Hi Is it possible to increase max scheduled flows in prefect

Question

Hi Is it possible to increase max scheduled flows in prefect I found max scheduled runs per flow parameter but it seems that is is only available in prefect server not prefect

Anna Geller · Answer

That s correct for Prefect Cloud this is managed globally so you don t need to worry about it Can you explain the problem you face Why would you want to adjust it

Anna Geller · Answer

By default this is The scheduler periodically queries for flows with active schedules and creates flow runs corresponding to the next 10 scheduled start times of the flow but if you want to limit the number of concurrent runs for a specific flow or task you can use

Andrey Vinogradov · Answer

I use Prefect installed on my server not Prefect Cloud and the problem is that that limit is too small Is it possible to increase it

Andrey Vinogradov · Answer

As I understand it is possible in Prefect Server not in regular Prefect

Anna Geller · Answer

there is Prefect Core the main package allowing building flows and running them locally then there is also Prefect Cloud or Prefect Server that you may use for the backend Which of those did you install Concurrency limits are only for Prefect Cloud in Prefect 2 0 max scheduled runs per flow is only for Prefect Server and this is a global setting allowing you to now overwhelm your Prefect Server btw if you re just getting started you may use <https discourse prefect io t should i start with prefect 2 0 orion skipping prefect 1 0 544|Prefect 2 0> instead

Anna Geller · Answer

gt limit is too small what are you trying to do explaining your use case would help immensely

Andrey Vinogradov · Answer

I installed Prefect with ```pip install prefect``` and didn t do anything else

Andrey Vinogradov · Answer

I mean I haven t installed anything else as the backend

Andrey Vinogradov · Answer

We have ml training flow that we run in prefect by schedule but because of this limit we should manually restart schedule for this flow

Andrey Vinogradov · Answer

We want to plan more than 10 runs for this flow in schedule

Anna Geller · Answer

gotcha I think this docs page will clarify your confusion <https docs prefect io orchestration getting started set up html> you don t need to worry about the 10 runs It s just internal detail of the scheduler service you may run hundreds of flow runs simultaneously

Andrey Vinogradov · Answer

Ok thank you

Andrey Vinogradov · Answer

< Anna Geller> in fact we need run this flow not at the same time but scheduled So for example we want to plan to run it every 2 hours Will it work

Kevin Kho · Answer

Yes it will but it s really recommended to either use Prefect Cloud or Server instead of Prefect Core alone In core you have to leave the processes running for each Flow Cloud has 20000 task runs free every month which is more than enough to get started