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How to link Docker services across hosts?
...rm allows you do "join" multiple docker daemons: You first create a swarm, start a swarm manager on one machine, and have docker daemons "join" the swarm manager using the swarm's identifier. The docker client connects to the swarm manager as if it were a regular docker server.
When a container st...
Heroku + node.js error (Web process failed to bind to $PORT within 60 seconds of launch)
...
Here's an example: github.com/heroku/node-js-getting-started/blob/master/index.js
– Pablo
Apr 28 '16 at 11:39
3
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Numpy - add row to array
...p.array(py_array)
numpy_row = np.array([4,5,6])
n_loops = 100
start_clock = perf_counter()
for count in range(0, n_loops):
numpy_array = np.vstack([numpy_array, numpy_row]) # 5.8 micros
duration = perf_counter() - start_clock
print('numpy 1.14 takes {:.3f} micros per ...
How do you run your own code alongside Tkinter's event loop?
...is unpredictable and platform-dependent.
The problem seems to be that app.start() counts as a reference to Tk, since app contains Tk elements. I fixed this by replacing app.start() with a self.start() inside __init__. I also made it so that all Tk references are either inside the function that call...
Styles.Render in MVC4
...rticular bundle which is declared inside the BundleConfig class in the App_Start folder.
In that particular case The call to @Styles.Render("~/Content/css") is calling "~/Content/site.css".
bundles.Add(new StyleBundle("~/Content/css").Include("~/Content/site.css"));
...
What's the difference between .bashrc, .bash_profile, and .environment?
...ke every flavor of Bash I use has a different algorithm for deciding which startup scripts to run. For the purposes of tasks like setting up environment variables and aliases and printing startup messages (e.g. MOTDs), which startup script is the appropriate place to do these?
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How can I propagate exceptions between threads?
...nt worker()
{
static std::atomic<int> hundreds(0);
const int start = 100 * hundreds++;
const int end = start + 100;
int sum = 0;
for (int i=start; i < end; ++i) {
if (is_prime(i)) { printf("%d is prime\n", i); sum += i; }
}
return sum;
}
int spawn_worker...
Read a file in Node.js
...
Use path.join(__dirname, '/start.html');
var fs = require('fs'),
path = require('path'),
filePath = path.join(__dirname, 'start.html');
fs.readFile(filePath, {encoding: 'utf-8'}, function(err,data){
if (!err) {
console.log('r...
What does numpy.random.seed(0) do?
...d(4)
array([ 0.96, 0.38, 0.79, 0.53])
(pseudo-)random numbers work by starting with a number (the seed), multiplying it by a large number, adding an offset, then taking modulo of that sum. The resulting number is then used as the seed to generate the next "random" number. When you set the see...
Android error: Failed to install *.apk on device *: timeout
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I changed it to 10000ms. It threw the same error. Restarting the device worked in my case.
– nous
Feb 5 '15 at 21:38
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