AWS Glue automates much of the effort to build, maintain, and run extract, transform, and load (ETL) jobs. AWS Glue crawls your data sources, identifies data formats, and suggests schemas and transformations. AWS Glue automatically generates the code to execute your data transformations and loading processes. AWS Glue is serverless, so there is no infrastructure to provision or manage. AWS Glue runs your ETL jobs on a fully managed Apache Spark environment.