skysight-inc/HackerNews huggingface dataset:
My father is a car mechanic and once said nothing more powerful.than having the right tool for the job.

and he also said that your tools protect you.. the day you get a flat tire is exactly the day you put your tools out of the car...
> What deployed, modern systems use tuple spaces and are substantively different from a message queue?

None that I know of, but that's because no one uses generative communication nowadays :)

> Message queues have lots of different properties but the defining one, as in tuple spaces, is that there's an intermediary between 2 servers.

That's a very loose definition that could classify a lot of things as message queues. Generative communication says nothing about how the semantics are implemented; they may use an intermediary, or they may not. The early version of C-Linda did not use intermediaries, and was intended for in-process communication. Of course, a practical, distributed implementation of generative communication uses intermediaries. But then again, depending on the implementation, it may be distributed across multiple intermediaries.

I would say a message queue would necessarily have monotonicity (the name surely implies it!), which generative communication does not have.

> The sender and receiver don't have to be up at the same time.

In academic parlance this is called time decoupling, and it is an awesome property. ZeroRPC has this as well thanks to 0mq.

I don't really know anything about RabbitMQ to comment. I think I've heard that some engineers at dotCloud tried it out for our distributed communication needs, and it just couldn't scale to our load. But that would've been a while ago, and it has probably improved substantially since.
The fork was over trademark policy, not any technical matter. So no, it was not possible to prevent it. To avoid trademark restrictions, it was necessary to change the name of the project.

Anyway, there's only one Linux kernel implementation and I am not aware of anyone trying to do the same (except the dubious attempt to get DBus into kernel).

Finally, the ultimate goal of the whole project is to make messaging integral part of the Internet stack. That means standardising the protocols in IETF. And having at least 3 independent implementations makes it almost suitable for fast-tracking.
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I think "grudge" might be a combination of "grunt" and "drudge", aided by the fact that "grudge" is a real word with a different meaning. I noticed it too.
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It's not, if you look at the github page they make no such claims and actually say it's a small tool. whomever made this post is the one saying it's an alternative.
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Thank you. I will keep this in mind as I learn more about development.
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That clarifies that it's not a good idea, actually. A secure exchange would involve the server issuing a challenge, and the client producing a response, and not sending the key at all.
I applied to Waterloo in Canada knowing I wouldn't get in but figured it couldn't hurt.

As such when I got the rejection letter it didn't ruin my day at all, I really wasn't surprised. What did surprise me was the way it was phrased. It was a while ago so I don't remember verbatim, but it was something like this:

you are not of high enough caliber to be admitted into Waterloo

the word caliber was definitely used. What a cold, cold way to reject someone. I can only imagine having gotten that letter thinking I might have a chance of getting in. Would have been devastating.

Talk about not sugar coating anything :)
In case anyone else had trouble:

University of Colorado at Boulder: pg. 19

Yale: pg. 26

Colorado School of Mines: pg. 14

I must agree the Colorado School of Mines struck me as warm as well, from the get-go, before I read your comment.
Doing the quick math from what I remember HE's pricing to be, it is cheaper per watt... at my peak I had a full rack and 4.2Kw and only actually using half a rack. It just feels wrong to have to get 3 racks at HE and basically just be 4 servers per rack.

HE just seems at weird economies of scale. Pretty much no cooling, 70-80% of the warehouse empty, and $1/Mbit (they lower now?). If Fremont 2 gets more populated, will it inherit the same power issues? Part of me doesn't want to know.

I've heard good things about SVTIX though... haven't toured or had anything in there, but it seems to have a good rep.
Aren't imports ugly, or is it just me?

// js

var Bridge = require('bridge-js')

// python

from BridgePython.bridge import Bridge

// ruby

require 'bridge-ruby'

---

First of all you don't really need language name in the name of each of the bindings. It's kind of obvious that i'm using ruby or python at the moment, isn't it? Python version looks especially ugly it should have been much simpler:

import bridge
For anyone thinking of checking this out, try a sensory deprivation tank --

http://en.wikipedia.org/wiki/Isolation_tank

Amazing experience. Similar to how OP describes.
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The "evidence" here is that children "said words" and "did things" that made it seem like they were "reincarnated". Also there are some anecdotal cases of injuries other people had turing into birth defects / birth marks for other people...

Can someone please tell me what the science is here? Because my brain is melting reading this "research".
huh. I had a bunch of stuff in heraklesdata in sacramento. They quoted 150% of the 20a 120v circuit price for 30a 208v. I told the guy in the rack next to me (who ended up doing better than I did) and he wanted me to quit explaining power to the salesguys; this guy's theory is that one of the bizdev folks didn't know how to calculate power from amps and volts.

