dshaw

Redis Conf 2012 Talks

• Sicilian Rhapsody - @andyet
  

• Redis Manifesto - @antirez
  

• Redis - @pietern
  

• Redis Analytics - @jseibert
  http://www.slideshare.net/crashlytics/crashlytics-on-redis-analytics

dshaw

A Bloom Filter in Redis

This is a really simple implementation of a bloom filter using Redis 2.6's lua scripting facility.

Though it "works", it's just a proof of concept. The choice and implementation of hashing functions leave something to be desired (I'm sure it's a fine implementation of CRC32 that I borrowed, but it's in pure lua, and, well, CRC32 is not the best function to use for a bloom filter).

Caveat Emptor, no refunds, etc. MIT License.

dshaw

Intro

1 https://gist.github.com/3144842
2 https://gist.github.com/3144998
3 https://gist.github.com/3145089
4 https://gist.github.com/3145226
5 https://gist.github.com/3145525
6 https://gist.github.com/3145551
7 https://gist.github.com/3145587
8 https://gist.github.com/3145608

dshaw

npm view `basename $PWD`

dshaw

// A module published to a private registry would optionally have a "registry" 
// property that is a reference to the registry where this module is published. 
//
// A `npm publish` would publish to the registry in the registry property.
//
// Otherwise, `npm --registry http://private.me:5984/registry/_design/app/_rewrite publish`
// 

{
  "name": "foo",

dshaw

var fs = require("fs")
  , net = require("net")
  , repl = require("repl")

module.exports = function replify (name, ctx) {
  var repl_path = "/tmp/" + name + ".sock"
  ctx || (ctx = {})

  fs.unlink(repl_path, function () {
    // intentionally not listening for the error. either way, we're good.

dshaw

var express = require('express')
  , repl = require('./repl');

var app = express.createServer();

app.get('/', function(req, res){
    res.send('Hello World');
});

app = repl(app);

dshaw

var exec = require('child_process').exec;

function respawn () {
  var child =  exec('date', function (error, stdout, stderr) {
    console.log('stdout: ' + stdout);
    console.log('stderr: ' + stderr);
    if (error !== null) console.log('exec error: ' + error);
  });

  child.on('exit', function (code, signal) {

dshaw

/**
 * A quick little thingy that takes a Stream instance and makes
 * it emit 'line' events when a newline is encountered.
 *
 *   Usage:
 *   ‾‾‾‾‾
 *  emitLines(process.stdin)
 *  process.stdin.resume()
 *  process.stdin.setEncoding('utf8')
 *  process.stdin.on('line', function (line) {

dshaw

/**
 * Module dependencies
 */

var io = require('socket.io-client');

/**
 * Configuration.
 */