WhatsApp Architecture – Erlang


Interesting read over on High Scalability around WhatsApp. “hot-loading”- nice.  Some good lessons at the end of the article:

Measure. Remove Bottlenecks. Test. Repeat.

Erlang’s concurrency implementation is the Actor model – is the actor model a key part of the WhatsApp architecture success?

Erlang (/ˈɜrlæŋ/ ER-lang) is a general-purpose concurrent, garbage-collected programming language and runtime system. The sequential subset of Erlang is a functional language, with eager evaluation, single assignment, and dynamic typing. It was designed by Ericsson to support distributed, fault-tolerant, soft-real-time, non-stop applications. It supports hot swapping, so that code can be changed without stopping a system

 

~ by mdavey on February 27, 2014.

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