skysight-inc/HackerNews huggingface dataset:
Wow, that was a perfect response. Couldn't have been classier. Kudos to the Twitter team for not only responding well but also for taking the edge off of Arrington's personal attack on Blaine
The easiest way will be to use Alexa Site Thumbnail from AWS http://tinyurl.com/57zbp2 , which charges $0.0002/thumbnail.
If you're going to serve Javascript over SSL, you need a full SSL setup including a valid certificate, etc. If you have that, you may as well just serve the login form itself over HTTPS, redirecting back to HTTP after logging the user in, and forget the Javascript altogether.
I'm working on a big piece of software with numerical, real-time, and GTK components. It needs 230 packages installed using MacPorts. I have a 20-line script, mostly "port install XXX" which takes care of it all with no worries. And it's really nice that I can just rm -r /opt and do it again if I mess it up.
I agree, and flawless execution contrasting the Mars landing and Twitter operation. You couldn't ask for a more appropriate response.
Try reading up on latent semantic analysis. It also uses vector calculus, but works a bit different IIRC. It can be used to identify words that are used in the same context and therefore should be the same. I'm not sure if it is directly applicable for recipes because of the concise language, but you might find interesting related articles.
BTW, more info on cuckoo hashing:

http://mybiasedcoin.blogspot.com/2007/06/cuckoo-hashing-theo...

http://mybiasedcoin.blogspot.com/2008/05/more-robust-cuckoo-...
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Just an update; I was wrong, though I did a lot of research ahead of time. It turns out that link (that I found under a stock price on Yahoo! Finance, and the landing page still offers the $11 plan) is Yahoo's existing service. They are indeed making it free.

Here is what Google returned today that it had not before:
http://ycorpblog.com/2008/05/28/real-time-stock-quotes-on-th...
I had a friend who graduated from college in Macedonia. Each class was an exam which you took whenever you were ready to and the exams were offered every semester. So to get the degree you needed to take all of the relevant exams.

Not sure if anywhere else in Europe does things this way.
That's an excellent idea, so naturally someone already has a product the implements it ;)

http://www.wigix.com/

I read about it a few weeks ago when they launched and thought it was a pretty neat idea, so I wish them the best of luck.
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Definitely getting tired of this martyrdom fantasy where people post an opinion followed by something along the lines of "Go ahead and mod me down for having the bravery and courage to speak out against the vile things of this world which you sheeple blindly accept!"

And, no, I'm not going to tack it to the end of my post because it's so annoying that it's immune to ironic mockery :(
Major Electrical Outtage at The Planet Data Center
Right now this link is all the communication we've been offered.
Why are you building, instead of downloading the binary?
i perused this in the library recently. it looked like it would make a nice freshman course, or material to help folks with a less formal education build up a nice base for their existing knowledge.

i don't think there is much in it to interest graduates of a decent CS program, though.
> Who stole the original thinkers of that era, and planted type-theoretical bureaucrats in their place?

Once a sufficiently advanced type-theory is in place, original thought can be automated and rigorously proven at compile-time. ;-)
I also wonder about the physics -> CS part. What about the quantum mechanical nature of the electromagnetic forces governing electronic components used to build computers, like transistors? That would really make this complete.
> I can't believe the spanish explorers missed the goody box way back then.

I always called them Goody Huts. :-)
Why FriendFeed Deserves a Billion Dollar Valuation
What is it with some people whining about the (supposed) "damage that Twitter has done to the community". Not really bright, IMHO. Nobody is being forced to use twitter and so far no one has apparently come up with an alternative that is viable enough for droves of people to switch. I don't want to play the uncritical Twitter advocate, but I like the concept, the service and this answer to TechCrunch in particular.
Yes. Fractions, dude.
> We currently use one database for writes with multiple slaves for read queries. As many know, replication of MySQL is no easy task, so we've brought in MySQL experts to help us with that immediately.

This really makes me wonder if they know what they're doing. MySQL replication really isn't that hard at all. They're hitting performance bottlenecks with only 3 servers and don't appear to be looking into sharding/partitioning to split up writes?
People here don't really like the word autodidactic. Try and keep it to a fifth grade level. Just a heads up.
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Correlation is causality if the best science has mechanisms that explain the causal relationship.

