debasishg

General Background and Overview

1. 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.
2. Models and Issues in Data Stream Systems
3. 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
4. Approximate Frequency Counts over Data Streams by Gurmeet Singh Manku & Rajeev Motwani : One of the early papers on the subject.
5. [Methods for Finding Frequent Items in Data Streams](http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.187.9800&rep=rep1&t

devshorts

public class StreamUtil<T>{
    public static <T> Stream<T> ofIterable(Iterable<T> iter){
        Iterator<T> iterator = iter.iterator();
        
        Stream.Builder<T> builder = Stream.builder();

        while(iterator.hasNext()){
            builder.add(iterator.next());
        }

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

bpsm

(ns clj-gunzip.core
  (:require [clojure.java.io :as io])
  (:require [clojure.string :as str])
  (:import java.util.zip.GZIPInputStream
           java.util.zip.GZIPOutputStream))

(defn gunzip
  "Writes the contents of input to output, decompressed.

  input: something which can be opened by io/input-stream.

gburd

# Documentation for HAProxy
#   http://code.google.com/p/haproxy-docs/w/list
#   http://haproxy.1wt.eu/download/1.2/doc/architecture.txt

# NOTES:
#   open files limits need to be > 256000, use ulimit -n to set (on most POSIX systems)

global
        log 127.0.0.1     local0
        log 127.0.0.1     local1 notice

rdegges

sudo aptitude -y install nginx
cd /etc/nginx/sites-available
sudo rm default
sudo cat > jenkins
upstream app_server {
    server 127.0.0.1:8080 fail_timeout=0;
}

server {
    listen 80;

snuggs

############################################################################
#  _
# | |_ _ __ ___  _   ___  __
# | __| '_ ` _ \| | | \ \/ /
# | |_| | | | | | |_| |>  <
#  \__|_| |_| |_|\__,_/_/\_\
#
#  Cheatsheets:
#    https://devhints.io/tmux
# `property not found` issue:

bakkdoor

(require 'font-lock)

(defvar thrift-mode-hook nil)
(add-to-list 'auto-mode-alist '("\\.thrift\\'" . thrift-mode))

(defvar thrift-indent-level 2
  "Defines 2 spaces for thrift indentation.")

;; syntax coloring

dperini

//
// Regular Expression for URL validation
//
// Author: Diego Perini
// Created: 2010/12/05
// Updated: 2018/09/12
// License: MIT
//
// Copyright (c) 2010-2018 Diego Perini (http://www.iport.it)
//