skiptomylu ChuntaoLu

create a new redis .conf file

$ cp /etc/redis/6379.conf /etc/redis/6380.conf

edit /etc/redis/6380.conf, illustrated as below

...

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

HTTP Streaming (or Chunked vs Store & Forward)

The standard way of understanding the HTTP protocol is via the request reply pattern. Each HTTP transaction consists of a finitely bounded HTTP request and a finitely bounded HTTP response.

However it's also possible for both parts of an HTTP 1.1 transaction to stream their possibly infinitely bounded data. The advantages is that the sender can send data that is beyond the sender's memory limit, and the receiver can act on

brew install gnupg21, pinentry-mac (this includes gpg-agent and pinentry)
Generate a key: $ gpg2 --gen-key
Take the defaults. Whatevs
Tell gpg-agent to use pinentry-mac:
```
$ vim ~/.gnupg/gpg-agent.conf 
```

	gem 'pg'
	group :development do
	gem 'ruby-debug'
	end
	gem 'rake', '~> 0.8.7'
	gem 'devise'
	gem 'oa-oauth', :require => 'omniauth/oauth'
	gem 'omniauth'
	gem 'haml'
	gem 'dynamic_form'

	# autoload concerns
	module YourApp
	class Application < Rails::Application
	config.autoload_paths += %W(
	#{config.root}/app/controllers/concerns
	#{config.root}/app/models/concerns
	)
	end
	end

	## Useful Collections

	def a_array
	(1..6).to_a
	end

	def a_hash
	{hello: "world", free: "of charge"}
	end

	--log_gc (Log heap samples on garbage collection for the hp2ps tool.)
	type: bool default: false
	--expose_gc (expose gc extension)
	type: bool default: false
	--max_new_space_size (max size of the new generation (in kBytes))
	type: int default: 0
	--max_old_space_size (max size of the old generation (in Mbytes))
	type: int default: 0
	--max_executable_size (max size of executable memory (in Mbytes))
	type: int default: 0