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Architecture Corner

Scaling AWS Step Functions: When Standard Maps Hit Their Limits

30 Jul 2025

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Architecture Corner Newsletter Podcast - Your deep dive into cloud architecture patterns and real-world implementation strategies.In this episode, we will cover:Understanding AWS Step Functions Map state capabilities and constraintsThe 256KB payload limitation and its impact on large-scale processingConcurrency bottlenecks with standard Maps (40 execution limit)How Distributed Maps solve size and concurrency challengesScaling from 40 to 10,000 concurrent executionsS3 integration patterns for handling massive datasetsPerformance comparisons and execution time improvementsEvent history management for large parallel workloadsWhen to choose Distributed Maps over standard approachesFor more details check ⁠here⁠.If you are interested in more information about software development and architecture, subscribe for free to our ⁠newsletter⁠.---https://architecturecorner.substack.com

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