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My impression of DynamoDB before attending a Amazon DynamoDB for Developers talk is that it’s the usual quality service produced by Amazon: simple, fast, scalable, geographically redundant, expensive enough to make you think twice about using it, and delightfully NoOp.
After the talk my impression has become more nuanced. The quality impression still stands. Look at the forums and you’ll see the typical issues every product has, but no real surprises. And as a SimpleDB++, DynamoDB seems to have avoided second system syndrome and produced a more elegant design.
What was surprising is how un-cloudy DynamoDB appears to be. The cloud pillars of pay for what you use and quick elastic response to bursty traffic have been abandoned, for some understandable reasons, but the result is you really have to consider your use cases before making DynamoDB the default choice.
Here are some of my impressions from the talk...
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