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by skorgu 5932 days ago
Cassandra is hugely biased towards making writes fast [1] and there's no indication in either Digg article that they (somehow) changed that fact in their deployment by tuning. Digg loads the complexity during the write by denormalizing but that load is on the application server not the data store.

[1] http://spyced.blogspot.com/2010/01/cassandra-05.html