Stefan Botzenhart basiszwo

Background

I believe Ubuntu 16.04 comes with PostgreSQL 9.5. Thats good for a start, but it is a matter of time before you have the need of a PostgreSQL 9.6 cluster. For me it was to import a PG backup from Heroku.

The procedure couldn't have been any easier and is described below. If you are interested in upgrading your old cluster to 9.6 afterwards, you may be interested in this.

Instructions

Comparison of GeoMesa and GeoWave (single none configuration)
- PostGIS is always faster for single node configuration
- GeoWave use less storage
- GeoMesa is faster than GeoWave in queries
https://2016.foss4g-na.org/session/geomesawavetrellisjinni-processing-geospatial-data-scale-locationtech
https://groups.google.com/forum/#!searchin/geotrellis-user/merging$20pyramid%7Csort:relevance/geotrellis-user/6e7I-Ykybes/mGzJBEsoAAAJ
Geotrellis (github)
list of features

Tabs and Windows

Function	Shortcut
New Tab	`⌘` + `T`
Close Tab or Window	`⌘` + `W` (same as many mac apps)
Go to Tab	`⌘` + `Number Key` (ie: `⌘2` is 2nd tab)
Go to Split Pane by Direction	`⌘` + `Option` + `Arrow Key`
Cycle iTerm Windows	`⌘` + `backtick` (true of all mac apps and works with desktops/mission control)

Rubymotion notes

Testing

This line should be added to the app delegate didLaunchWithOptions method

class AppDelegate
  def application(application, didFinishLaunchingWithOptions:launchOptions)
 return true if RUBYMOTION_ENV == 'test'

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

-E: will describe the underlaying queries of the \ commands (cool for learning!)
-l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

https://www.infinum.co/the-capsized-eight/articles/faster-web-application-deployments-using-mina-instead-of-capistrano

##Realtime Analytics

http://www.mongodb.com/presentations/real-time-analytics-mongodb-webinar

http://blog.mongohq.com/first-steps-of-an-analytics-platform-with-mongodb/

http://rubayeet.wordpress.com/2013/12/29/web-analytics-using-mongodb-aggregation-framework/

http://docs.mongodb.org/ecosystem/use-cases/pre-aggregated-reports/

	echo 'require "objspace"; ObjectSpace.trace_object_allocations_start; Kernel.send(:define_method, :sup) do \|obj\| ; puts "#{ ObjectSpace.allocation_sourcefile(obj) }:#{ ObjectSpace.allocation_sourceline(obj) }"; end' > tmp/tmp-gemfile
	cat Gemfile >> tmp/tmp-gemfile
	cat tmp/tmp-gemfile > Gemfile

	# $ bundle exec irb
	# irb(main):001:0> require 'rails'
	# => true
	# irb(main):002:0> sup(Rails)
	# /Users/richardschneeman/.gem/ruby/2.4.0/gems/railties-5.0.0.1/lib/rails/initializable.rb:3

	#!/usr/bin/env ruby

	# A sneaky wrapper around Rubocop that allows you to run it only against
	# the recent changes, as opposed to the whole project. It lets you
	# enforce the style guide for new/modified code only, as opposed to
	# having to restyle everything or adding cops incrementally. It relies
	# on git to figure out which files to check.
	#
	# Here are some options you can pass in addition to the ones in rubocop:
	#

	# This simplest thing is to clone Jim's repo (https://github.com/jimweirich/gilded_rose_kata) and then
	# put this file in the root directory.

	gem 'minitest', '~> 4.7'

	require "minitest/autorun"
	require "minitest/reporters"
	MiniTest::Reporters.use! MiniTest::Reporters::SpecReporter.new

	require_relative './gilded_rose'