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Amazon's Dynamo

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Oct. 3rd, 2007 | 02:06 pm


"Most of these services only store and retrieve data by primary key
and do not require the complex querying and management functionality
offered by an RDBMS. This excess functionality requires expensive
hardware and highly skilled personnel for its operation, making it a
very inefficient solution. In addition, the available replication
technologies are limited and typically choose consistency over

1) Most web work is primary key.
2) Its not transactional.
3) Availability is more important then a lost data

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Comments {8}


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from: itman
date: Oct. 3rd, 2007 10:45 pm (UTC)

> I never have mentioned Big table?
Not you, they the authors of the Amazon's article. As far as I understand it, you are not among them. Correct me please, if I am wrong.

>I'd argue that there are a few of these system available right now, and I think more will be coming online (especially open source ones). Anyone running a website right now that is scaling should be figuring out how to make one of these.

I'd, too. But I am talking about publications. There are fewer publications than available systems :-)

>Put it another way, what is memcached? Its just a big one of these that happens to not be durable (yet).

Durability is an enormous challenge.

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