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https://issues.apache.org/jira/browse/AIRFLOW-3306?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16684086#comment-16684086
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ASF GitHub Bot commented on AIRFLOW-3306:
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ashb closed pull request #4146: [AIRFLOW-3306] Disable flask-sqlalchemy
modification tracking.
URL: https://github.com/apache/incubator-airflow/pull/4146
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diff --git a/airflow/www_rbac/app.py b/airflow/www_rbac/app.py
index e7f5a1e976..69b5acbd2b 100644
--- a/airflow/www_rbac/app.py
+++ b/airflow/www_rbac/app.py
@@ -50,6 +50,7 @@ def create_app(config=None, session=None, testing=False,
app_name="Airflow"):
airflow_home_path = conf.get('core', 'AIRFLOW_HOME')
webserver_config_path = airflow_home_path + '/webserver_config.py'
app.config.from_pyfile(webserver_config_path, silent=True)
+ app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
app.config['APP_NAME'] = app_name
app.config['TESTING'] = testing
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> Disable unused flask-sqlalchemy modification tracking
> -----------------------------------------------------
>
> Key: AIRFLOW-3306
> URL: https://issues.apache.org/jira/browse/AIRFLOW-3306
> Project: Apache Airflow
> Issue Type: Bug
> 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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