alexmoore

%% Provides a timestamp like 2014-03-19T19:25:17.779905

DateTime = erlang:now().
{_,_,MicroSec} = DateTime.
{{Year,Month,Day},{Hour,Min,Sec}} = calendar:now_to_universal_time(DateTime).
DateString = io:format("~4..0B-~2..0B-~2..0BT~2..0B:~2..0B:~2..0B.~6..0B",
    [Year, Month, Day, Hour, Min, Sec, MicroSec]).
DateString.

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

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

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

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

#!/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

require 'rubygems'
require 'faker' 
require 'activerecord'

1000.times do
  # make a person
  # save this person
end

alexmoore

require 'rubygems'
require 'faker'

#Let's see if we can make a fake person...
person_name            = Faker::Name.name
person_email           = Faker::Internet.email
person_company         = Faker::Company.name
person_company_slogan  = Faker::Company.bs
person_phone           = Faker::PhoneNumber.phone_number
person_address         = Faker::Address.street_address

alexmoore

Programming Achievements: How to Level Up as a Developer

1. Select a particular experience to pursue.
2. Pursue that experience to completion. (Achievement unlocked!)
3. Reflect on that experience. Really soak it in. Maybe a blog post would be in order?
4. Return to Step 1, this time selecting a new experience.

This gist is a fork of the gist from this blog post.

alexmoore

L1 cache reference                  0.5 ns
Branch mispredict                   5 ns
L2 cache reference                  7 ns
Mutex lock/unlock                   25 ns
Main memory reference               100 ns
Compress 1K bytes with Zippy        3,000 ns
Send 2K bytes over 1 Gbps network   20,000 ns
Read 1 MB sequentially from memory  250,000 ns
Round trip within same datacenter   500,000 ns
Disk seek                           10,000,000 ns