What are the key concepts behind AWS Glue?

AWS Glue is a fully managed ETL service that makes it simple and cost-effective to categorize your data, clean it and move it reliably between various data stores. AWS Glue includes a central metadata repository which is known as the AWS Glue Data Catalog.

an ETL engine can automatically generates Python or Scala code, and a flexible scheduler that handles dependency resolution and job monitoring. It is serverless, so there’s no infrastructure to be set up.