DBLense Trace Replay — User Guide

Capture SQL Server Extended Events traces and re-execute them against a target instance using a multi-threaded engine that simulates concurrent user connections.

Overview

DBLense Trace Replay captures SQL Server Extended Events traces and replays them against a target server. It works with both on-premises SQL Server and Azure SQL Managed Instances.

Key Use Cases

• Reproduce production issues on a test server safely
• Test query performance improvements before deploying to production
• Compare execution results between environments (dev vs. staging vs. prod)
• Validate patches/upgrades by replaying a real workload against a new version
• Debug intermittent issues by replaying captured workloads