@Marvin how can I stop a timeout from occurring in an on_completion hook?

So you’re dealing with a timeout in an

on_completion

hook. Got it. Timeout issues can be tricky, but I’ll look up how to manage that for you. Before diving in, could you let me know which version of Prefect you’re using? That’ll help me fetch the most accurate information for you.

@Marvin Prefect 2.x

File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/engine.py", line 2367, in _run_task_hooks
    await from_async.call_in_new_thread(
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/_internal/concurrency/calls.py", line 327, in aresult
    return await asyncio.wrap_future(self.future)
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/_internal/concurrency/calls.py", line 352, in _run_sync
    result = self.fn(*self.args, **self.kwargs)
  File "/app/src/python/studio/backend/py_image.binary.runfiles/strap/src/python/prefect_utils/prompt.py", line 171, in progress_callback
    output = state.result()
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/client/schemas/objects.py", line 244, in result
    return get_state_result(self, raise_on_failure=raise_on_failure, fetch=fetch)
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/states.py", line 71, in get_state_result
    return _get_state_result(state, raise_on_failure=raise_on_failure)
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/utilities/asyncutils.py", line 311, in coroutine_wrapper
    return call()
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/_internal/concurrency/calls.py", line 432, in __call__
    return self.result()
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/_internal/concurrency/calls.py", line 318, in result
    return self.future.result(timeout=timeout)
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/_internal/concurrency/calls.py", line 179, in result
    return self.__get_result()
  File "/usr/lib/python3.10/concurrent/futures/_base.py", line 403, in __get_result
    raise self._exception
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/_internal/concurrency/calls.py", line 389, in _run_async
    result = await coro
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/states.py", line 98, in _get_state_result
    result = await state.data.get()
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/client/utilities.py", line 98, in with_injected_client
    async with context as new_client:
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/client/orchestration.py", line 3350, in __aenter__
    self._ephemeral_lifespan = await self._exit_stack.enter_async_context(
  File "/usr/lib/python3.10/contextlib.py", line 619, in enter_async_context
    result = await _cm_type.__aenter__(cm)
  File "/usr/lib/python3.10/contextlib.py", line 199, in __aenter__
    return await anext(self.gen)
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/client/base.py", line 131, in app_lifespan_context
    await context.__aenter__()
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_asgi_lifespan/site-packages/asgi_lifespan/_manager.py", line 99, in __aenter__
    await self.startup()
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_asgi_lifespan/site-packages/asgi_lifespan/_manager.py", line 40, in startup
    await self._concurrency_backend.run_and_fail_after(
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_asgi_lifespan/site-packages/asgi_lifespan/_concurrency/asyncio.py", line 46, in run_and_fail_after
    raise TimeoutError

Your message was too long by 736 tokens - please shorten it and try again. For reference, here's your message at the allowed limit:

Prefect 2.x

``` File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/engine.py", line 2367, in _run_task_hooks await from_async.call_in_new_thread( File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/_internal/concurrency/calls.py", line 327, in aresult return await asyncio.wrap_future(self.future) File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/_internal/concurrency/calls.py", line 352, in _run_sync result = self.fn(*self.args, **self.kwargs) File "/app/src/python/studio/backend/py_image.binary.runfiles/strap/src/python/prefect_utils/prompt.py", line 171, in progress_callback output = state.result() File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/client/schemas/objects.py", line 244, in result return get_state_result(self, raise_on_failure=raise_on_failure, fetch=fetch) File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/states.py",

@Marvin Prefect 2.x

"/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/client/orchestration.py", line 3350, in __aenter__
    self._ephemeral_lifespan = await self._exit_stack.enter_async_context(
  File "/usr/lib/python3.10/contextlib.py", line 619, in enter_async_context
    result = await _cm_type.__aenter__(cm)
  File "/usr/lib/python3.10/contextlib.py", line 199, in __aenter__
    return await anext(self.gen)
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/client/base.py", line 131, in app_lifespan_context
    await context.__aenter__()
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_asgi_lifespan/site-packages/asgi_lifespan/_manager.py", line 99, in __aenter__
    await self.startup()
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_asgi_lifespan/site-packages/asgi_lifespan/_manager.py", line 40, in startup
    await self._concurrency_backend.run_and_fail_after(
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_asgi_lifespan/site-packages/asgi_lifespan/_concurrency/asyncio.py", line 46, in run_and_fail_after
    raise TimeoutError

Your message was too long by 41 tokens - please shorten it and try again. For reference, here's your message at the allowed limit:

Prefect 2.x

```"/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/client/orchestration.py", line 3350, in aenter self._ephemeral_lifespan = await self._exit_stack.enter_async_context( File "/usr/lib/python3.10/contextlib.py", line 619, in enter_async_context result = await _cm_type.__aenter__(cm) File "/usr/lib/python3.10/contextlib.py", line 199, in aenter return await anext(self.gen) File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_prefect/site-packages/prefect/client/base.py", line 131, in app_lifespan_context await context.__aenter__() File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_asgi_lifespan/site-packages/asgi_lifespan/_manager.py", line 99, in aenter await self.startup() File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_asgi_lifespan/site-packages/asgi_lifespan/_manager.py", line 40, in startup await self._concurrency_backend.run_and_fail_after( File "/app/src/python/studio/backend/py_image.binary.run

@Marvin Prefect 2.x

File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_asgi_lifespan/site-packages/asgi_lifespan/_manager.py", line 40, in startup
    await self._concurrency_backend.run_and_fail_after(
  File "/app/src/python/studio/backend/py_image.binary.runfiles/pip_deps_asgi_lifespan/site-packages/asgi_lifespan/_concurrency/asyncio.py", line 46, in run_and_fail_after
    raise TimeoutError

Got it, thanks for specifying the version and adding the code snippet. I'll look up how to handle or prevent such timeouts in an

on_completion

hook for Prefect 2.x. Let's search the Prefect 2.x documentation for relevant information.

@Marvin How do I fix this timeout error, I want it to never timeout

Well, that was a mishap. Let's try that again correctly. I'll search the Prefect 2.x documentation for relevant information on preventing timeouts or configuring timeout settings specifically for

on_completion

hooks. Based on the documentation for Prefect 2.x, it looks like there are a couple of relevant points about handling timeouts: 1. Flow Timeouts: You can specify a timeout duration for your entire flow using the

timeout_seconds

keyword argument.

python
   from prefect import flow
   import time

   @flow(timeout_seconds=3600)  # Set timeout to 1 hour
   def my_flow():
       # your flow logic here
       pass

2. Pause Timeout: If you are pausing your flow run, there’s a default timeout of one hour. However, you can specify a different timeout period using the

timeout

parameter.

python
   from prefect import task, flow, pause_flow_run

   @task
   async def my_task():
       # task logic here
       pass

   @flow
   async def my_flow():
       await my_task()
       await pause_flow_run(timeout=600)  # Set pause timeout to 600 seconds

The

on_completion

hook itself doesn’t have a built-in way to specify a timeout, but ensuring your flow and any tasks don’t exceed their defined timeouts can prevent issues. For more detailed information, you can refer to the flows section and the tasks section of the Prefect 2.x documentation. If you are encountering this issue in a different context or have more specifics, please let me know! Sources: - Prefect 2.x Flows - Prefect 2.x Tasks