<ul data-eligibleForWebStory="true"><li>During a KEDA upgrade from v2.10 to v2.15, issues with empty triggers causing scaling problems were identified in a non-production environment.</li><li>The upgrade revealed errors in leader lease acquisition and the necessity of triggers for ScaledObjects.</li><li>KEDA v2.10 allowed empty triggers, while v2.15 introduced validation for trigger presence.</li><li>The fix involved adding proper triggers to ScaledObjects to enable correct scaling behavior.</li><li>The article highlights the importance of detecting silent failures and the benefits of improved validation.</li><li>Key takeaways include the danger of silent failures, validation improvements, version changes, debugging best practices, and prevention strategies.</li><li>The upgrade to KEDA v2.15 was not a breaking change but revealed existing misconfigurations, improving system reliability.</li><li>Understanding the difference between revealing existing problems and creating new ones is essential for effective debugging.</li></ul>

KEDA Upgrade Debugging: When Empty Triggers Break Your Scaling

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