dstandish commented on code in PR #46554:
URL: https://github.com/apache/airflow/pull/46554#discussion_r1952703142
##########
airflow/models/backfill.py:
##########
@@ -432,3 +435,31 @@ def _create_backfill(
info,
)
return br
+
+
+def clear_run_if_dagrun_exists(dag, info, reprocess_behavior, backfill_id,
session):
+ from airflow.models import DagRun
+
+ dr = session.scalar(
+ statement=_get_latest_dag_run_row_query(info, session),
+ )
+ if dr:
+ if dr.state in {DagRunState.SUCCESS, DagRunState.FAILED} and
reprocess_behavior in {
+ ReprocessBehavior.COMPLETED,
+ ReprocessBehavior.FAILED,
+ }:
+ dag.clear(
+ run_id=dr.run_id,
+ dag_run_state=DagRunState.QUEUED,
+ session=session,
+ confirm_prompt=False,
+ dry_run=False,
+ )
+ # updating backfill id and run_type in dag_run table
+ update_backfill_id = (
+ update(DagRun)
+ .where(DagRun.logical_date == info.logical_date)
+ .values(backfill_id=backfill_id, run_type=DagRunType.BACKFILL_JOB)
+ )
+ session.execute(update_backfill_id)
Review Comment:
if you clear, then immediately it will be scheduled.
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