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Tim Strehle’s links and thoughts on Web apps, managing software development and Digital Asset Management, since 2002.
2007-08-06

MegaData

Joe Gregorio - ETech '07 Summary - Part 2 - MegaData:

"If you want to scale to the petabyte level, or the billion requests a day, you need to be:

Distributed
The data has to be distributed across multiple machines.
Joinless
No joins, and no referential integrity, at least at the data store level.
De-Normalized
No one said this explicily, but I presume there is a lot of de-normalization going on if you are avoiding joins.
Transcationless
No transactions

Those constraints represent something fundamentally different from a relational database."

Mon, 06 Aug 2007 09:01:07 +0000