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Serverless Storage on Amazon EMR Serverless now supports terabyte-scale shuffle

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AWS·Oct 1, 2026, 08:00 AMFeatureAI-assisted summary

Summary

Added support for up to 1 TB shuffle per job, raising the previous 200 GB limit
Enabled large‑scale Spark joins, aggregations, and sorting with spill‑to‑disk for memory‑intensive operations
Feature available in EMR Serverless 7.14, emr‑spark‑8.1+ across 18 AWS regions

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Official source Last checked Oct 5, 2026, 10:00 AM

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