It's pretty funny; here in santa clara, people charge about twice (per amp) for 208v as 120v. thus, I end up just getting a whole bunch of 20a 120v circuits. It's silly, but eh, watts are what I actually want.

(208v is slightly more efficient; but an amp of 208v is, well, 208 watts, and two amps of 120v is 240 watts... 208v is not /that/ much more efficient.)
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Google "HFT frontrunning". The issue is that HFT algorithms can use their superior speed and the ability to cancel orders to essentially figure out what institutional buyers are bidding, and then front run the market to buy up shares in front of them. This would be prevented in my system by the black box auction and trading on an interval.
Sounds great, if your application state and user data doesn't go down with your app - keeping a DB slave out of every possible point of failure, somewhere far away in 'the cloud' means you have non-zero costs there.
> Are you kidding?

Nope.

> The tax-reporting requirements alone would be a benefit.

But is it a significant benefit?

Non-profits have to do significant reporting as well even though their tax rate is 0%. They also have all of the reporting for being an employer.

One interesting question is whether a non-profit is at a disadvantage because it doesn't pay taxes. For example, GE pays negative taxes at times. (Their tax accounting is actually a profit center.) I don't know if a non-profit can is eligible.

I'll bet that Lockheed spends more money on compliance accounting, which a non-profit defense contractor will have to do, than it does on tax accounting.
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I agree that singlehoming to a good tier-2 provider is much better than being singlehomed to a tier-1 of any quality; It's not so much the support I fear as the... as you said, depeering.

(of course, if you are looking for and willing to pay for serious bandwidth, you want to look for three or more upstreams. And in that case, having 3 tier 1 providers is better than having 3 tier 2 providers, as you are less likely to get route overlap, and tier 1 providers, all other things being equal, usually have better latency.)
"Between linked in, google, your company's about page, github and twitter accounts, you can already figure this out in ten minutes flat"

I don't think that's true at all. Some of the best engineers I've worked with have had very small online footprints (they're too busy building awesome things at their company to spend much time on Twitter etc). Now that I'm responsible for hiring, I consider knowledge of that kind of person to be incredibly important.
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I guess that is because it is in their interest to maintain the status quo. They probably don't believe HFT is evil or is the lesser evil.
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Surprise, Surprise... did you really not see this coming? Don't rely on 3rd party APIs!
Interesting, I don't think I got any rejection letters when I was job searching after college a few years ago. If I didn't get the interview I didn't receive any response at all. Now, the search didn't go too long, so maybe it was just too small of a sample to judge anything by. I certainly didn't expect to get any letters though.
The cloud is definitely good for being able to spin stuff up and down, but most stuff I've worked on is active-active with load sharing (and geographic proximity), plus at least a plan to spin up a new site (for which cloud would be awesome) once something goes down. It depends on how easily you can replicate the database -- if you can do true online replication across the Internet or a WAN between two remote sites, it is probably worth it in a lot of cases to go active-active. (I'm looking at doing SF + NoVA this time, and then probably EU -- we need Amazon Direct Connect nearby as well as good general Internet connectivity and reasonable colo. In DC that pretty much motivates toward Equinix DC1-6 or DC10. In the Bay Area, transport from SV1 is cheap enough)
> To speak candidly, I always found it irritating when Atheists and Secular "thinkers" would attack me for being religious and a scientist at the same time, as if my religion must somehow stunf my intellectual capability.

I would think so. How can you say, "I'm a scientist, I'll construct experiments and observe results to understand reality," and then go believe that there's a dude in the universe that's omnipotent and omnipresent without a shred of observable evidence?

> Science is difficult, confusing and complicated.

Science is cherry pie compared to trying to appease some mystical, invisible, unobserable, unknowable, all-powerful, imaginary god.
It is great for DR if it can support your IO load, considering the cloud sucks for IO. :)

One project moved from AWS to a managed hosting provider with gear built to our specs mostly due to IO issues... continued to grow and then went back to AWS looking to do an easy DR process. Had some issues just with EC2 being able to keep up with replication at that point.

The one thing I'd like to try with AWS though is their Direct Connect service. Basically colo in a facility near them and get a cross connect to EC2 (think it focuses on VPC). http://aws.amazon.com/directconnect/

IO loads on real hardware, EC2 for all the other stuff.
This is a nice thought, but I don't think it's realistic. Most of Apple's value comes from refining the work of others. They didn't invent the computer, the music player, or the phone, they just made great versions of each of these things. I'd argue that Apple couldn't exist at all if they paid everyone who's work influenced them. They'd have to give away everything.

