Why has Devo's log ingestion rate dropped by 30% over the past week for enterprise customers?

Introduction

The recent 30% drop in Devo's log ingestion rate for enterprise customers over the past week is a critical issue that demands immediate attention. This significant decrease in log ingestion could severely impact our enterprise customers' ability to monitor and analyze their systems effectively, potentially compromising their security and operational efficiency. I'll approach this problem systematically, focusing on identifying the root cause, validating our hypotheses, and developing both short-term fixes and long-term solutions.

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking this could be related to a recent system update. Have there been any significant changes to our log ingestion pipeline or related systems in the past two weeks?

Why it matters: Recent changes often correlate with performance issues. Expected answer: Yes, there was a minor update to our data processing layer. Impact on approach: If confirmed, we'd focus on the update's impact and potential rollback strategies.

• Considering the specificity to enterprise customers, I'm wondering about usage patterns. Have we observed any unusual spikes or changes in log volume from our enterprise segment recently?

Why it matters: Unusual activity could indicate either a customer-side issue or a problem with our system's ability to handle enterprise-scale data. Expected answer: No significant changes in log volume have been reported. Impact on approach: If true, we'd shift focus to our system's processing capabilities rather than input volume.

• Given the scale of the drop, I'm curious about our monitoring systems. Are we confident in the accuracy of our metrics, and have there been any changes to how we measure log ingestion rates?

Why it matters: Ensures we're solving a real problem and not chasing a measurement error. Expected answer: Our monitoring systems are functioning correctly, and no changes have been made to measurement methods. Impact on approach: If confirmed, we can proceed with confidence in our data and focus on operational issues.

• Considering potential external factors, have there been any recent changes in network infrastructure or cloud service providers that could affect our log ingestion capabilities?

Why it matters: External dependencies can significantly impact our service performance. Expected answer: No major changes reported by our infrastructure team or cloud providers. Impact on approach: If true, we'd focus more on internal systems and configurations rather than external factors.