This document discusses data migration at scale using RabbitMQ and Spring Integration. It introduces Álvaro Videla, a developer advocate at Pivotal and co-author of RabbitMQ in Action. It then provides an overview of RabbitMQ, including that it is a multi-protocol messaging server, open source, polyglot, and written in Erlang. It also summarizes some key features of RabbitMQ such as persistent messages, publisher confirms, and dead letter exchanges.