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https://issues.apache.org/jira/browse/AIRFLOW-3891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ash Berlin-Taylor resolved AIRFLOW-3891.
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       Resolution: Fixed
    Fix Version/s:     (was: 1.10.3)

Was actually fixed in 1.10.2 but got removed by mistake in master. So closing 
this issue as no fix version.

> Disable unused flask-sqlalchemy modification tracking form webserver
> --------------------------------------------------------------------
>
>                 Key: AIRFLOW-3891
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-3891
>             Project: Apache Airflow
>          Issue Type: Improvement
>            Reporter: Josh Carp
>            Assignee: Josh Carp
>            Priority: Trivial
>
> By default, flask-sqlalchemy tracks model changes for its event system, which 
> adds some overhead. Since I don't think we're using the flask-sqlalchemy 
> event system, we should be able to turn off modification tracking and improve 
> performance.



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