irvingpop

#!/opt/opscode/embedded/bin/escript

-define(SELF, 'monitor@127.0.0.1').
-define(BIFROST, 'oc_bifrost@127.0.0.1').
-define(BIFROST_COOKIE, 'oc_bifrost').
-define(ERCHEF, 'erchef@127.0.0.1').
-define(ERCHEF_COOKIE, 'erchef').

get_waiting(Node, Cookie) ->
    erlang:set_cookie(node(), Cookie),

irvingpop

Connecting to your Chef server as an admin, via the API

# launch pry
/opt/opscode/embedded/bin/pry 
[1] pry(main)> require 'chef/rest'
=> true

# create a Chef::REST object pointed at localhost with the pivotal user and pivotal.pem (required for admin operations)
[2] pry(main)> chef_rest = Chef::REST.new('https://localhost/', 'pivotal', '/etc/opscode/pivotal.pem')

irvingpop

# NOTE:  set all of the workers values to equal the number of CPU cores on the Analytics server

analytics_fqdn "analytics.trusty.aws"
topology "standalone"

alaska['max_task_parallelism'] = 130

alaska['action_queue'] = {}
alaska['action_queue']['workers'] = 8
alaska['action_queue']['max_spout_pending'] = 100

irvingpop

As of March 24, 2015 that the 'windows-guest-support' branch of test-kitchen has been merged to master, but not the equivalent kitchen-vagrant branch.

Using the Windows cookbook, Gemfile like so:

source "https://rubygems.org"

group :development do
  gem "test-kitchen", :git => 'https://github.com/test-kitchen/test-kitchen.git'
  gem 'kitchen-vagrant', git: 'https://github.com/test-kitchen/kitchen-vagrant.git', :branch => 'windows-guest-support'
  gem "berkshelf"

irvingpop

#!/usr/bin/env ruby

LVM_LV = '/dev/opscode/drbd'
LVM_LV_MOUNT = '/var/opt/opscode/drbd/data'
LVM_SNAP_SIZE = '16G'
FILE_SIZE_MB = 1024
NUM_FILES = 15

def write_files(iterations)
  aggregate_speed = 0

irvingpop

backend systems:

• c3.2xlarge - EBS optimized and Enhanced Networking enabled
• DRBD backing volume: 80 GB SSD (ec2 ephemeral storage /dev/xvdb)
• Ubuntu Trusty official release from 11/26/2014
• DRBD 8.4.3 (packaged in Ubuntu kernel extras package)

root@ip-ub-backend1:~# uname -a
Linux ip-ub-backend1.trusty.aws 3.13.0-40-generic #69-Ubuntu SMP Thu Nov 13 17:53:56 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

irvingpop

1. Download the database:

curl http://localhost:5984/mydb/_all_docs?include_docs=true > mydb.json

2. Change the first line from:

    {"total_rows":1121,"offset":0,"rows":[
    *TO*
    {"docs":[

irvingpop

#!/opt/opscode/embedded/bin/ruby
#
# Author:: Lamont Granquist (<lamont@opscode.com>)
# Copyright:: Copyright (c) 2011 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#

irvingpop

org_guids = ORGS.all.map {|o| o.guid}

sql.select(:checksum, :org_id).from(:nodes).exclude(:org_id => org_guids)
# sql.select(:checksum, :org_id).from(:nodes).exclude(:org_id => org_guids).delete

sql.select(:checksum, :org_id).from(:cookbook_version_checksums).exclude(:org_id => org_guids)
# sql.select(:checksum, :org_id).from(:cookbook_version_checksums).exclude(:org_id => org_guids).delete

irvingpop

Understanding the layers

1. ext4 (/var/opt/opscode/drbd/data)
2. drbd device (pc0)
3. LVM Logical Volume (/dev/opscode/data)
4. LVM Volume Group (opscode)

Resources

• http://pubmem.wordpress.com/2010/09/16/how-to-resize-lvm-logical-volumes-with-ext4-as-filesystem/