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.. _executor:SequentialExecutor:

Sequential Executor
===================

The :class:`~airflow.executors.sequential_executor.SequentialExecutor` is the default executor when you first install ``airflow``.
It is the only executor that can be used with ``sqlite`` since ``sqlite`` doesn't support multiple connections.
This executor will only run one task instance at a time. For production use case, please use other executors.