alexmoore

This is unsupported by Basho, but you can build Basho's flavor of Erlang and Riak on Raspberry Pis. 

alexmoore

Internet Scale Services Checklist

A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."

• http://mvdirona.com/jrh/talksandpapers/jamesrh_lisa.pdf

Basic tenets

• Does the design expect failures to happen regularly and handle them gracefully?
• Have we kept things as simple as possible?

alexmoore

Just Open a Socket - https://www.youtube.com/watch?v=jytJXjI0oQU

alexmoore

package Blah;

import java.util.Iterator;
import java.util.NoSuchElementException;


public class SelectManyIterable<TSource, TResult> implements Iterable<TResult>
{
    public interface TransformProvider<TSource, TResult>
    {

alexmoore

#!/bin/bash

# For each node, search for reading large object messages, write to largeobject.read file
for NODE in 10.58.9*; do 
    IP=`echo "$NODE" | cut -d '-' -f1`; 
    cat $NODE/lo.r.console.log | sed "s/.*Reading large object of size \([0-9]*\) from \(<<.*>>\)\/\(<<.*>>\)/\{\"$IP\",\2,\3,\1\},/" | sort | uniq > $NODE/lo.r.list ; 
done

# For each node, search for writing large object messages, write to largeobject.write file
for NODE in 10.58.9*; 

alexmoore

FindPrimaries = fun(Bucket, Key, Ring) ->
    BKey = {Bucket,Key},
    DocIdx = riak_core_util:chash_key(BKey),
    BucketProps = riak_core_bucket:get_bucket(Bucket, Ring), 
    [NValue] = [Y || {X1, Y} <- BucketProps, n_val == X1],
    CHBin = chashbin:create(riak_core_ring:chash(Ring)),
    Itr = chashbin:iterator(DocIdx, CHBin),
    {Primaries, Itr2} = chashbin:itr_pop(3, Itr),
    Primaries
end.

alexmoore

http://www.infoq.com/presentations/Simple-Made-Easy
http://www.infoq.com/presentations/integration-tests-scam
http://blog.thecodewhisperer.com/2010/09/14/when-is-it-safe-to-introduce-test-doubles
http://youtu.be/yTkzNHF6rMs
http://pyvideo.org/video/1670/boundaries
http://skillsmatter.com/podcast/ajax-ria/enumerators
http://alistair.cockburn.us/Hexagonal+architecture
http://c2.com/cgi/wiki?PortsAndAdaptersArchitecture
http://www.confreaks.com/videos/977-goruco2012-hexagonal-rails
http://www.confreaks.com/videos/1255-rockymtnruby2012-to-mock-or-not-to-mock

alexmoore

SetDebug = fun() -> {node(), lager:set_loglevel(lager_file_backend, "/var/log/riak-cs/console.log", debug)} end.
SetInfo = fun() -> {node(), lager:set_loglevel(lager_file_backend, "/var/log/riak-cs/console.log", info)} end.

rp(rpc:multicall(erlang, apply, [SetInfo,[]])).

alexmoore

Keybase proof

I hereby claim:

• I am alexmoore on github.
• I am alexmoore (https://keybase.io/alexmoore) on keybase.
• I have a public key whose fingerprint is ED5D 175E 29A7 478F 0D4F 7D57 1D71 6D67 A969 0E08

To claim this, I am signing this object:

alexmoore

unpack_riak_debugs () {
    mkdir -p compressed
    for file in `ls *riak-debug.tar.gz`
    do
        tar xzf $file
        mv $file compressed
    done

    for file in `ls -1 | grep riak-debug`
    do