Henry Sun has 4 years of experience designing highly distributed systems in Erlang at WhatsApp where he works on the distributed storage system that underlies WhatsApp messaging and WhatsApp Channels. During this time, he built and maintains WARaft, an Erlang implementation of the RAFT consensus algorithm geared towards the development of strongly consistent distributed storage solutions in Erlang. Previously, Henry Sun studied Computer Science at Caltech where he did research on compilers and operating systems design.
Audience: Intermediate
One of the most difficult problems in distributed computing is consensus, getting participants to a distributed computation to agree. RAFT is a distributed consensus algorithm built around the simple property that no group can simultaneously have two simple majorities.
Join me in learning about RAFT, how it can be used to build databases, and the decision decisions we made when scaling WARaft, WhatsApp’s implementation of RAFT in Erlang, to support a message database for 2B+ users.
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