Abstract: The enterprise-level instant messaging system enables collaboration and communication among employees, while ensuring information security and supporting real-time analysis and online data processing. Additionally, it offers personalized services, making it a highly sought-after solution with promising application prospects in the market. The system is designed on a distributed architecture with distinct layers - access layer, logic layer, and storage layer. The access layer acts as a gateway for clients providing data conversion and routing selection functionality. The logical layer is divided into independent microservices that are deployed on the cloud in a containerized manner, while the storage layer provides persistent data storage. Furthermore, the system employs an optimized message ID generation algorithm to ensure unique and ordered message sequence numbers across different user namespaces, thus improving system availability through strategies such as distributor batch acquisition and double buffering. With its core function of message delivery fully realized, this system achieves high reliability and availability through its robust architecture design, rapid service deployment, and scalable on-demand features - providing valuable insights for the construction of cloud-native instant messaging systems.
