mcroydon

finger_server.js

An extremely minimal implementation of the Finger protocol using node.js.

To run (Finger uses port 79 which requires sudo):

sudo node finger_server.js

mcroydon

var net = require('net');

var END = '\r\n';

var groups = ['nodejs.test'];
var articles = {
  '<1@127.0.0.1>' : {body : 'An article.'},
  '<2@127.0.0.1>' : {body : 'Another article.'},
};

mcroydon

package com.postneo
package index
package test

import org.apache.lucene.analysis.SimpleAnalyzer
import org.apache.lucene.analysis.standard.StandardAnalyzer
import org.apache.lucene.document.{Document, Field}
import org.apache.lucene.index.{IndexWriter, Term}
import org.apache.lucene.search.{IndexSearcher, Query, TermQuery, TopDocs}
import org.apache.lucene.store.RAMDirectory

mcroydon

# Download all current FAA sectional GeoTIFFs (zipped)

import urllib, os, csv
from lxml.html.soupparser import fromstring

FAA_CHART_URL = 'http://aeronav.faa.gov/index.asp?xml=aeronav/applications/VFR/chartlist_sect'
BASE_CONTENT_URL = 'http://aeronav.faa.gov/'
DOWNLOAD_DIR = 'download'

data = urllib.urlopen(FAA_CHART_URL).read()

mcroydon

program TCPFing;
uses
  DOS, TrumpTCP, Crt, StrTools;


CONST
  NulAddr: TIPAddr = (S_B1:0; S_B2:0; S_B3:0; S_B4:0);

var Result: Byte;
    TmpAddr: TIPAddr;

mcroydon

// gopher.js - a minimal gopher implementation using node.js
// Released under the 3 clause BSD license by Matt Croydon <mcroydon@gmail.com> (http://postneo.com)

var net = require('net');

net.createServer(function (socket) {
  socket.setEncoding("ascii");
  socket.on("data", function (data) {
    if (data === '\r\n') {
        console.log('Serving index.');

mcroydon

package main

import (
	"bufio"
	"flag"
	"fmt"
	"io"
	"log"
	"net"
	"net/textproto"

mcroydon

[14:16:36] <rgarcia_> is there a reason why you can't start a serf agent and simultaneously tell it to join a cluster?
[14:16:56] <rgarcia_> seems awkward to have to run another cmd to tell it to join
[14:17:43] <Kyle> thought you could?
[14:18:41] • Kyle: looks
[14:19:20] m0hit (~mohit@208.66.30.174) joined the channel.
[14:19:27] <Kyle> heh, guess you can't
[14:20:05] <Kyle> rgarcia_: could use a member join event, look for you, and serf join then?
[14:20:06] <Kyle> *shrug*
[14:20:43] <jacques_> could open a GI for it
[14:20:46] <@mitchellh> rgarcia_ So I originally coded that in

mcroydon

{
  "properties": {
    "environment": {
      "runtime": "html",
      "src": "./preview/iframe.html",
      "width": "300",
      "height": "300",
      "content": "<div id='content'></div>"
    },
    "name": "Hello World"

mcroydon

Context: I was asked for a list of interesting reading relating to "distributed databases, behavior under partitions and failures, failure detection." Here's what I came up with in about an hour.

For textbooks, "Introduction to Reliable and Secure Distributed Programming" is a superb introduction to distributed computing from a formal perspective; it's really not about "programming" or "engineering" but about distributed system fundamentals like consensus, distributed registers, and broadcast. Used in Berkeley's Distributed Computing course (and HT to @lalithsuresh) Book Site

Notes from courses like Lorenzo Alvisi's Distributed Computing class can be great.

There are a bunch of classics on causality, [Paxos](ht