Step Functions Broke Our Lambda Cold Starts — But Fixed Our EventBridge Delays

📰 Dev.to · Dinesh_gowtham

Learn how Step Functions can help mitigate Lambda cold starts but may introduce new issues like EventBridge delays, and how to balance these trade-offs

intermediate Published 24 Jun 2026
Action Steps
  1. Migrate Lambda functions to Step Functions to reduce cold starts
  2. Configure Step Functions to handle asynchronous tasks and improve warmness
  3. Monitor EventBridge delays and adjust Step Functions configuration accordingly
  4. Test and optimize the workflow to balance warmness and delay trade-offs
  5. Use metrics and logging to identify and address potential issues
Who Needs to Know This

DevOps and software engineering teams can benefit from understanding the implications of using Step Functions to manage Lambda functions, especially when dealing with cold starts and EventBridge integrations

Key Insight

💡 Using Step Functions can mitigate Lambda cold starts but may introduce EventBridge delays, requiring careful configuration and monitoring

Share This
🚀 Step Functions can fix Lambda cold starts but may break EventBridge! Learn how to balance warmness and delays 🤔

Key Takeaways

Learn how Step Functions can help mitigate Lambda cold starts but may introduce new issues like EventBridge delays, and how to balance these trade-offs

Full Article

We migrated 15 Lambdas to Step Functions to solve cold starts, but what we gained in warmness, we...
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