Purpose

Introduction to GoReplay
Writing Middleware tailored to your needs

Goal

Gauge performance of would-be servers with realistic traffic
Tune server specifications to avoid over-provisioning, (or under)

Problem Background

Loadtesting:

Manually:
- Can diversify requests
- Slow, unrealistic throughput
Scripted:
- e.g. Apache Bench, online tools
- Variable throughput
- Typically limited in diversity
GoReplay:
- Requests are as diverse as the captured traffic
- Traffic can be captured and replayed at customisable throughput (n/a for time-sensitive applications)
- Traffic can be rate-limited

Solution

GoReplay installation

Commands to run

HAProxy Config workaround

Middleware

Monitoring

Side Effects

Conclusion