sdebruyn commented on code in PR #22641:
URL: https://github.com/apache/airflow/pull/22641#discussion_r1072439196
##########
airflow/models/mappedoperator.py:
##########
@@ -278,6 +278,11 @@ def __attrs_post_init__(self):
for k, v in self.partial_kwargs.items():
if k in self.template_fields:
XComArg.apply_upstream_relationship(self, v)
+ if self.partial_kwargs.get('sla'):
+ raise AirflowException(
+ f"SLAs are unsupported with mapped tasks. Please set
`sla=None` for task "
+ f"{self.task_id!r}."
+ )
Review Comment:
The issue with enforcing this, is that if you have a dag of a few tasks and
it has just one mapped task, that you cannot set an SLA in default_args
anymore. The behaviour of setting it to None would have helped there. Putting
`sla=None` in your task decorator kwargs doesn't help.
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