@Marvin I am trying to identify why tasks called by a task are not appearing as connected in the UI; the first one shows properly but then recursive calls do not

The issue of tasks called by another task not appearing as connected in the UI can be complex and could be due to a few reasons. Here are some potential insights and steps to consider: 1. Recursive Task Calls: When tasks are called recursively, they might not always show as connected in the UI. This could be due to how the task runs are submitted and tracked. 2. Logging and State Updates: Ensure that your tasks are properly logging information and updating their states. This ensures better visibility in the UI. 3. Prefect Settings: Verify your Prefect settings, particularly those related to flow and task execution. Inconsistent settings can sometimes cause UI discrepancies. 4. Recursive Execution Example: Here's a detailed example of recursive executors being logged:

12:45:28.610 | INFO | Flow run 'intrepid-coua' - Submitted task run 'get_url-4' for execution.
   12:45:28.624 | INFO | Flow run 'intrepid-coua' - Created task run 'get_url-5' for task 'get_url'
   12:45:28.625 | INFO | Flow run 'intrepid-coua' - Submitted task run 'get_url-5' for execution.
   12:45:28.640 | INFO | Flow run 'intrepid-coua' - Created task run 'get_url-6' for task 'get_url'
   12:45:28.641 | INFO | Flow run 'intrepid-coua' - Submitted task run 'get_url-6' for execution.

This is an indication that tasks are being generated and executed recursively, and they should ideally reflect in the UI. 5. Github Issues: - Feeding Data After EOF: There are related issues where logs show attempts to feed data after EOF, which could indicate logging issues (__assert not self._eof, 'feed_data after feed_eof'__). This might affect how recursive tasks are visualized. - Test Failures: Some test failures show connections not finishing in time, which could be analogous to task visibility failures in the UI. For more detailed insights and specific fixes, consider checking out these links: - Prefect Documentation: https://docs.prefect.io/latest/tutorial/tasks/ - Prefect Server & UI Configuration: https://docs.prefect.io/latest/guides/settings/ - Migration Guide: https://docs.prefect.io/latest/guides/migration-guide/ Finally, if the issue persists, it might be worth raising it on the Prefect GitHub issues page.

Is it possible to manually specify task connections?

Yes, it is possible to manually specify task connections in Prefect. You can explicitly define dependencies between tasks to ensure they are correctly shown as connected in the UI. Here is how you can do it: ### Setting Upstream Dependencies To manually set task dependencies (i.e., specifying that one task should run after another), you can use the

set_upstream

method. Here's an example:

python
from prefect import task, Flow

@task
def task_A():
    pass

@task
def task_B():
    pass

@task
def task_C():
    pass

with Flow("manual dependencies") as flow:
    a = task_A()
    b = task_B()
    c = task_C()

    # Manually setting task dependencies
    b.set_upstream(a)
    c.set_upstream(b)

# Register/Run Flow as per requirements
flow.register(project_name="your-project")
flow.run()

### Additional Resources - Specifying Upstream Dependencies - Task Dependencies in Prefect By manually setting these dependencies, you will ensure that the UI properly reflects the connections between your tasks. For more information, you can also check the GitHub issue regarding manually specifying task connections. If you have further specific questions or need more help, referring to these resources or raising an issue might be helpful.