SameerMesiah97 commented on issue #59289: URL: https://github.com/apache/airflow/issues/59289#issuecomment-3678904446
@hoiekim I was able to reproduce this bug in 3.0.6 as well 3.1.5 and the main branch (which might contain fixes that have not been released). It is caused by the placeholder for a task (in this case `another = process_something`) in the task group being replaced before the placeholder for the task in the same task group immediately downsteram of it (`end = EmptyOperator`) is able to resolve it's upstream counterpart. The bug you reported is a symptom of this problem as it silently breaks trigger rule evaluation for task instances. It readily surfaces when the `"trigger_rule"` is set to `TriggerRule.NONE_FAILED_MIN_ONE_SUCCESS` and when there is a terminal task outside the task group on which the mapped tasks converge but I believe this could affect any DAG with mapped task groups structured like the one in this bug report. Anyway, I have opened a PR (#59691) that should fix this bug. Please ignore the previous PR (#59561) as it was incorrect. It has been closed now. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
