In Pictures: 9 open source Big Data technologies to watch

With more and more companies storing more and more data and hoping to leverage it for actionable insights, Big Data is making a big splash these days. Open source technology is at the core of most Big Data initiatives. Here are nine key open source Big Data technologies to keep an eye on.

Apache CouchDB

Apache CouchDB is still another open source NoSQL database. It uses JSON to store data, JavaScript as its query language and MapReduce and HTTP for an API. CouchDB was created in 2005 by former IBM Lotus Notes developer Damien Katz as a storage system for a large scale object database. The BBC uses CouchDB for its dynamic content platforms, while Credit Suisse's commodities department uses it to store configuration details for its Python market data framework. CouchDB is available under the Apache License 2.0.

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