Hi Team I m trying Prefect following the guide doc and found

Question

Hi Team I m trying Prefect following the guide doc and found that there is a few seconds latency between triggering a flow to run via CLI prefect run server name hello flow and the agent runs the flow Is that expected Thanks

Chris White · Answer

Hi Alfie yup that s expected the agent polls on a backoff so if it s not finding work it will sleep for up to 10 seconds before polling again

Chris White · Answer

also depending on the type of agent and the execution environment the infrastructure setup for your flow could take a little while as well e g a k8s agent running a flow with a DaskKubernetes Environment could add some additional latency

Alfie · Answer

thanks Chris I need a scheduled flow and want it to run at exact 0 min 0 second of every hour is it possible to make it happen

Chris White · Answer

is it OK if the flow starts a few seconds early

Chris White · Answer

actually yes I know how to achieve this

Alfie · Answer

No I need to use the start time for querying a db Maybe another way is to pass the time as a parameter

Alfie · Answer

what s the way

Chris White · Answer

before I jump there it sounds like you just need to use the `scheduled start time` field in context to construct your query This field always has the precision of your schedule even if your flow begins a few seconds late

Chris White · Answer

you can access `prefect context scheduled start time` from within any task state handler

Alfie · Answer

that sounds good I can try that slightly smiling face

Alfie · Answer

Thanks

Chris White · Answer

awesome anytime let us know if you run into any roadblocks

Alfie · Answer

cool thanks