rpip

Papers, articles, blog posts, talks

• http://efcasado.github.io/riak-core_intro/
• http://basho.com/statebox-an-eventually-consistent-data-model-for-erlang-and-riak/
• http://dancres.github.io/Pages/
• http://www.erlang-factory.com/conference/SFBay2010/speakers/AndyGross
• http://thinkdistributed.io
• http://christophermeiklejohn.com/distributed/sycstems/2013/07/12/readings-in-distributed-systems.html
• http://christophermeiklejohn.com/crdt/2014/07/22/readings-in-crdts.html
• http://www.aosabook.org/en/riak.html

slfritchie

Erlang Tracing: more than you wanted to know

Rough Outline

• What can be traced?
• How can trace events be specified?
• "match specifications": twisty passages, all alike
• WTF, can I just use DTrace and drink my coffee/beer/whisky in peace?
• Trace delivery mechanisms: pick one of two

mrb

• 1 2lb bag good AP flour
• 1 active dry yeast packet
• 25 grams salt
• 600 grams water (just over 2 cups)

Mix the salt, yeast, water and about 3/4 of the flour with the paddle attachment (on your stand mixer, or you can try it by hand which I've never done) for about a minute until it is all mixed, it should be pretty loose.

Let it sit, covered, for about 20 minutes.

Knead it on low for 5-7 minutes, until it starts to even out in texture, then start adding the rest of the flour until the dough starts to pull away from the bowl. It should still be pretty wet though. Knead for another 5-7 minutes on med-low, let it rest again for 20 minutes, then remove it to a floured bench, work it with your hands, shape it, and cut it into 4-5 even sized balls.

rgs

Falsehoods programmers believe about prices

1. You can store a price in a floating point variable.
2. All currencies are subdivided in 1/100th units (like US dollar/cents, euro/eurocents etc.).
3. All currencies are subdivided in decimal units (like dinar/fils)
4. All currencies currently in circulation are subdivided in decimal units. (to exclude shillings, pennies) (counter-example: MGA)
5. All currencies are subdivided. (counter-examples: KRW, COP, JPY... Or subdivisions can be deprecated.)
6. Prices can't have more precision than the smaller sub-unit of the currency. (e.g. gas prices)
7. For any currency you can have a price of 1. (ZWL)
8. Every country has its own currency. (EUR is the best example, but also Franc CFA, etc.)

dergraf

-module(hilbert).
-export([curve/1, curve/7, point_to_hilbert/3]).

-define(HILBERTMAP, [
        {a, [{{0,0},{0,d}}, {{0,1},{1,a}}, {{1,0},{3,b}}, {{1,1},{2,a}}]},
        {b, [{{0,0},{2,b}}, {{0,1},{1,b}}, {{1,0},{3,a}}, {{1,1},{0,c}}]},
        {c, [{{0,0},{2,c}}, {{0,1},{3,d}}, {{1,0},{1,c}}, {{1,1},{0,b}}]},
        {d, [{{0,0},{0,a}}, {{0,1},{3,c}}, {{1,0},{1,d}}, {{1,1},{2,d}}]}
        ]).

sureshsaggar

'''
Description: dashboard/* primarily powers the APIs requires to support the growth dashboards.
@author: sureshsaggar
'''
#!/usr/bin/env python

from httpserver import *
from werkzeug.routing import *
import time
import redis

chrismytton

Mutt/Gmail/OS X Keychain

Create a new keychain item, enter the Keychain Item Name as mutt, the Account Name as your gmail email address and then enter your password, then add the keychain item.

2-step auth

If you're using Google 2-step auth, you'll need to generate an Application-specific password from your Google Account settings and enter that as the password.

gist:3816521

import sqlite3
import pdb
conn = sqlite3.connect('AddressBook.sqlitedb')
c = conn.cursor()
sql = "select  ABMultiValue.value, ABPerson.ROWID  from ABPerson,ABMultiValue where ABMultiValue.record_id=ABPerson.ROWID"
ins = "update ABMultiValue set value='%s' where record_id=%s"
l = [9,12]
prefix = ['08','09','06','05','03']
c.execute(sql)
res = c.fetchall()

gburd

-module(timeit).
-compile(export_all).

%% @doc Dynamically add timing to MFA.  There are various types of
%% timing.
%%
%% all - time latency of all calls to MFA
%%
%% {sample, N, Max} - sample every N calls and stop sampling after Max
%%

vlm

%% Given the parsed HTML tree in the following format:
%%
%% Types HTML = [Element]
%%       Element = {Tag, [Attribute], [Element | Text]}
%%       Tag = atom()    % e.g. 'a', 'pre', 'p'
%%       Attribute = {Name, Value}
%%       Name = atom()
%%       Value = string()
%%       Text = iolist()
%%