ephraimbuddy commented on a change in pull request #18897:
URL: https://github.com/apache/airflow/pull/18897#discussion_r730902244
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File path: airflow/models/dag.py
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@@ -2425,6 +2425,14 @@ def bulk_write_to_db(cls, dags: Collection["DAG"],
session=None):
)
most_recent_runs = {run.dag_id: run for run in most_recent_runs_iter}
+ # Get number of active dagruns for all dags we are processing as a
single query.
+ num_active_runs = dict(
+ session.query(DagRun.dag_id, func.count('*'))
+ .filter(DagRun.dag_id.in_(existing_dag_ids),
DagRun.state.in_([State.RUNNING, State.QUEUED]))
+ .group_by(DagRun.dag_id)
+ .all()
+ )
Review comment:
Sounds good
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