I run into this pretty frequently with Docker on Mac OS X. Passing the `--rm` flag helps, but for cleaning up old/unused containers, I usually set these two commands on a cron:

    # Remove un-tagged or un-named images
    for im in $(docker images | awk '/<none>/ { print $3 }'); do docker rmi $im; done

    # Remove stopped containers
    docker rm $(docker ps -a -q)

You can also do this:

    docker rmi $(docker images -q -f dangling=true

You might consider doing the same with volumes:

    docker volume rm $(docker volume ls -q -f dangling=true)

But be careful with the volume one. I'd read the documentation around volumes first and see if you're deleting what you want to. :)

Hmm...

https://www.reddit.com/r/todayilearned/comments/4iznwi/til_r...

2 of Bushra8's 3 comments have come from 2 different Reddit users, so it would seem.

We've banned that account and another one doing the same thing. If anybody notices more of this, please let us know at hn@ycombinator.com.

Google has been around for 17 years and employees roughly 10,000+ software developers. I think it's reasonable to assume that the 2B LOC metric is accurate...

You pointed it out yourself, but I think you underestimated its importance: Microsoft works on many other things. Office, XBox, Windows Phone, Exchange, SQL Server, .Net, etc. I suspect Microsoft's total line count is similar to Google's. The difference, however, is that it's not one codebase.

Does anyone have more information about this essay (apart from it being written by Alan Kay)?

I can't seem to find anything that doesn't link back to the worrydream site.

There are some YouTube lectures out there from him on this topic. Specifically I remember him showing a slide with the earth on a podium, or a globe on a stand or something, and talking about the different dynamic stabilities of it being slightly kicked and wobbling or kicked hard and toppling, very similar to this from the essay:

the part where he says:

"One way to imagine “stability” is to take a bottle and turn it upside down. If it is gently poked, it will return to its “stable position”. But a slightly more forceful poke will topple it. It is still a system, but has moved into a new dynamic stability, one which will take much more work to restore than required to topple it."

He mentions towards the end that there's a load-balancer that pauses the connection while the migration occurs. When the container comes back up, the traffic is redirected to the new instance and the connection resumes.

Agree 100%. The first line:

> Firefox OS for TV is a new direction that base on the vision of Connected Home from Mozilla.

I mean, c'mon. It's hard to take the post seriously when they didn't even bother to proof-read.

www.yipgo.com leads to an nginx welcome page... Not super confidence-inspiring.

It also doesn't help that the Hadoop ecosystem is unstable, insecure, and overkill for the vast majority of the use-cases out there. Cloudera can also be thrown into the same bucket when they will no doubt file next year.

IMHO Hadoop just doesn't have a viable business model behind it. The people that really need a big data solution will run it themselves, and the people that don't (who will have it shoved down their throats all in the name of big data anyways) will unsuccessfully run it for a year or two before scrapping it for a better, more appropriate solution.