LightCloud Library for Ruby
This is a library for accessing LightCloud systems through Ruby.
Background
LightCloud is a distributed key-value stored open-sourced by Plurk. The official website which includes benchmarks, design specs, and more can be viewed at the following URL:
opensource.plurk.com/LightCloud/
Usage
You can use it with class methods:
require 'rubygems'
require 'lightcloud'
LIGHT_CLOUD = {
'lookup1_A' => ['127.0.0.1:41401', '127.0.0.1:41402'],
'storage1_A' => ['192.168.0.2:51401', '192.168.0.2:51402']
}
lookup_nodes, storage_nodes = LightCloud.generate_nodes(LIGHT_CLOUD)
LightCloud.init(lookup_nodes, storage_nodes)
LightCloud.set("hello", "world")
print LightCloud.get("hello") # => world
LightCloud.delete("hello")
print LightCloud.get("hello") # => nil
Or you can also use it with instances:
require 'rubygems'
require 'lightcloud'
LIGHT_CLOUD = {
'lookup1_A' => ['127.0.0.1:41401', '127.0.0.1:41402'],
'storage1_A' => ['192.168.0.2:51401', '192.168.0.2:51402']
}
lookup_nodes, storage_nodes = LightCloud.generate_nodes(LIGHT_CLOUD)
cloud = LightCloud.new(lookup_nodes, storage_nodes)
cloud.set("hello", "world")
print cloud.get("hello") # => world
cloud.delete("hello")
print cloud.get("hello") # => nil
Installation
sudo gem install mitchellh-lightcloud
Known Issues / To-Do
The python library actually caches the get/set values in a thread-local hash table. This library doesn’t do this yet but I’m working on adding this in now.