You are trying to make a lot of simulataneous network connections to localhost. You get up to about 2000 HTTP requests per second, when your CPU usage goes up to 100% on all cores.
perf top reports the following:
31.01% [kernel] [k] inet_csk_bind_conflict
20.60% [kernel] [k] inet_csk_get_port
9.82% [kernel] [k] _raw_spin_lock
4.62% perf [.] 0x0000000000038ba1
3.90% [kernel] [k] _raw_read_unlock_bh
A modern application has a lot of passwords and keys floating around. Encryptions keys, database passwords, and API credentials; often typed in to text files and forgotten. Fortunately a new wave of tools are emerging to help manage, update, and audit these secrets. Come learn how to avoid being the next TechCrunch headline.
Secrets come in many forms, passwords, keys, tokens. All crucial for the operation of an application, but each dangerous in its own way. In the past, many of us have pasted those secrets in to a text file and moved on, but in a world of config automation and ephemeral microservices these patterns are leaving our data at greater risk than ever before.
Around 2006-2007, it was a bit of a fashion to hook lava lamps up to the build server. Normally, the green lava lamp would be on, but if the build failed, it would turn off and the red lava lamp would turn on.
By coincidence, I've actually met, about that time, (probably) the first person to hook up a lava lamp to a build server. It was Alberto Savoia, who'd founded a testing tools company (that did some very interesting things around generative testing that have basically never been noticed). Alberto had noticed that people did not react with any urgency when the build broke. They'd check in broken code and go off to something else, only reacting to the breakage they'd caused when some other programmer pulled the change and had problems.
Here’s how to make animations like this one. It requires intermediate Unix command-line knowledge, to install some tools and to debug if they don’t work. You’ll need these utilities:
curl (or you can translate to wget)convert and montage, part of ImageMagickffmpeg, plus whatever codecsparallel, for iteration that’s nicer than shell for loops or xargszsh for leading 0s in numerical ranges to work
| module Authenticable | |
| # Devise methods overwrite | |
| def current_user | |
| @current_user ||= User.find_by(authentication_token: request.headers['Authorization']) | |
| end | |
| def authenticate_with_token! | |
| render json: { errors: "Not authenticated" }, | |
| status: :unauthorized unless user_signed_in? |
Updated: Just use qutebrowser (and disable javascript). The web is done for.
ideas are great. here are some great ideas. you however cannot implement ideas without resources, which basically means money. I am a lot less interested in ideas for a company right now that aren't backed by that company's money / staff.
a few ways to use resources:
| # Without this fix, downgrading from Rails 4 to Rails 3 causes session cookies to blow up. | |
| # | |
| # The way the flash is stored in the session changed in a backwards-incompatible way. | |
| if Rails::VERSION::MAJOR == 3 | |
| module ActionDispatch | |
| class Flash | |
| def call(env) | |
| if (session = env['rack.session']) && (flash = session['flash']) |
