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.. _howto/operator:DatabricksSubmitRunOperator:
DatabricksSubmitRunOperator
===========================
Use the :class:`~airflow.providers.databricks.operators.DatabricksSubmitRunOperator` to submit
an existing Spark job run to Databricks api/2.0/jobs/runs/submit <https://docs.databricks.com/api/latest/jobs.html#runs-submit> API endpoint.
Using the Operator
^^^^^^^^^^^^^^^^^^
There are two ways to instantiate this operator. In the first way, you can take the JSON payload that you typically use
to call the ``api/2.0/jobs/runs/submit`` endpoint and pass it directly to our ``DatabricksSubmitRunOperator`` through the ``json`` parameter.
Another way to accomplish the same thing is to use the named parameters of the ``DatabricksSubmitRunOperator`` directly. Note that there is exactly
one named parameter for each top level parameter in the ``runs/submit`` endpoint.
.. list-table:: Databricks Airflow Connection Metadata
:widths: 25 25
:header-rows: 1
* - Parameter
- Input
* - spark_jar_task: dict
- main class and parameters for the JAR task
* - notebook_task: dict
- notebook path and parameters for the task
* - spark_python_task: dict
- python file path and parameters to run the python file with
* - spark_submit_task: dict
- parameters needed to run a spark-submit command
* - new_cluster: dict
- specs for a new cluster on which this task will be run
* - existing_cluster_id: string
- ID for existing cluster on which to run this task
* - libraries: list of dict
- libraries which this run will use
* - run_name: string
- run name used for this task
* - timeout_seconds: integer
- The timeout for this run
* - databricks_conn_id: string
- the name of the Airflow connection to use
* - polling_period_seconds: integer
- controls the rate which we poll for the result of this run
* - databricks_retry_limit: integer
- amount of times retry if the Databricks backend is unreachable
* - databricks_retry_delay: decimal
- number of seconds to wait between retries
* - do_xcom_push: boolean
- whether we should push run_id and run_page_url to xcom
An example usage of the DatabricksSubmitRunOperator is as follows:
.. exampleinclude:: /../../airflow/providers/databricks/example_dags/example_databricks.py
:language: python
:start-after: [START howto_operator_databricks_json]
:end-before: [END howto_operator_databricks_json]
You can also use named parameters to initialize the operator and run the job.
.. exampleinclude:: /../../airflow/providers/databricks/example_dags/example_databricks.py
:language: python
:start-after: [START howto_operator_databricks_named]
:end-before: [END howto_operator_databricks_named]