[alexandros]

here's an alternative interpretation: Due to their unique requirements, they were forced to investigate alternative approaches to the problem, and the approach they went with, they believe, is useful to a lot more people than just themselves. This is both plausible and matches the announcement, so why take a bad faith approach to someone releasing some code to the open source? Would you prefer if they kept it closed?

And since we're talking about github, haven't they already launched a highly successful pair of projects in atom/electron, in areas where both had competition? why start with negativity before we see what they come out with?

[saurik]

Huh? Atom/Electron is another great example of GitHub duplicating a ton of existing projects (whether dependencies such as CEF and node-webkit or high-level solutions such as ACE) without seemingly having any interest at all in joining those existing projects. Just because someone is successful at doing this does not make what they are doing any more reasonable: if anything it should just put them in a similar place in your mind to the Microsoft of the 90s which many people here would denigrate. GitHub's model of "open source"--the one which it is, devastatingly, teaching to an entire generation of developers--is only about code being available as opposed to being about community and collaborative design. Asking if one would prefer an alternative where the code is simply kept closed source ignores the premise of the compliant: that the code being an advertised separate project undermines the premise that working with an existing project to solve a problem tons of those users almost certainly also have. :/

[alexandros]

Open source does not entail any responsibility to work or not work together with any pre-existing project. What you describe is more cathedral than bazaar. There are thousands of possible reasons, from architectural choices to personalities, that someone may have not chosen to work with an existing project. I will not fault them for giving me a superior result, for free (in both senses). To compare this with Microsoft in the nineties is sheer madness.

[cstejerean]

Or maybe they wanted to spend their energy actually solving their problems rather than trying to persuade the maintainers of other projects about their approach. For example, could they have proposed some changes to IPVS to get rid of multicast for state sharing? Maybe. But then they'd spend all that time arguing with other users of that project about the relative merits of each. Instead they built a new solution and users now can have a choice, including the choice to take some of these ideas and apply them to the other projects if they are clearly superior.

I would accuse them of NIH if they simply reinvented another wheel when there was a perfectly acceptable solution already out there. But it doesn't seem like that was the case. Instead they clearly evaluated the existing solutions, found shortcomings, and decided to solve those problems for themselves, and then publish the resulting code. I see nothing wrong with that approach.

[olalonde]

> Due to their unique requirements [...] This is both plausible

I'm skeptical that Github's load balancing requirements are that different from any of the other large file hosts and SaaS companies. But it's possible and I'm not in a position to tell. That being said, the "NIH syndrome" is a largely overlooked problem in our industry and I think it's reasonable to raise concerns over new projects that may be reinventing the wheel.

[positr0n]

Some of the requirements they list are pretty unique to github since they serve .git to git clients as well as http to http clients (which is what most SaaS companies do). Like a very long running git clone from someone with slow internet not having its connection dropped.

[sitkack]

As person who has used github on totally lousy connections in remote parts of the world, it faired far better than most Isomorphic web apps. People in Nepal can use github to actually get work done. Most current generation web apps won't even load.

[contingencies]

I second this from China. Apple Appstore based OSX updates are literally impossible here. Annoyingly, they are required to upgrade Xcode.

[sitkack]

One technique I used is to download updates directly via

    wget -c --limit-rate=200K http://support.apple.com/downloads/DL1833/en_US/osxupd10.10.5.dmg

-c resumes download where left off, the rate limiting can be used to match the speed of your connection or intermediaries reducing stalls, drops and angry network users. I would often keep a list of URLs in `download-queue.txt` and use the above flags with -i to load the list of urls, letting it run overnight at some much lower speed.

[contingencies]

A download manager would be fine if there was a non-opaque method of determining the download address, and they actually let you do that (I know the developer site for instance uses some combination of cookies/referrers to limit external access to binaries presented for download).