Alexei Zaviruha AZaviruha

This is not intended to be comprehensive or authoritative, just free online resources I've found valuable while learning more about Erlang.

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Instruction

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

General Background and Overview

Probabilistic Data Structures for Web Analytics and Data Mining : A great overview of the space of probabilistic data structures and how they are used in approximation algorithm implementation.
Models and Issues in Data Stream Systems
Philippe Flajolet’s contribution to streaming algorithms : A presentation by Jérémie Lumbroso that visits some of the hostorical perspectives and how it all began with Flajolet
Approximate Frequency Counts over Data Streams by Gurmeet Singh Manku & Rajeev Motwani : One of the early papers on the subject.
[Methods for Finding Frequent Items in Data Streams](http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.187.9800&rep=rep1&t

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

	/*
	* Selenium WebDriver JavaScript test with Mocha and NodeJS
	*
	* Start with: SELENIUM=PATH_TO_SELENIUM_JAR/selenium-server-standalone-2.31.0.jar mocha -t 10000 -R list google-sample.js
	*
	* Download selenium-server-standalone-2.31.0.jar from https://selenium.googlecode.com/files/selenium-server-standalone-2.31.0.jar
	* 'sudo su' and 'npm install -g colors mocha selenium-webdriver'
	*
	* http://visionmedia.github.io/mocha/
	* https://code.google.com/p/selenium/wiki/WebDriverJs

	should = require 'should'
	mocha = require 'mocha'
	jsdom = require 'jsdom'
	global._ = require 'underscore'

	global.window = jsdom.jsdom().createWindow() # Create a fake DOM/jQuery for testing UI components
	global.document = window.document
	global.$ = require('jquery').create(window) # WARNING: jQuery for testing is 1.8.3 - different to app
	$.extend $.fn, fastClick: $.fn.click # extend jQuery with a faux fastClick method

	import Control.Monad.Reader

	hello :: Reader String String
	hello = do
	name <- ask
	return ("hello, " ++ name ++ "!")

	bye :: Reader String String
	bye = do
	name <- ask

	# This file has been auto-generated by i3-config-wizard(1).
	# It will not be overwritten, so edit it as you like.
	#
	# Should you change your keyboard layout somewhen, delete
	# this file and re-run i3-config-wizard(1).
	#

	# i3 config file (v4)
	#
	# Please see http://i3wm.org/docs/userguide.html for a complete reference!

	(ns typed-play.core
	(:require-macros [cljs.core.typed :as t])
	(:require [cljs.core.typed :as t]))

	(t/ann my-identity (All [x] (Fn [x -> x])))
	(defn my-identity [x]
	(if (number? x)
	(inc x)
	x))

-# delete local tag '12345'
-git tag -d 12345
-# delete remote tag '12345' (eg, GitHub version too)
-git push origin :refs/tags/12345
-# alternative approach
-git push --delete origin tagName
-git tag -d tagName