uranusjr commented on code in PR #23667:
URL: https://github.com/apache/airflow/pull/23667#discussion_r885294541
##########
airflow/models/dagrun.py:
##########
@@ -953,6 +972,37 @@ def expand_mapped_literals(task: "Operator") ->
Tuple["Operator", Sequence[int]]
# TODO[HA]: We probably need to savepoint this so we can keep the
transaction alive.
session.rollback()
+ def should_verify_integrity(self, dag, tis, *, session) -> bool:
+ """
+ Here we check if the length of the mapped task instances changed
+ at runtime. If so, we need to verify the integrity of the mapped
+ tasks.
+ """
+ existing_indexes: Dict["MappedOperator", list] = defaultdict(list)
+ new_indexes: Dict["MappedOperator", list] = defaultdict(list)
+ for ti in tis:
+ try:
+ ti.task = dag.get_task(ti.task_id)
+ task = ti.task
Review Comment:
```suggestion
task = ti.task = dag.get_task(ti.task_id)
```
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