic benefit to tune a ship for better emissions. Even putting it in a harbour for 2 weeks to tune the engine (don't know if technical possible) will set the owner back a lot of money. He will not do it just for emision.

You will not need large innovations. Clean emisions is already understood, and used in power plants. YOu just need motivations.

by the way, Carbon (CO2) exhaust: some idusties, heating, and electircy generation might win more.

about 3 months ago
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DMCA Claim Over GPL Non-Compliance Shuts Off Minecraft Plug-Ins

leuk_he Re: What the heck? (354 comments)

Almost there. Wolfse made part of the GPL code. However the Bukkit project is not gpl compliant because the entire code contains decompiled java server code. What wolfse thinks is since the project is not GPL compliant, (part is gpl, part is just working) he can put in a dcma. However his code is GPL, so he cannot withdraw that license.

Mojang is the copyright holder of the server code, he surely would be able to put in a take down request.

This is like linus putting a takedown request at redhat because their kernel is linked to non-gpl driver blobs to force nvidea to open source their drivers.

The problem is the risk: fighting this DCMA takedown requires expensive lawyer, and there is a small risk that wolfse has some reasoning that a court will agree with. In that case the costs will be so high, that the "in their free time"projects would make them bankrupt or something like that.

about 3 months ago
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E-Books On a $20 Cell Phone

leuk_he sponsered phones. (116 comments)

These phones are sim-locked and sponsered by the provider. So the 20$ mark means not much, the real price is 10-40 dollars higher.

Using a phone for reading zaps through your battery life (1-3 hours) to light the screen.

But the discusssion stays, since for $99 you can get a reasonable e-paper reader. How to get content for this.... i leave to your imagination.

about 3 months ago
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Firefox 32 Arrives With New HTTP Cache, Public Key Pinning Support

leuk_he pinning gui fail. (220 comments)

Yup, from secuty point: something is wrong with the pinning CA, drop a fatal error message and you are ready.

But: No option to handle the connection as a unsecured connection. If you simply want to watch the intercepted information about funny cat video, the fact that there is a man in the middle attack is not interresting.
And: Something is alarml wrong error message. Nope, just that the connection might be intercepted, or not be from the original site. Nothing wrong with the PC of the user, but nothing he can do about it. Give him options!

about 3 months ago
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Facebook Tests "Satire" Tag To Avoid Confusion On News Feed

leuk_he Re:Says who? (131 comments)

And failed to do so for De Speld (dutch kind of union)

about 3 months ago
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Ross Ulbricht's Lawyer Requests Suppression Of Silk Road Evidence

leuk_he Re:Normal lawyer stuff (54 comments)

No no, the gathering of the information becomes legal. Using it in a "normal" case is an entire different story.(according to the lawyer) You cannot make the gathering of everything digital that is happening for security, and then using this information in a "normal" drugs case. If he tried to do a terrorist action, then it would disappears in the drawer. However This is a normal criminal case, and in such a case the police has to follow certain procedures.

about 4 months ago
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Critroni Crypto Ransomware Seen Using Tor for Command and Control

leuk_he Re:Antivirus (122 comments)

All trojans/bots/ransomsware is designed to circumvent antivirus. It is a arms wars between viri and anti-virus. At the moment the viri are winning it :(.

And there is a nasty side effect: real legit tor usage will be detected as malware suspect by antivirus software. So if you have a "good"reason to use tor you might have to disable anti-virus

about 4 months ago
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Biohackers Are Engineering Yeast To Make THC

leuk_he Law. (159 comments)

The law is not equipped to forsee such advances in drugs. However if this is commercially possible, and this becomes popular, THC enabled yeast will be added to lists of forbidden substances. (just like "bath salts")

about 5 months ago
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Reproducing a Monet Painting With Aluminum Nanostructures

leuk_he Same size. (27 comments)

That is called a exact reproduction. ;)

about 5 months ago
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Are the Hard-to-Exploit Bugs In LZO Compression Algorithm Just Hype?

leuk_he Re:Safe Buffer? (65 comments)

Why still program in C? Simple: C is easy to glue to everything, just because it assumes not too much about the data structures. And because you have reinvent data validation ( safe buffers) for every interface again, there is a huge risk there.

