mishikaSingh commented on issue #3650: [AIRFLOW-2703] exceptions from scheduler's heartbeat is handled so that scheduler does not crash URL: https://github.com/apache/incubator-airflow/pull/3650#issuecomment-424680530 @ashb As we are handling only OperationalError so this will handle only "Exception raised for errors that are related to the database's operation and not necessarily under the control of the programmer, e.g. an unexpected disconnect occurs, the data source name is not found, a transaction could not be processed, a memory allocation error occurred during processing, etc." we think that these intermittent issues should not bring the whole scheduler down. Any other DB related issue will bring the scheduler down as they will come under different class . |__Error |__InterfaceError |__DatabaseError |__DataError |___OperationalError_ |__IntegrityError |__InternalError |__ProgrammingError |__NotSupportedError
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