This is why the definition of Big Data as “data too big for traditional technologies like RDBMS” is a Big Load.
Jeremy Cole, database administration team manager at Twitter, told attendees that the micro-blogging network uses a commercial instance of MySQL because there are "some features we desperately need to manage the scale we have and to respond to problems in production".
Cole revealed that Twitter's MySQL database handles some huge numbers — three million new rows per day, the storage of 400 million tweets per day replicated four times over — but it is managed by a team of only six full-time administrators and a sole MySQL developer.
Twitter, PayPal reveal database performance - Software - Technology - News - iTnews.com.au
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