Hello, community, our prefect flow run gets the error of no heartbeat from time to time. It seems retrying, but actually nothing happen, the normal 20 mins run gets stuck there for hours. Any idea how to fix that?

Hi @Hui Zheng - task runs usually fail to send heartbeats when they're in resource-starved environments or when the process has been exited prematurely (something like calling

sys.exit()

) - either of those sound like possible scenarios for you?

@nicholas thank you. I think it could be resource-starved environments. I am fine with runs fail to send heartbeats. My concern is that the retrying seems not working.

Thank you Hui!

@Dylan @Kyle Moon-Wright Hello, hope all is well.. this This

failed-retry-when-no-heartbeat

issue kept coming up. I would like to work with you to get to the bottom of it.

<https://cloud.prefect.io/semios/flow-run/72082fcb-213b-4cc2-8d6e-d2a0b345cffe>
<https://cloud.prefect.io/semios/flow-run/8bf9505f-5c0f-47a1-8cc4-cd9393d17bc5>
<https://cloud.prefect.io/semios/flow-run/c85d6ad6-0074-4cdb-9a12-5b02ab100a11>

Hey @Hui Zheng, I see that this flow is registered with Core version

0.13.6

. Would it be possible for you to upgrade to the current version (

0.13.15

) and see if this behavior still occurs?

for sure, I could do that.

ok great, please do 👍