1,000,000 daily users and no cache
Online games pose a few interesting challenges on their backend: A single user generates one http call every few seconds and the balance between data read and write is close to 50/50 which makes the use of a write through cache or other common scaling approaches less effective. Starting from a rather classic rails application as the traffic grew we gradually changed it in order to meet the require
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Elements of Statistical Learning: data mining, inference, and prediction. 2nd Edition.
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