OpenMetadata/docs/openmetadata-apis/schemas/entities/pipeline.md

# Pipeline

This schema defines the Pipeline entity. A pipeline enables the flow of data from source to destination through a series of processing steps. ETL is a type of pipeline where the series of steps Extract, Transform and Load the data.

**$id:**[**https://open-metadata.org/schema/entity/data/pipeline.json**](https://open-metadata.org/schema/entity/data/pipeline.json)

Type: `object`

This schema <u>does not</u> accept additional properties.

## Properties
 - **id** `required`
	 - Unique identifier that identifies a pipeline instance.
	 - $ref: [../../type/basic.json#/definitions/uuid](../types/basic.md#uuid)
 - **name** `required`
	 - Name that identifies this pipeline instance uniquely.
	 - Type: `string`
	 - Length: between 1 and 128
 - **displayName**
	 - Display Name that identifies this Pipeline. It could be title or label from the source services.
	 - Type: `string`
 - **fullyQualifiedName**
	 - A unique name that identifies a pipeline in the format 'ServiceName.PipelineName'.
	 - Type: `string`
 - **description**
	 - Description of this Pipeline.
	 - Type: `string`
 - **version**
	 - Metadata version of the entity.
	 - $ref: [../../type/entityHistory.json#/definitions/entityVersion](../types/entityhistory.md#entityversion)
 - **updatedAt**
	 - Last update time corresponding to the new version of the entity in Unix epoch time milliseconds.
	 - $ref: [../../type/basic.json#/definitions/timestamp](../types/basic.md#timestamp)
 - **updatedBy**
	 - User who made the update.
	 - Type: `string`
 - **pipelineUrl**
	 - Pipeline  URL to visit/manage. This URL points to respective pipeline service UI.
	 - Type: `string`
	 - String format must be a "uri"
 - **concurrency**
	 - Concurrency of the Pipeline.
	 - Type: `integer`
 - **pipelineLocation**
	 - Pipeline Code Location.
	 - Type: `string`
 - **startDate**
	 - Start date of the workflow.
	 - $ref: [../../type/basic.json#/definitions/dateTime](../types/basic.md#datetime)
 - **tasks**
	 - All the tasks that are part of pipeline.
	 - Type: `array`
		 - **Items**
		 - $ref: [#/definitions/task](#task)
 - **pipelineStatus**
	 - Series of pipeline executions and its status.
	 - Type: `array`
		 - **Items**
		 - $ref: [#/definitions/pipelineStatus](#pipelinestatus)
 - **followers**
	 - Followers of this Pipeline.
	 - $ref: [../../type/entityReference.json#/definitions/entityReferenceList](../types/entityreference.md#entityreferencelist)
 - **tags**
	 - Tags for this Pipeline.
	 - Type: `array`
		 - **Items**
		 - $ref: [../../type/tagLabel.json](../types/taglabel.md)
 - **href**
	 - Link to the resource corresponding to this entity.
	 - $ref: [../../type/basic.json#/definitions/href](../types/basic.md#href)
 - **owner**
	 - Owner of this pipeline.
	 - $ref: [../../type/entityReference.json](../types/entityreference.md)
 - **service** `required`
	 - Link to service where this pipeline is hosted in.
	 - $ref: [../../type/entityReference.json](../types/entityreference.md)
 - **serviceType**
	 - Service type where this pipeline is hosted in.
	 - $ref: [../services/pipelineService.json#/definitions/pipelineServiceType](../services/pipelineservice.md#pipelineservicetype)
 - **changeDescription**
	 - Change that lead to this version of the entity.
	 - $ref: [../../type/entityHistory.json#/definitions/changeDescription](../types/entityhistory.md#changedescription)
 - **deleted**
	 - When `true` indicates the entity has been soft deleted.
	 - Type: `boolean`
	 - Default: _false_


## Type definitions in this schema
### statusType

 - Enum defining the possible Status.
 - Type: `string`
 - The value is restricted to the following: 
	 1. _"Successful"_
	 2. _"Failed"_
	 3. _"Pending"_


### taskStatus

 - This schema defines a time series of the status of a Pipeline or Task.
 - Type: `object`
 - This schema <u>does not</u> accept additional properties.
 - **Properties**
	 - **name**
		 - Name of the Task.
		 - Type: `string`
	 - **executionStatus**
		 - Status at a specific execution date.
		 - $ref: [#/definitions/statusType](#statustype)


### task

 - Type: `object`
 - This schema <u>does not</u> accept additional properties.
 - **Properties**
	 - **name** `required`
		 - Name that identifies this task instance uniquely.
		 - Type: `string`
	 - **displayName**
		 - Display Name that identifies this Task. It could be title or label from the pipeline services.
		 - Type: `string`
	 - **fullyQualifiedName**
		 - A unique name that identifies a pipeline in the format 'ServiceName.PipelineName.TaskName'.
		 - Type: `string`
	 - **description**
		 - Description of this Task.
		 - Type: `string`
	 - **taskUrl**
		 - Task URL to visit/manage. This URL points to respective pipeline service UI.
		 - Type: `string`
		 - String format must be a "uri"
	 - **downstreamTasks**
		 - All the tasks that are downstream of this task.
		 - Type: `array`
			 - **Items**
			 - Type: `string`
	 - **taskType**
		 - Type of the Task. Usually refers to the class it implements.
		 - Type: `string`
	 - **taskSQL**
		 - SQL used in the task. Can be used to determine the lineage.
		 - $ref: [../../type/basic.json#/definitions/sqlQuery](../types/basic.md#sqlquery)
	 - **tags**
		 - Tags for this task.
		 - Type: `array`
			 - **Items**
			 - $ref: [../../type/tagLabel.json](../types/taglabel.md)


### pipelineStatus

 - Series of pipeline executions, its status and task status.
 - Type: `object`
 - This schema <u>does not</u> accept additional properties.
 - **Properties**
	 - **executionDate**
		 - Date where the job was executed.
		 - $ref: [../../type/basic.json#/definitions/timestamp](../types/basic.md#timestamp)
	 - **executionStatus**
		 - Status at a specific execution date.
		 - $ref: [#/definitions/statusType](#statustype)
	 - **taskStatus**
		 - Series of task executions and its status.
		 - Type: `array`
			 - **Items**
			 - $ref: [#/definitions/taskStatus](#taskstatus)




_This document was updated on: Wednesday, March 9, 2022_