stympy

class ActiveRecord::Base
  @@cache_store = nil
  def self.cache_store
    @@cache_store ||= ActionController::Base.cache_store
  end

  def self.caches(method_name, key = nil, options = {}, &block)
    if key.is_a?(Hash)
      options = key
      key     = nil

stympy

class QueryTracer < ActiveSupport::LogSubscriber

  ACCEPT = %r{^(app|config|lib)}.freeze
  FRAMES = 5
  THRESHOLD = 300 # In ms

  def sql(event)
    return unless event.duration > THRESHOLD
    callers = Rails.
      backtrace_cleaner.

stympy

module ActiveRecord
  module ConnectionAdapters
    class AbstractAdapter
      protected

        # Turn:
        # User Load (6.3ms)  SELECT * FROM "users"
        # Into:
        # User Load /app/views/_partial.erb:27 (6.3ms) in `_app_views_partial_erb`  SELECT * FROM "users"

stympy

activerehashing yes
appendfsync everysec
appendonly no
bind 0.0.0.0
daemonize yes
databases 1
dbfilename dump_1.rdb
dir /var/redis/
glueoutputbuf yes
hash-max-zipmap-entries 512

stympy

gemcutter => redis downloads spec
=================================

keys
----

downloads                     => global counter for all gem downloads
downloads:today               => sorted set for downloads from today
downloads:rubygem:rails       => counter for all rails downloads
downloads:version:rails-2.3.5 => counter for all rails 2.3.5 downloads

stympy

# encoding: utf-8
require 'base64'

#
# Utility class for rails applications: manually decode (session) cookies!
#
# Just drop this in you rails application's lib directory, run a rails console
# session, require the file, then create an instance in order to analyze your
# cookie header (either the "Set-Cookie" response or "Cookie" request header).
#

stympy

require 'v8'
require 'open-uri'
require 'pp'
require 'ap'
require 'taka'
require 'ostruct'

#
# Monkey patch all elements to include a 'style' attribute
#

stympy

.DS_Store
Gemfile.lock
*.pem
node.json
tmp/*
!tmp/.gitignore

stympy

WAL-E needs to be installed on all machines, masters and slaves.

How to install WAL-E

Only one machine, the master, writes WAL segments via continuous archiving. The configuration for the master postgresql.conf is:

archive_mode = on
archive_command = 'envdir /etc/wal-e.d/env wal-e wal-push %p'
archive_timeout = 60

stympy

CREATE KEYSPACE IF NOT EXISTS docstore WITH replication = { 'class' : 'SimpleStrategy', 'replication_factor' : 1 };

CREATE TABLE IF NOT EXISTS docstore.metadata (
    userid text,
    docid text,
    joinkey text,
    title text,
    body text,
    PRIMARY KEY(userid, docid));