Here, correlation is causality.
Your suggested approach is flawed simply because it would require all the little companies to cooperate together on some sort of system.
Whichever social network site wins is going to conquer the online auction market as well. Think about it. Once your reputation and social capital can be used to help assess your credibility as either a seller or buyer, then a good deal more trust can exist for allowing transactions to occur.
It's not like you have to remember them...
I just use a script that based on a site name/keyword I give it, generates a password for me. Then the browser remembers it.

Of course that means if anyone steals my laptop they have all my logins, but that's extremely unlikely.
1 to the -10 power? That would be less

Well, no... 1^(-10) is still just 1. :-)
It looks to me like he is saying they are planning on ditching MySQL altogether. That is probably why they don't want to invest in redoing/expanding the MySQL replication.
Dealing With Capacity Overload and "Laying Off" Features
You can get an SNP test for restless legs syndrome if you want to find out if you have a related genetic mutation

Also, and this is definitely not medical advice, anti-depressants might work but they also sometimes cause restless legs syndrome. Restless legs syndrome pills have gotta be under international copyright, but if you're personally comfortable going on happy pills with the knowledge that you need to carefully withdraw from them over 30 days that could also fix all of your sleep issues much cheaper than restless legs pills.
Twitter isn't that complicated of a website, it shouldn't take them more than a few days to migrate only the high load sections (tweets) to a sharded architecture. All they need is money for more database servers (and they have at least $15 million) and know-how. And yet they're planning to ditch MySQL in favour of... text files? And they can't even make a small MySQL cluster highly available?
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http://www.informationweek.com/news/security/showArticle.jht...
http://www.cnn.com/2008/US/03/25/stolen.laptop/
http://www.marketwatch.com/news/story/ing-laptop-personal-da...

&c.
Sadly, I looked into the "best filesystem for an external drive" recently and arrived at NTFS. It's a no-brainer for Windows. ntfs-3g is already installed and working on any recent Ubuntu, and is trivial to install on OS X.

Reliability? Ask me in a year.
You mean like open source or the free market?
The thing is the online auction market has to have a monopoly. Why would a seller want to sell his item on a site that won't give him the most bidders?

So honestly I don't think anyone can take eBay down. Even if Craigslist/Google/Microsoft comes out with a free version.

So unless you want to get government involved I wouldn't bother
A hash is a one way thing so you can't reverse it. However, if they have that much access it'd be trivial to just change your script to dump the username/password combo into a plain text file whenever the login succeeds.
"A few people objected that it won’t fly, because it’s going to be a commercial product. I don’t think that’s the case. The Rails community adopts Macs, TextMate, and other commercial software without blinking"

The Ruby community should be more serious about FOSS, I never liked those TextMate demos, why not use emacs, netbeans or notepad++ !!! ... well here comes the day when someone is using the TextMate usage and demos to show how the Rubyiest are not serious about FOSS ...

I mean the Ruby community acuses Java of many faults, but now Java moved from closed sourced to being open sourced

Is the Ruby community willing to take Ruby in the opposite direction, are they willing to move backward!
The canned argument is: No known security problem does not mean no security problem.
What happened to that Facebook app that was launched a while ago? I thought it sounded interesting (trade with your friends or something like that).
Ask HN: Twitter-like dating site. LAMP. As an idea? Scale?
While you are at it: All that javascript hashing still leaks information. Why not implement some zeroknowledge protocoll with AJAX?

(You need to send information back and forth because those protocolls are interactive.)
Good to see the Twitter team reply to that disgusting Blaine-bashing that TechCrunch had engaged in:
The folks at TechCrunch singled out a former employee of Twitter by name in their questions but Twitter is a team—we share responsibility for our victories as well as our mistakes.
You should use individual salting for each password to make this at least a bit more difficult.
In practical terms, just use HTTPS with rooted certs. It's not expensive for basic usage. And, if you're just doing a for-fun project you can always use self-signed certs.

If you want to go deeper down the rabbit hole check out SRP: http://srp.stanford.edu/

In terms of dealing more securely with data on your server, check out the book, Translucent Databases ( http://www.amazon.com/Translucent-Databases-Peter-Wayner/dp/... )
"It's not like you have to remember them... I just use a script that based on a site name/keyword I give it, generates a password for me. Then the browser remembers it.

Of course that means if anyone steals my laptop they have all my logins."

