Sentry Load & Scale

Overview

Configure Sentry for applications processing 1M+ requests/day without sacrificing error visibility, burning through quota, or adding measurable SDK overhead. Covers adaptive sampling, connection pooling, multi-region tagging, quota management, SDK benchmarking, batch submission, load testing, and self-hosted deployment considerations.

Prerequisites

• Application handling sustained high traffic (>10K requests/min or >1M events/day)
• Sentry organization with quota and billing access (Settings > Subscription)
• @sentry/node v8+ installed (npm ls @sentry/node)
• Performance baseline established (p50/p95/p99 latency without Sentry)
• Event volume estimates calculated per category (errors, transactions, replays, attachments)

Instructions

Step 1 — Implement Adaptive Sampling

Static tracesSampleRate wastes quota at scale because it treats a health check the same as a checkout. Replace it with a traffic-aware tracesSampler that adjusts rates based on endpoint criticality and current load.