What is "in a supervisor system?

In a supervisor system, a central program monitors and controls a set of other processes, ensuring they are running as expected and automatically restarting them if they fail. Key aspects include:

• Process Management: Supervisors handle the lifecycle of processes, including starting, stopping, and restarting them.
• Monitoring: They continuously monitor the health and status of managed processes, often using techniques like heartbeats or resource usage checks.
• Automatic Restart: A critical feature is the automatic restarting of failed processes, contributing to system resilience and uptime.
• Configuration: Supervisors use configuration files to define which processes to manage, their dependencies, and restart policies.
• Event Logging: They typically log events related to process state changes, errors, and restarts, aiding in debugging and troubleshooting.
• Remote Control: Many supervisors offer remote control interfaces, allowing administrators to manage processes from a centralized location. This enables features such as Remote%20Process%20Management.
• Dependency Management: Some supervisor systems allow defining dependencies between processes, ensuring they are started in the correct order.
• Resource Limits: Supervisors can enforce resource limits on managed processes, preventing them from consuming excessive resources like CPU or memory.
• User Interface (UI): Some supervisors have a web-based User%20Interface for easy monitoring and control.