Step Functions: Data Sources and Metrics for Distributed Map
⚙️ AWS Step Functions now expands Distributed Map input sources and adds visibility metrics. Distributed Map can now iterate S3 objects via S3ListObjectsV2, read AWS Athena data manifests and Parquet files directly, and extract arrays from JSON stored in S3 or passed as state input. New observability metrics — Approximate Open Map Runs Count, Open Map Run Limit, and Approximate Map Runs Backlog Size — provide operational insight. These features are available in all commercial AWS Regions; enable Distributed Map mode in the Step Functions console and consult the developer guide for examples.
