CouchDB

http://incubator.apache.org/couchdb/

From their wiki:

Apache CouchDB is a distributed, fault-tolerant and schema-free document-oriented database accessible via a RESTful HTTP/JSON API. Among other features, it provides robust, incremental replication with bi-directional conflict detection and resolution, and is queryable and indexable using a table-oriented view engine with JavaScript acting as the default view definition language..

What CouchDB is

• A document database server, accessible via a RESTful JSON API.
• Ad-hoc and schema-free with a flat address space.
• Distributed, featuring robust, incremental replication with bi-directional conflict detection and management.
• Query-able and index-able, featuring a table oriented reporting engine that uses Javascript as a query language.
• written in Erlang, so scalable, fast, and non-trivial to install

What it is not

• A relational database.
• A replacement for relational databases.
• An object-oriented database. Or more specifically, meant to function as a seamless persistence layer for an OO programming language.

CouchDB and perl

Getting started with Perl

-- Contributors: ArthurClemens, RafaelAlvarez

Discussion

Updated the links to point to the apache project. Bumping the topic, as it may be of interest to somebody.

-- RafaelAlvarez - 16 Sep 2008

While I have the Erlang book on my to-read stack, every time i look at CouchDB, I backaway from using it with TWiki simply because it would add alot more complexity to install and manage. of course, its trivial if you're using Debian, so

-- SvenDowideit - 16 Sep 2008