madlep

class Either
  def self.pure(value)
    Right.new(value)
  end

  class Left
    def initialize(left)
      @left = left
    end

mohanpedala

NGINX Performance Tuning

Content Compressions and Decompression

• Documentation
  • NGINX http_gzip module
  • NGINX http_gunzip module
• Enable gzip. by default, we’re not going to compress the responses that we’re getting from proxied servers or any piece of content that isn’t HTML.
• But if one of our proxied servers happens to send us a pre-compressed response then we probably want to decompress it for clients that can’t handle gzip. In this situation, we’ll use the gunzip module

  $ vim /etc/nginx/nginx.conf

velvia

* See all current contexts
* For each context see all the jobs that are running
* History of past jobs for a given context.  Actually this is not technically available via API; but history of past jobs
* Be able to see configuration for each job present or past (this is available via a tiny "C" link in current UI)
* Job results
* Link to Spark UI for detailed analysis

DrBoolean

const daggy = require('daggy');
const {foldMap} = require('pointfree-fantasy')
const {concat, toUpper, prop, identity, range, compose} = require('ramda');

// Contravariant functors usually have this shape F(a -> ConcreteType).
// In other words, some type holding a function which is parametric on its input, but not output.
// They don't always have that shape, but it's a good intuition
// Covariant functors are what we're used to, which are parametric in their output
//================================================================

gbrayut

#Bosun unit file at /etc/systemd/system/bosun.service
[Unit]
Description=Bosun Service
After=network.target
After=docker.service
After=rsyslog.service

[Service]
Type=simple
User=root

havenwood

diff --git a/vm_opts.h b/vm_opts.h
index b67e254..3e3935a 100644
--- a/vm_opts.h
+++ b/vm_opts.h
@@ -18,8 +18,8 @@
  * Following definitions are default values.
  */
 
-#define OPT_TRACE_INSTRUCTION        1
-#define OPT_TAILCALL_OPTIMIZATION    0

obolton

AWS ELB with Node.js and WebSockets

This assumes that:

• You are using Nginx.
• You want to accept incoming connections on port 80.
• Your Node.js app is listening on port 3000.
• You want to be able to connect to your Node.js instance directly as well as via the load balancer.

####1. Create load balancer

robwormald

var gulp   = require( 'gulp' ),
    server = require( 'gulp-develop-server' );

// run server
gulp.task( 'server:start', function() {
    server.listen( { path: './app.js' } );
});

// restart server if app.js changed
gulp.task( 'server:restart', function() {

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

havenwood

require 'stringio'

module Capture
  def self.stdout &block
    $stdout = captured_stdout = StringIO.new
    block.call
    captured_stdout
  ensure
    $stdout = STDOUT
    block.call