kaxil commented on a change in pull request #16182:
URL: https://github.com/apache/airflow/pull/16182#discussion_r649564351
##########
File path: airflow/jobs/scheduler_job.py
##########
@@ -1417,6 +1420,42 @@ def _clean_tis_without_dagrun(self, session):
raise
guard.commit()
+ @provide_session
+ def _missing_dag_file_cleanup(self, session: Session = None):
+ """Fails task instances and DagRuns of DAGs that no longer exist in
the dag folder/DB"""
+ states_to_check = State.unfinished - frozenset([State.NONE,
State.SHUTDOWN])
+ tis = session.query(TI).filter(TI.state.in_(states_to_check)).all()
+ missing_dags = {}
+ dag_runs = set()
+
+ for ti in tis:
+ if ti.dag_id in missing_dags:
+ ti.set_state(State.FAILED, session=session)
+ continue
+ # Dag no longer in dagbag?
+ if not self.dagbag.has_dag(ti.dag_id, session=session):
+ ti.set_state(State.FAILED, session=session)
+ dag_runs.add(ti.dag_run)
+ missing_dags[ti.dag_id] = [ti]
+ continue
+ # Dag file no longer exists?
+ if not os.path.exists(ti.dag_model.fileloc):
+ ti.set_state(State.FAILED, session=session)
+ dag_runs.add(ti.dag_run)
+ missing_dags[ti.dag_id] = [ti]
+ if missing_dags:
+ self.log.warning(
+ "The following Dags are missing, therefore the DAG's "
+ "task instances have been failed: \t\n%s",
Review comment:
```suggestion
"task instances have been set to failed: \t\n%s",
```
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