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https://issues.apache.org/jira/browse/AIRFLOW-1464?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jarek Potiuk resolved AIRFLOW-1464.
-----------------------------------
Resolution: Fixed
Fix Version/s: 2.0.0
1.10.4
> 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
> Assignee: Chao-Han Tsai
> Priority: Major
> Fix For: 1.10.4, 2.0.0
>
>
> 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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