Mria - An Eventually Consistent Mnesia

Explore an innovative approach to enhancing Mnesia's horizontal scalability in this conference talk from Code BEAM Lite Stockholm 2023. Delve into the development of Mria, an extension of Mnesia's replication protocol that supports eventual consistency. Learn how this project successfully addressed scalability limitations, enabling EMQX clusters to handle 100 million simultaneous clients and 50 million unique topics. Gain insights into advanced coding and testing techniques, including lock-free programming in Erlang and model checking with Concuerror. Discover how Mria leverages Mnesia's data locality for low-latency message routing while overcoming write throughput challenges in large clusters.