Edgar Rodriguez created AIRFLOW-1464:
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Summary: Improve performance on getting dag run tis in backfill job
Key: AIRFLOW-1464
URL: https://issues.apache.org/jira/browse/AIRFLOW-1464
Project: Apache Airflow
Issue Type: Improvement
Components: backfill
Reporter: Edgar Rodriguez
Improve the way task instances are retrieved, using batch query on TIs.
The following code snippet needs to be improved:
{code}
for ti in dag_run.get_task_instances():
# all tasks part of the backfill are scheduled to run
if ti.state == State.NONE:
ti.set_state(State.SCHEDULED, session=session)
{code}
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