Running a very basic flow in Prefect Cloud with prefect agen

Question

Running a very basic flow in Prefect Cloud with prefect agent deployed in EKS In our logging infra I m getting `ERROR prefect infrastructure process Process turquoise woodlouse exited with status code 9` No more messaging beyond that In Prefect Cloud UI the flow runs indefinitely and doesn t show this log message level set to DEBUG Anyone familiar with exit code 9 Can t find any docs

Garren Moore · Answer

cc < Taylor Curran>

Taylor Curran · Answer

Hey Garren could you share what docs you are working off of

Garren Moore · Answer

I can t find any docs on this

Ryan Peden · Answer

I believe exit 9 tells us a Python subprocess was killed by the operating system usually due to running out of memory

Ryan Peden · Answer

The Python subprocess docs explain a little more here <https docs python org 3 library subprocess html subprocess CompletedProcess returncode> So 9 is saying the process was terminated by Posix signal 9 i e SIGKILL

Ryan Peden · Answer

I think that explains why you re seeing that logged via the agent but not seeing anything in the cloud UI SIGKILL terminates the flow process before it can report anything is wrong

Garren Moore · Answer

face palm thank you < Ryan Peden> it does explain the disconnect The pod itself however doesn t crash with OOM thinking face will look into it

Ryan Peden · Answer

It might be because it s happening to a subprocess IIRC you will only get OOM for a pod if a container s init process gets terminated by the kernel s OOM killer So in this case perhaps the subprocess running the flow gets terminated by the Linux kernel after which the agent and the pod it is a part of continue running

Zanie · Answer

<https github com PrefectHQ prefect pull 7070> slightly smiling face

Garren Moore · Answer

< Zanie> ok hand