The Queue Manager is a core component of a Scheduler system responsible for managing task queues. It receives incoming job requests, places them into appropriate queues based on priority, resource availability, or other scheduling policies, and dispatches them to available processing units according to the defined scheduling algorithm. It ensures orderly processing, prevents resource conflicts, and may handle queue states such as pending, active, paused, or completed. The Queue Manager operates by maintaining one or more data structures (queues) that hold job descriptors. It uses algorithms (e.g., First-In-First-Out, Priority-based, Shortest Job First) to determine the next job to dequeue and send for execution. It interfaces with job submission clients, the scheduler's dispatcher, and a persistence layer (if jobs are stored). It monitors queue lengths, job statuses, and may implement features like job prioritization, suspension, resumption, or cancellation. This component is typically implemented as software code and is characterized by parameters such as maximum queue length (10,000–1,000,000 tasks), task throughput (1,000–100,000 tasks/s), scheduling latency (0.1–10 ms), priority levels (8–256), memory footprint (10–100 MB), data retention (10–25 years). These values are reference ranges and must be verified for the specific model and application. The Queue Manager is a software component, so physical parameters like temperature and humidity apply to the hardware platform on which it runs. For procurement, verify model-specific values and standards with the legal manufacturer or supplier.
The Queue Manager maintains one or more queues holding job descriptors. It uses scheduling algorithms such as FIFO, priority-based, or shortest job first to select the next job for execution. It interfaces with job submission clients, the scheduler's dispatcher, and a persistence layer if jobs are stored. It monitors queue lengths and job statuses, and may support prioritization, suspension, resumption, or cancellation. The component ensures orderly processing and prevents resource conflicts by controlling the order of task dispatch.
