CouchDB is an excellent database, designed especially for distributed applications. To quote the official site site:
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 [...]

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Lately I’ve been working on a stock trading program that automatically trades and saves the results to a database (more details to follow in the not too distant future…)  Naturally the choice of language was ruby, and for the front end, a rails application.  Once coded, I bundled the stock trading program into the rails [...]

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