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sudo lsof -i :<port number>

# e.g. sudo lsof -i :8080

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# Communicate with GameAnalytics.com to download aggragrated data.
# Author:  Jesdakorn S. (@thet0ny / http://www.ton.in.th / http://zaqqle.com)

require 'rubygems'
require 'active_support/core_ext/date'
require 'active_support/core_ext/numeric/time' # Date time helper (when use outside Rails)

require 'HTTParty' # gem install httparty
require 'JWT' # gem install jwt

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class HstoreQuery

  attr_accessor :klass, :hstore_field, :parent

  # parent = Game.first.players
  # a = HstoreQuery.new Player, 'game_values', parent
  # a.search 'float_money', '>', 9
  def initialize(klass, field, parent = nil)
    self.klass = klass
    self.hstore_field = field

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# hstore customized, in the model.
# given your h store field is 'data' and the hash key named 'trace'
ransacker :trace do |parent|    
  Arel::Nodes::InfixOperation.new('->', parent.table[:data], 'trace')
end

# Filter some field out when query field selection for ransack from (Still put in your model)
def self.ransackable_attributes(auth_object = nil)
  super - ['id', 'player', 'updated_at']
end

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start on started network
stop on stopping network

kill signal INT
respawn

script
  export GOROOT=/home/ton/go
  PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:$GOROOT/bin
  export GOPATH=$GOROOT/gocode

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Capybara.register_driver :poltergeist_ssl do |app|
  Capybara::Poltergeist::Driver.new(app, js_errors: false, timeout: 5000, phantomjs_options: ['--ignore-ssl-errors=yes', '--ssl-protocol=any'])
end

Capybara.default_driver = :poltergeist_ssl

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As Amazon AMI is a subset of Redhat so most of the tutorials will turn you to `yum` by adding or configuring some repo config file which those repo is old and tutorials are no longer valid.

To make it super easy, I would recommend you to use a static build of `ffmpeg` which you can find it at:
http://johnvansickle.com/ffmpeg/

Get a latest stable release version (the 3rd or 4th line e.g. 2.5 at the moment of writing) not the 1st - 2nd line which is considerable as a unreleased build and maybe unstable.  You can go ahead and copy a download link which correct to your machine CPU architecture e.g. 64bits

After that `ssh` to your Amazon EC2 and do:

```

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cd /var/log
sudo mkdir rails
sudo chown ec2-user:ec2-user rails


# /etc/logroate.conf
# Rotate weekly and when reached 52 rotations, notify or remove
# compress to .gz with delaycompress (compress will be done on next round of logrotation)
# ignore size 0 file 
# copytruncate so we don't need to restart unicorn.

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sudo /bin/dd if=/dev/zero of=/var/swap1 bs=1G count=3  #(block size 1G for 3 which is 3GB in total)
# or sudo /bin/dd if=/dev/zero of=/var/swap1 bs=1M count=2048
sudo /sbin/mkswap /var/swap1
# Change permission so the swap file is secured.
sudo chmod 0600 /var/swap1
# Turn swap on
sudo /sbin/swapon /var/swap1

# Add auto (mount/)swapon when instance start
sudo vi /etc/fstab

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mysqldump DATABASE --tables logs --where="created_at < '2015-03-01'" -u XXXX -pXXXXX --host ZZZZZZ.com > data.sql