elasticsearch

Open Source, Distributed, RESTful Search Engine

Elasticsearch is a distributed RESTful search engine built for the cloud. Features include: + Distributed and Highly Available Search Engine. - Each index is fully sharded with a configurable number of shards. - Each shard can have one or more replicas. - Read / Search operations performed on either one of the replica shard. + Multi Tenant with Multi Types. - Support for more than one index. - Support for more than one type per index. - Index level configuration (number of shards, index storage, ...). + Various set of APIs - HTTP RESTful API - Native Java API. - All APIs perform automatic node operation rerouting. + Document oriented - No need for upfront schema definition. - Schema can be defined per type for customization of the indexing process. + Reliable, Asynchronous Write Behind for long term persistency. + (Near) Real Time Search. + Built on top of Lucene - Each shard is a fully functional Lucene index - All the power of Lucene easily exposed through simple configuration/plugins. + Per operation consistency - Single document level operations are atomic, consistent, isolated and durable.

ruby-rails-2.3

MVC ruby based framework geared for web application development

Rails is a full-stack, open-source web framework in Ruby for writing real-world applications. Being a full-stack framework means that all layers are built to work seamlessly together. That way you don't repeat yourself and you can use a single language from top to bottom. Everything from templates to control flow to business logic is written in Ruby.