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• Open lineage captures metadata around data processing workflows, including information about data sets, schema, job inputs and outputs, and job versions.
• This metadata can be emitted through REST calls and stored in the Marquez model, which can be queried using various APIs.
• Open lineage can help with debugging by allowing for quick identification of data quality issues and tracking run states.
• It can also aid in backfilling by providing information about upstream and downstream dependencies and allowing for full or incremental processing.
• Open lineage has integrations with various tools such as Airflow and Spark, making it easy to incorporate into existing workflows.