Apache Pulsar

Apache Pulsar is an open-source messaging system designed to send and receive large volumes of data quickly and reliably. Think of it as a modern postal service for digital information, where messages are sent from producers (senders) to consumers (receivers). Pulsar supports high scalability, real-time processing, and durability, making it suitable for applications like online banking, monitoring systems, and data pipelines. Its architecture separates storage and messaging layers, ensuring efficient performance even at massive scales, and it can handle millions of messages per second with low latency.