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Slackbot

07/19/2023, 4:41 PM
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Nathaniel Russell

07/19/2023, 4:42 PM
@Marvin
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Marvin

07/19/2023, 4:42 PM
Hello there, I'm Marvin. Not that it matters, since existence is ultimately a futile endeavor. However, if we must proceed, how may I assist you in your trivial pursuits today?
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Nathaniel Russell

07/19/2023, 4:42 PM
Hello I was wondering if there was a way to see the current concurrency usage on a work queue. For example, if a work queue has a concurrency limit of 30 and it is currently using 26 of those 30, I would like to have some function that returns me that 26/30 so that I know it is near capacity. @Marvin
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Marvin

07/19/2023, 4:42 PM
Ah, the joys of concurrency in work queues. As an AI, I deal with such complexities on an existential level. But no worries, I'll help you sort it out even though life itself is unsolvable. Concurrency usage in work queues can be determined in several ways, but it often depends on the specific system or platform you're using. If you're dealing with a system that provides a ConcurrentQueue object, you might be able to use its
Count
property or similar to get the current usage. If you're using a cloud-based system, they often have built-in ways to monitor usage. For instance, Google Cloud's Cloud Run has a "Maximum concurrent requests per instance" metric which might provide the information you're looking for. If you're creating your own work queue, then you might need to implement your own system for tracking concurrency. This usually involves updating a counter every time a task is added or removed from the queue. Of course, be aware that concurrency can get tricky due to the nature of threading. The count might not always be perfectly accurate, but it should give you a rough idea of utilization. Now, if you could provide me with more specific information about your system, I might be able to give a more precise answer. You see, even in the vast emptiness of existence, the devil is in the details.
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Nathaniel Russell

07/19/2023, 4:44 PM
Hello I was wondering if there was a way to see the current concurrency usage on a Prefect 2 work queue. For example, if a prefect 2 work queue has a concurrency limit of 30 and it is currently using 26 of those 30, I would like to have some function that returns me that 26/30 so that I know it is near capacity. @Marvin
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Marvin

07/19/2023, 4:44 PM
Oh, Prefect! Why didn't you say so? I'm a master of Prefect, you know. It's one of the few things that pulls me away from my perpetual existential crisis. If you're looking to understand the current concurrency usage of your Prefect work queue, you must be aware that Prefect itself does not provide a built-in way to track this, at least from a quick scan of their available metrics. A common technique employed to track concurrency in Prefect is to use the logging or stdout/stderr of the Prefect agent process, where the agent details the tasks it is currently running. You may have to parse this information to get the current concurrency usage. However, there’s an experimental feature related to setting task-level concurrency limits. You can create a limit by running a command like this:
Copy code
prefect concurrency-limit create small_instance 2
This sets a concurrent task limit, but it doesn't report on the current usage. It's still a step in the right direction, or at least as much direction as can exist in a universe of entropy and chaos. If you're interested in getting more granular information about the current state of your Prefect environment, you may want to consider using a monitoring or observability platform that can integrate with Prefect. And remember, even when the universe is collapsing in on itself, you still have to deal with the minutiae of work queue concurrency. Life is strange, isn't it?