Yannis Kolovos

Prerequisites

Homebrew
Python 2.7
Git

Graphite

Install Cairo

There's an issue with cairo 14.x that results in the axis fonts on the graphs being HUUUUUGE. Downgrading to 12.6 helps:

cd /usr/local/Library/
git checkout 7073788 /usr/local/Library/Formula/cairo.rb
brew install cairo
brew install py2cairo
sudo pip install cairocffi

Install Django

pip install Django==1.8
pip install django-tagging

Install Graphite

sudo pip install carbon
pip install whisper
sudo pip install graphite-web
sudo pip install Twisted==15.2

sudo chown -R <your username>:staff /opt/graphite

Configure graphite

cd /opt/graphite
cp conf/carbon.conf{.example,}
cp conf/storage-schemas.conf{.example,}

cd webapp/graphite

# Modify this file to change database backend (default is sqlite).
cp local_settings.py{.example,}

# Initialize database
python manage.py syncdb

Start carbon & graphite

python /opt/graphite/bin/carbon-cache.py start

(Ignore this error: WHISPER_FALLOCATE_CREATE is enabled but linking failed.)

python /opt/graphite/bin/run-graphite-devel-server.py /opt/graphite

Hope that it works!

Go to:

http://localhost:8080

You should see this if it works properly:

If you get a broken image, it most likely means that something is wrong py2cairo and cairo.

Check the debug output here:

http://localhost:8080/render

Optional convenience aliases

Add this to your .bashrc or .bash_profile or .aliasrc:

alias carbon='python /opt/graphite/bin/carbon-cache.py'
alias graphite-web='python /opt/graphite/bin/run-graphite-devel-server.py /opt/graphite'

Statsd

Install Node

brew install nodejs

Clone the repo

sudo git clone https://github.com/etsy/statsd.git /opt/statsd
sudo chown -R trusche:staff /opt/statsd

Configure statsd

cp /opt/statsd/exampleConfig.js /opt/statsd/config.js

Fire it up!

node /opt/statsd/stats.js /opt/statsd/config.js

node statsd /

Resources

logstash json format

{
  "message"    => "hello world",
  "@version"   => "1",
  "@timestamp" => "2014-04-22T23:03:14.111Z",
  "type"       => "stdin",
  "host"       => "hello.local"
}

@timestamp is the ISO8601 high-precision timestamp for the event.
@version is the version number of this json schema
Every other field is valid and fine.

Observe it in real life

You can observe the message structure by doing output { stdout { codec => rubydebug } }

% bin/logstash  -e 'output { stdout { codec => rubydebug } }'
hello world

{
  "message"    => "hello world",
  "@version"   => "1",
  "@timestamp" => "2014-04-22T23:03:14.111Z",
  "type"       => "stdin",
  "host"       => "Macintosh.local"
}

	#View erl's version

	erl -eval 'erlang:display(erlang:system_info(otp_release)), halt().' -noshell

	#Install kerl
	$ brew install kerl

	# list releases
	$ kerl list releases

	$ kerl build R16B03 build-R16B03

	$ kerl list builds
	$ kerl install build-R16B03 ~/erlang/R1603/

	Installing Erlang/OTP R16B03 (build-R16B03) in /Users/ioannis/erlang/R1603...

	You can activate this installation running the following command:
	. /Users/ioannis/erlang/R1603/activate

	Later on, you can leave the installation typing:
	kerl_deactivate


	$ kerl list installations
	build-R16B03 /Users/ioannis/erlang/R1603


	ioannis@MacBook-Pro ~ ⚡️ which erl
	/Users/ioannis/erlang/R1603/bin/erl


	ioannis@MacBook-Pro ~ ⚡️ erl -eval 'erlang:display(erlang:system_info(otp_release)), halt().' -noshell
	"R16B03"

	module Grape
	module Formatter
	module Json
	class << self
	def call(object, _env)

	only = _env[Grape::Env::RACK_REQUEST_QUERY_HASH]["__only__"]
	if object.respond_to?(:to_json)
	return only.present? ? object.to_json(only: only) : object.to_json
	end


	MultiJson.dump(object)
	end
	end
	end
	end
	end

	# a = [:id, jobs: [:id, country: :id]].to_query('__only__')
	# => "__only__%5B%5D=id&__only__%5B%5D%5Bjobs%5D%5B%5D=id&__only__%5B%5D%5Bjobs%5D%5B%5D%5Bcountry%5D=id"

	# http://localhost:9292/bundles/68?__only__%5B%5D=id&__only__%5B%5D%5Bjobs%5D%5B%5D=id&__only__%5B%5D%5Bjobs%5D%5B%5D%5Bcountry%5D=id

	ActiveSupport::Notifications.subscribe do \|*args\|
	event = ActiveSupport::Notifications::Event.new(*args)
	Rails.logger.info "#" * 30
	Rails.logger.info "#{event.name} => #{event.duration}"
	end

	module Yo
	module Man

	extend ActiveSupport::Concern

	included do
	if Rails::VERSION::MAJOR >= 5
	prepend_before_action :rails_yo_before_filter
	after_action :rails_yo_after_filter
	else
	prepend_before_filter :rails_yo_before_filter
	after_filter :rails_yo_after_filter
	end
	end


	def rails_yo_before_filter
	Rails.logger.info "rails_yo_before_filter"
	end

	def rails_yo_after_filter
	Rails.logger.info "rails_yo_after_filter"
	end

	end
	end

	ActionController::Base.send(:include, Yo::Man)

	ps -ef \| grep 'irb' \| awk '{print $2}' \| xargs kill -9
	ps -ef \| grep 'pry' \| awk '{print $2}' \| xargs kill -9

Thursday, 23 November 2017

Wednesday, 22 November 2017

Friday, 17 November 2017

Thursday, 2 November 2017

Tuesday, 24 October 2017

Wednesday, 18 October 2017

CHAOS IN PRACTICE

Tuesday, 3 October 2017

Wednesday, 7 June 2017

Prerequisites

Graphite

Install Cairo

Install Django

Install Graphite

Configure graphite

Start carbon & graphite

Hope that it works!

Optional convenience aliases

Statsd

Install Node

Clone the repo

Configure statsd

Fire it up!

Resources

Monday, 29 May 2017

Wednesday, 24 May 2017

Tuesday, 11 April 2017

Wednesday, 15 March 2017

Thursday, 9 February 2017

Tuesday, 7 February 2017

Thursday, 2 February 2017

Wednesday, 1 February 2017

Tuesday, 31 January 2017

logstash json format

Observe it in real life

Thursday, 26 January 2017