Groonga CloudSearch is an Amazon CloudSearch compatible open source full text search service.
Groonga CloudSearch has the following features.
Groonga CloudSearch provides Amazon CloudSearch compatible API. You can switch between Groonga CloudSearch and Amazon CloudSearch without changing your application. It means that you can use Groonga CloudSearch for development on your computer and Amazon CloudSearch for production.
Groonga CloudSearch is an open source software. You can free to use, copy, modify Groonga CloudSearch. You can install Groonga CloudSearch on your computer and try it without fee.
See http://gcs.groonga.org/docs/install/ to install Groonga CloudSearch.
See http://gcs.groonga.org/docs/faq/
Groonga CloudSearch is released under the MIT license: