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https://issues.apache.org/jira/browse/AIRFLOW-1665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16233659#comment-16233659
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Vasanth Kumar commented on AIRFLOW-1665:
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Submitted proposed fix: https://github.com/apache/incubator-airflow/pull/2744
> Airflow webserver/scheduler don't handle database disconnects (mysql)
> ---------------------------------------------------------------------
>
> Key: AIRFLOW-1665
> URL: https://issues.apache.org/jira/browse/AIRFLOW-1665
> Project: Apache Airflow
> Issue Type: Bug
> Affects Versions: Airflow 1.8
> Reporter: Vasanth Kumar
> Priority: Major
> Labels: database, reconnect
>
> Airflow webserver & scheduler don't handle database disconnects. The process
> appear to error out and either exit or are left in an off state. This was
> observed when using mysql.
> I don't see any database reconnect configuration or code.
> Stack tace for scheduler:
> File "...../MySQLdb/connections.py", line 204, in __init__
> super(Connection, self).__init__(*args, **kwargs2)
> sqlalchemy.exc.OperationalError: (_mysql_exceptions.OperationalError) (2002,
> "Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)")
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