Fix task_queued_timeout not working after first DAG run #54594
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Tasks queued longer than task_queued_timeout were not being terminated by the Airflow scheduler, leading to accumulation of stale queued tasks over several days.
Root Cause:
The queued_by_job_id field was not being reset to None, which prevented the scheduler from recognizing that the task was eligible for termination due to timeout.
Fix:
Reset queued_by_job_id when rescheduling stuck tasks to ensure timeout monitoring works correctly across multiple DAG runs.