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README.md

OpenLineage

Overview

OpenLineage is an Open standard for metadata and lineage collection designed to instrument jobs as they are running. It defines a generic model of run, job, and dataset entities identified using consistent naming strategies. The core lineage model is extensible by defining specific facets to enrich those entities.

Problem

Problem

Before

  • Duplication of effort: Each project has to instrument all jobs
  • Integrations are external and can break with new versions

With OpenLineage

  • Effort of integration is shared
  • Integration can be pushed in each project: no need to play catch up

Scope

OpenLineage defines the metadata for running jobs and the corresponding events. A configurable backend allows to choose what protocol to send the events to. Scope

Core model

Model

A facet is an atomic piece of metadata attached to one of the core entities. See the spec for more details.

Spec

The specification is defined using OpenAPI and allows extension through custom facets.

Related projects

  • Marquez: Marquez is an LF AI & DATA project to collect, aggregate, and visualize a data ecosystem's metadata. It is the reference implementation of the OpenLineage API.

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