HNHacker News
TopNewBestAskShowJobs

DannoHung

4,805 karma · joined January 14, 2009

submissionscomments
DannoHung··on Overstock.com Has $10M in Gold and Silver Hidden Somewhere in Utah
Who is going to shop at an online junk retailer (and make no bones, that is what Overstock is) after the financial system collapses?
DannoHung··on Cancer survivors less likely to receive callbacks from potential employers
I kinda wish they'd skipped the hat thing, because the resume aspect is pretty important. Explaining a gap in your resume is a reasonable thing for people to do when applying for a job.
DannoHung··on Announcing Docker 1.9: Production-Ready Swarm and Multi-Host Networking
Pretty sure openshift v3 is built on top of kubernetes
DannoHung··on Carina – High-Performance, Instant-On Docker Containers
To put it as simply as possible: Triton does not have magic block storage. If you want to write anything that persists past a container's lifetime, it is tied to the machine instance the container was running on unless you manually move it around.

It's not any worse than you'd have if you were starting from scratch with your own hardware, but Bryan Cantrill is firmly against magic block storage. His suggestion is that you rewrite your persistence layer to know about SDC or "deal with it".

It's not necessarily that bad since a lot of containers don't need state, but my personal axe is that I work with databases almost exclusively.

DannoHung··on Carina – High-Performance, Instant-On Docker Containers
Your assessment is accurate, unfortunately Triton does not address the issue of data locality, which is a pretty big problem unless you're already building your storage backend to be Smart Data Center aware.

To that extent, I'm not sure that tossing out the idea of hosts is great yet.

DannoHung··on Good Practices for Writing Rust Libraries
I have to agree. Adding tons of whitespace is generally going to make things harder to read.

Personally, I'm very much into Ratliff (or banner style) indentation and using two spaces for your indent. I know that 4 is the standard for a lot of people, but my feeling is that this is generally the result of people using VeryLongVariableNamesThatGoOnForever and blocks that go on for a many lines.

The more concise code becomes and the shorter your blocks get, I have found that it becomes much more annoying to have to skip your eye further. This gets especially silly if you have anything with deep nesting.

Ratliff style just makes it so so easy to tell where a block terminates though. I have basically no idea why it isn't wildly popular.

Probably because editors don't support it.

DannoHung··on Researchers discovered the perfect password that’s easy to remember
I didn't say to use it by itself. I said that your OTP would be required first to even access it. And of course you could provide backoff. And then you'd also have to be answering a series of multiple choice questions all correctly.

I dunno, just a thought, but do you get what I'm saying about recognition vs recall? Why don't we have the computer test us about things we're good at if part of the test has to be something only our individual brain is capable of?

DannoHung··on Researchers discovered the perfect password that’s easy to remember
Maybe the problem is that we have it backwards. Maybe it shouldn't be something you remember and push to the authentication mechanism, but something that the authentication mechanism pushes to you.

Like, what if you pick the corpus of a novel that you've read as your master password. And the password manager uses that novel plus several other novels that you have selected (but didn't read/won't read?) to give you a series of multiple choice selections to determine if you know the right book. Just a few short passages. Preferably with proper nouns stripped out.

You have to select the passages from the correct book for all the multiple choices. That way rather than recall, the memory factor is recognition. Combine it with a non-memorable token which you have to present first in order to even see the recognition factor test and you might have something workable.

DannoHung··on Mimic – abusing Unicode to create tragedy
Maybe some sort of extortion scheme? Send an email to a small business person that isn't very technically savvy, say you have just erased all the search results for their business from Google, provide link, demand a Bitcoin to return the results.

Maybe a low hit rate, but if you could automate it, you could run the scam on a lot of places.

DannoHung··on Swarm vs. Fleet vs. Kubernetes vs. Mesos
The one thing I don't totally understand about the Kubernetes scaling issue is that you can ostensibly use Mesos as the scheduler for Kubernetes, which naively to me seems like it would allow Kubernetes to scale to the same size as Mesos, or is the DNS and Service stuff the part that doesn't scale as well?
DannoHung··on The problem with packaging in Python
You want Nix.

Everyone wants Nix.

But we're not allowed to have Nix.

Because the world sucks and people look at something that has a little bit of necessary complexity and think, "I don't like complexity! I'll build something simpler", and they build it, and it looks cool because it seems simple, but then you use it and it turns out it has implicit complexity.

DannoHung··on Cron in production is a double-edged sword
Is there any good open source distributed scheduler that blends both timer based tasks and event based tasks?

Chronos is the only one I'm aware of, but I don't believe it supports event based tasks.

DannoHung··on The Danger of E-Books
Does anyone know of a store front for fiction and non-computer non-fiction books that all are unencumbered by DRM?

I think Tor is releasing everything DRM free right now, but I'd like to see any stuff from other publishers that is also DRM free.

DannoHung··on How to know if where you live is “up and coming”: fried chicken vs. coffee shops
This analysis would be tremendously racist in America.
DannoHung··on Seeing stars again: Naval Academy reinstates celestial navigation
Yeah, well, I mean that is the standard DOD approach to everything.

But I don't know if that's the only solution if being economical ends up being important.

Spike strips are really good at stopping cars, especially if they're running around a track in a circle.

DannoHung··on Mattermost 1.0 released – open-source Slack alternative
Interesting that it will be a default feature of Gitlab.

