Creating Work Queues in a Kubernetes Work Pool can be done in Prefect and gives you advanced control over how your flow runs are managed and executed. Work queues allow for prioritization and concurrency control of tasks. Here's how you can set them up:
### For Prefect 2.x and 3.x
1.
Default Work Queue: Each work pool starts with a default work queue. All tasks will be sent here unless otherwise specified.
2.
Creating Additional Queues: You can add additional queues to a work pool. This allows you to have more control over task prioritization and concurrency. Each queue is defined by:
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Priority: A numerical priority where lower numbers have higher priority.
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Concurrency Limits: Each queue can have specific limits, but they are also subject to the global concurrency limit of the work pool.
3.
Work Queue Status: The status of the queue can be:
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READY: If polled by a worker recently.
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PAUSED: If no new work is accepted until unpaused.
4.
Managing via CLI or UI:
- You can manage and configure these queues via the Prefect UI, CLI commands, REST API, or a Terraform provider for Prefect Cloud.
Here are links to the specific sections in the documentation where you can find additional details:
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Prefect 2.x Work Pools
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Prefect 3.x Work Pools
Remember, managing work queues effectively can make your task execution more predictable and organized. Think of them as queues at a supermarket check-out: you get to decide which line tasks should join and how quickly a cashier will see them. Make sure to adjust these settings based on the priority and criticality of your flows.