The Cloud Message Queue Service is designed to provide a unified hosted message queue service and to temporarily store messages exchanged between products or within products. NQS is built on RabbitMQ, and product developers can apply for NQS instances as needed, leveraging cloud queue services to easily exchange data between application components of different tasks. In addition, NQS collaborates closely with NetEase's existing cloud computing services to facilitate the construction of basic services required by the products. The core value of NQS is to help developers rapidly build an easy-to-operate, high-performance, stable, and secure message queue service that meets the requirements of the production environment, so as to make messages exchanged between applications or components within the same application, and to make decoupled systems dependent. The message queue service provides the queue mode and the publish-subscribe mode, and allows of functions like RPC and such protocols as AMQP, MQTT, HTTPS, STOMP, and WebSockets. It seamlessly integrates NetEase's basic services, provides monitoring and alarm functions, and makes operation and maintenance easier.