ZeroMQ and RabbitMQ. Some languages and databases too but those aren't nearly as important. Think 21st century 100+core CPUs loosely coupled code chunks and se

ZeroMQ and RabbitMQ. Some languages and databases too but those aren't nearly as important. Think 21st century 100+core CPUs loosely coupled code chunks and serious attention paid to monitoring the health of apps, i.e. spying on those AMQP and ZeroMQ messages.