Would have gone down better, I guess.
Here's an interesting proposed architecture that involves ditching MySQL:
http://randomfoo.net/blog/id/4182
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Well... I never leave the house and live in a guarded fort.
Speaking. I'm shocked how much credibility you get when you speak. A year ago I was the least known (CrowdVine hadn't even launched) speaker on an 8:00am Web 2.0 Expo panel and for six months I had people contacting me about my company. This year, I organized and ran the unconference track at the same conference and didn't have a single bit of interest.

I'm probably not the best self-promotional blogger out there, but I do find that it is a good value in terms of a reference check.
I wish I had a billion dollars. I would spend them all to buy FriendFeed. Yep.
"Our new architecture will move our reliance to a simple, elegant filesystem-based approach, rather than a collection of database."

Finally! Using a database for Twitter was a huge mistake. Anyone who's developing an IM should not use a database as a general message storage. And especially not for a system that's multicasting at such a high rate.
Arrington on tone, see "update":

http://www.techcrunch.com/2008/05/31/hey-twitter-i-have-a-fe...
How is it that HN accepted this, the link is an exact duplicate of http://news.ycombinator.com/item?id=205709 ?

I thought there was a check for dup links...
No one in their right mind ever would. Does IRC use a database for messages? Yahoo/msn/aol/icq? no.
At least we know the number of "stories about Twitter scaling" scales. There has been a big increase in the volume in these stories, but they just keep coming.
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Title and first sentence are probably grabbed directly (probably cURL), it's trivial to snag a <title> tag and the first <p> tag. They definitely cache them somewhere, since pulling them every time would do terrible things to load time and is unreliable.
> "Half-life" by biological elimination is not precisely exponential as with radioactive decay, and may trend closer to a linear process -- as in, your liver can eliminate X units per hour, not X% of however much you've had.

Damn. I was hoping to calculate the optimal hour for a caffeine "booster" after the initial morning fix.
You've got to remember that the marginal utility of your first billion dollars is a lot higher than the rest...
Little bit a Twitter but idea is nice :) I'm also separated and 35, but I don't think you can start a startup only in 21 :) Keep running.
Markup Generator is a simple tool created for xhtml/css coders
cURL can't grab the thumbnails - you need to run the HTML through a rendering engine to do that.
"People here don't really like the word autodidactic". What fact do you have to back your statement?

When you are dealing with a community you should be careful when saying "People here".

"Try and keep it to a fifth grade level". Now why would you insult someone intelligence when they reach out to others for their opinions, and help.
He means someone set up a a JS library over HTTPS on a server for _others_ to use. Like you would grab a JS library off of Google's HTTPS servers and use that on your non-SSL pages.
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You raise a very interesting point. I think that in the Ruby and Rails communities there are plenty of FOSS enthusiasts. Vim, Emacs, RadRails and Netbeans are all very common options. On the operating system side of things, Linux is a very common choice as well, despite the fact that many love Mac OS X.

When I made that remark I was mostly thinking about free as in beer vs. commercial. I don't think that companies and developers who adopt Rails as their tool of choice, would have trouble reaching for their wallet, for a product that significantly enhances their development experience. My remark was a way of saying that the Rails community has a track record of being able to pay for quality, be it an operating system, an editor, or hosting, and therefore won't be adverse to a product that has a price tag.

That said, I think that the communities have a good relationship with the concept of free as in speech. Many believe in the idea and actively participate in open source projects. Every other Ruby implementation is open source, Rails is open source, and almost all the plugins, gems and libraries out there are free software.

Parts of MagLev will be open source too, and this will probably benefit other implementations as well, particularly the conceptually not too distant Rubinius. I think that in the Ruby/Rails community we appreciate FOSS, but we are also pragmatic and accept the fact that some companies may opt for a different business model. The two paradigms can coexist, offering users both FOSS and commercial closed source options.

In this specific case, many Rubyists have been "suffering" due to MRI's slowness, and if the choice comes down to choosing between having a very slow implementation that is free, and a closed source one that's 30 times faster, most companies will accept the closed source compromise, especially when it comes from a company with a reputation for rock solid and mission critical VMs and architecture. And I don't feel that they can be blamed for it.
Yes, just like a horoscope!
Some people do better without caffeine. There is also a condition called Mononucleosis that can cause fatigue, as well as other conditions. Lots of things from vitamin deficiencies to cancer can cause fatigue.

