In Prefect, a work pool acts as a coordination mechanism between deployments and workers, similar to the "topics" used in pub/sub or message-based systems. Here's how it works:
1.
Coordination: Work pools serve as a known channel to coordinate deployments with workers. By associating a deployment with a work pool, you can manage which worker will execute the flow runs.
2.
Flexibility: You can easily switch a deployment's work pool to change the worker executing the runs. This feature is useful for promoting runs through different environments or debugging locally.
3.
Concurrency Control: Users can control how many runs a work pool allows to run concurrently. These settings can be adjusted anytime, and workers will only see flow runs that match their specific pool.
4.
Optimization: Different types of work pools are optimized for various use cases, allowing you to choose the best fit for your infrastructure and workflow requirements.
For more detailed information, you can refer to the
Prefect Work Pools Documentation.