That's a move that seems like it may push Gitlab ahead of GitHub in some ways (well, to me at least).

DannoHung··on Seeing stars again: Naval Academy reinstates celestial navigation
> A jammer has to keep the right side up and not hit anything, and anti-jammer has a much more complicated task of finding, reaching, and destroying a jammer.

Is this 100% true? I don't know much about RF jamming, but isn't it sufficient to fix on the strongest source of the RF signal you're interested in and guide a cheap penetrator at it?

DARPA's Exacto bullets are doing that with optical guidance. Would it be that much harder with radio guidance?

DannoHung··on Apple facing huge chip patent bill after losing case
I have one question: Do the professors teach this technique in classes?

I mean, that'd be funny, right? Teaching students something that you patented, waiting a few years for them to go into industry and apply what they learned, then suing them for it.

DannoHung··on Laser Razor suspended by Kickstarter
He does have a patent from the mid 90's (which is when I think IPL was created?) that seems to be pertinent: https://www.google.com/patents/US5320618

I dunno, this whole thing is weird. Generally I have to defer to people saying that the system isn't using enough energy to burn hairs, but unless the guy in question has had some sort of mental break or something, I don't get why he'd be involved with it if it was a straight fraud.

DannoHung··on Laser Razor suspended by Kickstarter
The thing that is weird about this case is that one of the principals, Morgan Gustavsson, is actually the dude who invented the real laser hair removal that is used in clinics and has been involved in dermatology since.

I don't know if he was actually involved in this project or not, but that was the one thing that made me think that this maybe wasn't 100% a scam?

Anyway, the implication they make in their pitch isn't that it's an open laser, but that it is a laser confined to a fiberoptic wire which leaks into the hair when pressed against it. Gustavsson has published some papers on this a few years ago in which he refers to the concept as a TRASER.

Of course, if this really is such a revolutionary advance, why go to Kickstarter to bring it to market? Why not traditional investors. Gotta be easier to get funding for a significant manufacturing outlay, right? Just to not have to sell a piece of the company? To justify that there is a market?

I personally don't have the background to make any judgments about this and I definitely don't understand the article he published, but I just thought it didn't completely fail the smell test.

DannoHung··on Should bike helmets be compulsory? Lessons from Seattle and Amsterdam
There are plenty of studies, the problem with them is that there are arguments made constantly that despite the efficacy of helmets in reducing the severity of head trauma, something about the helmets somehow makes them more dangerous.

I think my favorite stupid argument though is that it increases the size of the rider's head, which increases the likelihood of ground collision in an accident. As though it's so easy to stop yourself from falling as long as there aren't two inches of material strapped on your noggin.

The basic fact is that if you do have a head injury on a bike, a helmet is likely to reduce the severity of it. Everything else is an unquantifiable argument about human behavior.

DannoHung··on New analysis of the impact of tech buses in San Francisco
Did they do an analysis of the tech buses in comparison to actually creating new municipal transportation open to all residents? That's what always seemed to be the real problem with them to me.
DannoHung··on Wind now competes with fossil fuels, and solar almost does
Are physical potential energy storage systems completely impractical?

Flywheels, compressed air, gravity storage?

DannoHung··on 'Extreme poverty' to fall below 10% of world population for first time
Doesn't this basically just show that there has been inflation?

Why not use some stuff like infant mortality or literacy or deaths from starvation or deaths from communicable disease? You know, stuff that actually indicates whether someone is impoverished or not.

DannoHung··on The Light L16 – a multi-aperture computational camera
This is a straight up weird product at the price point they're targeting. And given that they're asking for money up front and not providing sample raw images and/or full resolution jpegs makes me very hesitant.
DannoHung··on Trying Rust for web services
Hi Steve,

I don't have a login on rust-lang yet, but I wanted to add this comment regarding the documentation:

The rust-doc auto generated pages are really confusing. The sidebar generally fails to show where in the hierarchy of the API docs you are (ideally it would highlight the current page you're looking at in the hierarchy and provide the full hierarchy to give you context), the breadcrumbs don't indicate that they are links, the breadcrumbs indicate the type of the entry to the left rather than the right adding semantic confusion, and long pages tend to not have a TOC meaning you have to either search in the page or know the page structure ahead of time (probably mostly an issue for new users).

I feel like those are all simple mechanical issues that could make the auto-generated rust-docs a lot more useful.

It'd also be nice to tie non-auto generated docs into a crate's documentation, but I haven't looked into how rustdoc works so I'd guess that's possible but a lot of people don't do it.

DannoHung··on Meet Model X
How is that a bioweapon defense then? Do HEPA filters work against bioweapons?
DannoHung··on The Measured Worker
Measurements are also only as good as your experimental design, your data collection tools, your methodology, and your statistical analysis.

Which is my way of saying, "Doing good science is actually pretty hard."

DannoHung··on Medium Raises $57M
To be fair to him, Google drove Dodgeball straight into the ground.

To be mean to him: Deciding to split Foursquare into Yelp-lite and a shitty social network was a terrible, terrible idea.

DannoHung··on Smaller, Faster, Cheaper, Over: The Future of Computer Chips
Are gallium based chips completely non-viable or something? I thought they were the next big thing in chip materials that would let us get past the Moore's law restrictions in silicon?
← PreviousPage 4 of 34Next →