If you look up the pill on the web you can get information but they tend to list any side effect ever seen. Check out the list of problems with Tylenol and you'll see the kind of CYA exaggeration I'm talking about.

I've never heard of any treatment for restless leg syndrome beside the medicine.
The biggest issue is how mainstream they will be able to become. Many of my friends don't even know what the RSS is, not to mention aggregating them. ;-)

But I agree about the Search feature being the most useful part. I have found that search on twitter and FF conversations is pretty useful already and I use it often when basic googling is not enough.
There was a recent "security issue" reported to us whereby an attacker who could specify a printf format string could cause a buffer overflow. We don't consider this to be a security issue since if you're allowing an attacker to specify a printf format string, you've got much bigger problems already -- this "issue" doesn't make things any worse.
Also followed by a depressant effect which can last for days. So overall, alcohol only "works" in the short term, after which it's all downhill.
Hi, I saw this post you made discussing a dissertation that had online dating stats. Could you by chance email me some information about how I could find this dissertation?

http://news.ycombinator.com/item?id=176699
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DAA isn't intended to solve the same problem as SSL. SSL also isn't always worth the cost of the certificate, depending on the information being guarded; nor is it absolutely secure [http://eprint.iacr.org/2004/111.pdf, May 2004].

I don't understand the all-or-none attitude that appears to be prevalent in the security industry. For all the discussion spent on search spaces, and maximizing attack effort, there doesn't seem to be much acceptance for "good enough" security. There appears to be this attitude that -- to use wireless security as one example -- "WEP is broken, so you might as well just run a totally open network."

I see that when you say that anybody that can sniff traffic for stupid JavaScript hashes can also necessarily inject traffic to alter the negotiation between the host and the client. While in theory that's correct, in practice it ignores the difference in the number of people that know enough to execute either attack.

It makes sense to say, "If you're going to do password encryption, you might as well do it right", but I don't think it follows that even a stupid JavaScript MD5 hashing scheme is as insecure as plain-text password transmission.
| ...only means that he shouldn't be designing security systems right now.

That is almost letter-for-letter what Thomas said.
| For most users - a dozen, tops.

"Most" users have trouble remembering even one password. Rightly or wrongly, it's hard to get the average computer user interested in security.
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+1 for a new approach to online dating... no one else has got online dating to work for heterosexual dating. Remember that you need to target women. There are a lot more men using online dating than women. [1] Online dating right now works incredibly well for homosexual "dating", particularly casual sex for men who like men, but Craigslist has the network effect already.

Honestly I'm really curious why no one has cracked it on facebook yet. There is a lot of potential there.
This looks a lot like Haml: http://haml.hamptoncatlin.com/

Haml also happens to have a tutorial, documentation, and downloadable source code.

If you want to try Haml online, check http://lab.hamptoncatlin.com/
I am a self-taught programmer, and the course filled a lot of holes and gave me a much better understanding of how the different levels work together. For me it was an eye-opener on par with SICP.
"Dear Valued Customers:

This evening at 4:55 in our H1 data center, electrical gear shorted, creating an explosion and fire that knocked down three walls surrounding our electrical equipment room Thankfully, no one was injured. In addition, no customer servers were damaged or lost.

We have just been allowed into the building to physically inspect the damage. Early indications are that the short was in a high-volume wire conduit. We were not allowed to activate our backup generator plan based on instructions from the fire department.

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I am not happy.
You are never too old to start a startup!
Yes. Lot's of potential in Facebook. Could start with a simple dating app and work up from there.
There is only ever the present moment. Time does not exist. :)
Can't be helped really as they can't initiate their backup systems because of the fire departments orders.

I see webfaction is down as a result :/
I disagree. It's not about co-operating to build a monolithic system, it's about each niche-player dominating that niche. Etsy is a good example: I've sold several items (stained glass) there, but trying to do the same on eBay was a waste of time -- and the listing fee. I still use eBay (to buy) but more diversity and competition in the marketplace would be most welcome.
On the contrary, I'd say that they must really know what they're doing. How many sites with a million daily active users do you know that run on only 3 db servers?

The twitter team deserves a lot of respect for managing to stretch their hardware so far.
sigh the correct solution for this problem is SRP (see RFC 2945) which provides a secure transfer of password data and can be (and has been) implemented in javascript.

However while that solution will prevent packet sniffing, if you want to prevent phishing attacks you still need to use SSL