A (Very) Brief History of Erlang

Erlang, a language developed in 1986 for telecommunications, is renowned for its ability to handle massive scaling, ultra-high concurrency, and real-time execution, making it ideal for communication systems requiring high availability like RabbitMQ and WhatsApp. Its unique approach encourages letting processes fail, allowing small, isolated code chunks to be managed by supervisor systems that reboot crashed processes, enhancing resilience and uptime. Erlang's concurrency is managed through its BEAM virtual machine, which handles lightweight processes efficiently, and its fault-tolerant design includes supervision trees that focus on restarting processes rather than traditional error handling. The language's capability for hot swapping live code without stopping the VM makes it particularly suitable for applications needing constant uptime, such as messaging apps and databases like CouchDB and Riak. As Ericsson's decision to open-source Erlang in 1998 expanded its use beyond telecommunications, developers today explore its potential in IoT backends and integrating Network APIs, engaging with the Vonage community for further learning and collaboration.