The obvious solution is to use proven libraries for these problems (opensll, libzzo ;) . However if one of these libraries has a bug, (or is not obvious to use) the problem is in many programs at once.

about 4 months ago
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3D-Printed Material Can Carry 160,000 Times Its Own Weight

leuk_he some text evaported. (60 comments)

They made an utrastrong spongebob squarepants

about 5 months ago
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Study: Male Facial Development Evolved To Take Punches

leuk_he Re:Sexual selection by the opposite sex. (190 comments)

If you broke your jaw, you not only were KO, but because you could not chew your food effective, you might loose your life. Selection....

about 6 months ago
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Steve Ballmer In Talks To Buy Los Angeles Clippers

leuk_he Re:not gonna happen (76 comments)

Stripping? I might miss some details, but getting to sell it for 2.000.000.000$ is not bad. But the, I am european, and i do not understand this sport^h^h^h^h^hFrancise you are talking about.

about 6 months ago
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New Middleware Promises Dramatically Higher Speeds, Lower Power Draw For SSDs

leuk_he Re:"causes fragmented data (68 comments)

If data is fragmented over multiple blocks, It requires mulitple reads. But this kind of fragmentation is not as bad as HDD where you had a seek time of 7-8 ms. Matching the block size of the SDD to the block sie of the FS is an effective performance enhancement.

Modern SDD have read limits. Every 10.000 reads or so the data has to be refreshed. The firmware will do this silent.

about 6 months ago
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What qualifications should the 'driver' of a fully autonomous car need?

leuk_he Re:Autonomous Taxis (301 comments)

In some test by the TU delft the autonomous cars test are now foucsing on how the driver takes over from the car. The coming of autonomous cars will come fluent. First there will be advanced lane asist and takeover of tasks that are easy for computers. And of course the driving in a "train" with minimal space between cars. More and more functions will be added.

Fully autonomous will be a long way to go. e.g. to determine the last street where you want to go might be a very hard task. GPS navigations rarely guides you to the exact position, where to park, and the exact house is a complicated task.

about 6 months ago
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Researchers Find, Analyze Forged SSL Certs In the Wild

leuk_he Re:Interesting technique and results... (86 comments)

Should they flag them? No, flagging too much will cause the users to just ignore the messages. And for most facebook communication http traffic will be just as good as https traffic.

But it should note that the security is as good as http traffic, in other words, do not display a lock.

By the way, think about it, security devices. Security for you? Did you pay those devices? No, it is security for those who pay for the devices.

about 6 months ago
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The Upcoming Windows 8.1 Apocalypse

leuk_he Re:Lamepocalypse (293 comments)

Together with a bunch of XPcaplipse machine the next Sqlslammer work is waiting on the next unpached vlunebility to hit the internet after May 8.

And from the viewpoint of Slashdot the world as Slashdot knows it. will end without internetnet.

about 7 months ago
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Reason Suggests DoJ Closing Porn Stars' Bank Accounts

leuk_he In eu bank will not be allowed (548 comments)

To prevent such random risks to people earning money in the eu there will be laws to protect the common people.

http://ec.europa.eu/dgs/health...

However i think this is about personal accounts. If you want a bank account for a porn business you might have to shop arround.

about 7 months ago
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Ask Slashdot: How To Back Up Physical Data?

leuk_he Chicken or the egg. (245 comments)

What i have actually know of was the chicken or the egg problem. To get access to their bank account (after a robbery) people needed ID. But to get a new (emergency) ID, the town hall needed money to pay for that. Normally you would know someone to lent the money from, but this person did not have a very good reputation with paying people back.

I myself keep a (medium quality) copy of my drivers license in my car. If i ever get pulled over and forgot my paper i might get of with a warning if i can show the copy.

The value of friends and family is important in such cases.

about 7 months ago

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Samsung tablet allowd in Dutch appeal

leuk_he leuk_he writes  |  more than 2 years ago

In a dutch appeal samsung is allowed (dutch) to keep importing the galaxy tab. The model right are not enough for this. The current iPad deviates too much from the 2004 sketches, and there was prior art in other tables and a registion by bloomburg. Samsung is importing through the Netherlands, so this has implication for europe. Also judges in other european countries will probably look at this.

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