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https://issues.apache.org/jira/browse/AIRFLOW-1059?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alex Guziel resolved AIRFLOW-1059.
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Resolution: Fixed
Fix Version/s: 1.9.0
Issue resolved by pull request #2205
[https://github.com/apache/incubator-airflow/pull/2205]
> Reset_state_for_orphaned_task should operate in batch for the scheduler
> -----------------------------------------------------------------------
>
> Key: AIRFLOW-1059
> URL: https://issues.apache.org/jira/browse/AIRFLOW-1059
> Project: Apache Airflow
> Issue Type: Improvement
> Reporter: Alex Guziel
> Assignee: Alex Guziel
> Fix For: 1.9.0
>
>
> Scheduler startup is very slow due to resetting state making a query for each
> dag run. We should be able to do this in a constant number of queries which
> will increase scheduler startup time significantly.
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