I'm being easy on Apple by talking about hardware items, I know. Apple's worst sins are when they rip off software. And it's frustrating how sometimes they'll buy it (Coverflow) and sometimes they won't (Watson). The way they go about it feels mean. But it just shows how competitive they are. Ruthless even. They'd rather play dirty and win than lose with honor. It's hard to stay mad at them though because they do it all with such good taste.
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> To speak candidly, I always found it irritating when Atheists and Secular "thinkers" would attack me for being religious and a scientist at the same time, as if my religion must somehow stunf my intellectual capability.

FWIW, Knuth (yes, that one) is fairly religious. Anyone want to claim that he's stunted? Be sure to include supporting evidence.
So, Flotype http://www.flotype.com/ (from NowJS) is now Bridge? Why?
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10 terabytes of fanfic? I thought that you could fit the Library of Congress in less. 10TB is 20M novels of 100K words, unzipped.
I was half thinking of setting up colo in Hawaii specifically to cause people to have to make work-covered travel plans to there to "fix things". The official justification would be to be under US law and have lower latency access to Asia (although I think Seattle to North Asia is about the same as HNL to North Asia, and certainly cheaper/better bandwidth).

The problem is power is even more expensive there than in SF.
Not necessarily. You're assuming the only difference between the women and the men is relative numbers. Let's say 15 women are on a dating website and 30 men. Taken in and of itself, this sounds great for women.

But the distribution of objectives matter. Let's say 13 of the women are looking long-term committed relationships and 2 are looking for something casual. This is a gross oversimplification but bear with me. If 25 men are looking for something more casual and 5 are in it for something more long-term, all of the sudden you have a system with 45 people where only 7 of them "have it easy" if you go by numbers - 2 of whom are women.

Now these aren't real figures but anecdotally I would say I'm in the right ballpark. At any rate, it sufficiently illustrates that "easiness" has nothing to do with relative size of the gender pools.
This post is being used as somewhat of a stalking horse for any number of other agendas and soapboxes, which I guess isn't surprising, so I'll join the fray.

1. There is a misconception about market makers and the nature of a spread. In particularly illiquid markets, market makers allow you to buy and sell immediately. This is a service. The spread pays for this service. The more liquid a market is the lower the spread (eg it is essentially if not actually zero on US Treasuries);

2. For those questioning our brightest and best being "wasted" on HFT, I see comparatively better value on all the bright minds being wasted on social networks;

3. Finance is a constant arms race. The flavour of the month is HFT. In 5-10 years it'll be something else where low-latency transactions are just taken for granted. This kind of market is a gold mine for innovators as the existing players need a certain amount of innovation just to stand still (relative to the other players). There is classic "mine the miners" opportunity here;

4. There is a lot of highly-leveraged trading that goes on, automated and otherwise, beyond the world of HFT. (I believe) Warren Buffett describes this as "picking up nickels in front of a bulldozer" [1]. In extreme market situations, market models go out the window and the highly leveraged are the first to go to the flames. Just ask Bear Stearns [2] with its 35:1 leveraged ratio.

5. Financial institutions have access to way more data and cheaper (typically free) transactions compared to the average investor. It's common practice to do things like whipsaw the market to hit stop loss orders and the like. Honestly, unless you're a bank in the short term it is an insider's game;

6. A lot of the problems with the lack of transparency, assymmetry of information between parties and bad behaviour (like flooding exchanges) comes down to a failure of regulation. The SEC is either toothless or has been subverted by political interests. Much of what happens in the US just doesn't happen in Australia (to the same degree at least). Just take all the fake documentation in the US housing bubble. How bank executives, loan originators and the like didn't go to jail for this is really astounding;

7. Banks and market funds have limited to no downside risk. If things go horribly pear-shaped the US Federal government will--and has--bail them out. This breeds an adverse appetite for risk. I subscribe to the view that the Federal Reserve, the World Bank and the IMF are in large part welfare for investment bankers; and

8. Banks and funds are too large. If something is "too big to fail" then it's too big and needs to be broken up.

That is all.

[1]: http://en.wikipedia.org/wiki/Long-Term_Capital_Management

[2]: http://en.wikipedia.org/wiki/Bear_Stearns
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the 'share at a specific duration' feature looks fantastic.
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...including "Kevin Rose - Taking your Site from One to One Million Users" among others
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I don't think it assumes a fixed amount of talent.

Perhaps a hypothetical analogy can help: Imagine that a tax of 0.000001% is applied to every stockmarket transaction, and the proceeds are given to the top 10 people who can best memorise the digits of PI.

Most people would say that this scheme necessarily makes society worse off.

Would you oppose this hypothetical scheme? If so, what is the significant difference between it and HFT?
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rake seo[post title]