Apache Pulsar is a cloud-native message queue and distributed publish-subscribe messaging system. It serves as a multi-tenant event streaming platform designed to route data streams for asynchronous communication between producers and consumers.
The system distinguishes itself through geo-replication, synchronizing data across multiple geographic regions to ensure high availability and low latency. It implements a multi-tenant architecture that provides isolation and resource management for millions of independent topics.
The platform covers high-throughput data streaming and event-driven data pipelines. Its capabilities include maintaining message ordering, managing multi-tenant access, and offloading cold data to tiered storage. System administration and resource provisioning are handled via a programmatic REST API.
