Heartbeat Protocol

The Heartbeat Protocol is a method used in computer systems and networks to ensure that different parts of a system are active and functioning properly. One component periodically sends a simple message, called a "heartbeat," to another component. If the recipient receives the heartbeat regularly, it knows everything is okay. If the heartbeat stops, it indicates a potential problem or failure, prompting further action to address the issue. This process helps maintain system reliability, fault detection, and quick response to outages or malfunctions.