What caused the sudden 30% increase in error rates for OutSystems's Integration Builder last week?

Introduction

The sudden 30% increase in error rates for OutSystems's Integration Builder last week is a critical issue that demands immediate attention. This analysis will systematically identify, validate, and address the root cause while considering both short-term fixes and long-term implications for the product.

I'll approach this problem by first clarifying key details, ruling out external factors, and then diving deep into the product's functionality and user journey. From there, I'll break down the metric, gather relevant data, form hypotheses, and conduct a thorough root cause analysis. Finally, I'll propose validation methods and outline a comprehensive resolution plan.

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking this could be related to a recent deployment. Has there been any significant update or change to the Integration Builder in the past week or two?

Why it matters: Recent changes often correlate with sudden performance shifts. Expected answer: Yes, there was a minor update to improve API connectivity. Impact on approach: If confirmed, I'd focus on changes in that update as a primary area of investigation.

• Considering the magnitude of the increase, I'm wondering about the scope. Is this 30% increase uniform across all users and integrations, or are there specific segments more affected?

Why it matters: Identifying patterns in affected segments can narrow down potential causes. Expected answer: The increase is more pronounced in integrations with external APIs. Impact on approach: I'd prioritize investigating external API connections and related components.

• Given the nature of integration tools, I'm curious about any changes in connected systems. Have there been any known updates or issues with popular third-party services that integrate with our tool?

Why it matters: External dependencies can significantly impact integration performance. Expected answer: No major known issues with third-party services. Impact on approach: I'd still consider external factors but focus more on internal causes.

• Thinking about potential data anomalies, has there been any change in how we measure or define error rates for the Integration Builder?

Why it matters: Ensures we're comparing apples to apples and not dealing with a measurement issue. Expected answer: No changes in error rate definition or measurement. Impact on approach: Confirms the issue is with actual performance, not data collection.