ferruzzi opened a new pull request, #61153:
URL: https://github.com/apache/airflow/pull/61153
Add support for the Callback workload to be run in the executors. Other
executors will need to be updated before they can support the workload, but I
tried to make it as non-invasive as I could.
This is the bulk of the work required to allow synchronous callbacks to be
used in DeadlineAlerts. For example, this now works in LocalExecutor:
```python
with DAG(
dag_id="sync_deadline",
deadline=DeadlineAlert(
reference=DeadlineReference.FIXED_DATETIME(datetime(1980, 8, 10, 2)),
interval=timedelta(0),
callback=SyncCallback(
SlackWebhookNotifier,
{"text": "Sync Callback; Alert should trigger immediately!"},
)
)
):
EmptyOperator(task_id='empty_task')
```
Co-author: Builds on work handed off by @seanghaeli and research from
@ramitkataria; if I did this right then they should be getting co-author
credits, I think?
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Cline (Claude Sonnet 4.5) was used for debugging and suggesting some unit
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