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Ruby

Counting Distinct Values With HyperLogLog
Counting distinct values is a trivial matter with small datasets, but it gets dramatically harder for streams with millions of…
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Ruby

Surrogate WebSockets Alongside Rails
ActionCable is coming to Rails 5 and brings with it the promise of using WebSockets directly in Rails. Ruby has…
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Web Dev

Kafka, Logs, and the Policy of Truth
Kafka is a distributed, partitioned, replicated commit log service. It provides the functionality of a messaging system, but with a…
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Web Dev

7 Tips for Continuously Deploying Single Page Apps
Single page apps deliver fantastically rich user experiences, and they open up an entirely different avenue for continuous deployment. Separating…
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Ruby

Alternative Service Communication Using Pub/Sub
The HTTP protocol was designed for synchronous communication between two entities — for instance, a browser requesting a stylesheet or…
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Ruby

Folding Postgres Window Functions into Rails
You’ve heard of window functions in PostgreSQL, but you aren’t quite sure what they are or how to use them.…
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