Load Testing

Rigorous testing is vital to ensure your load balancer can handle real-world scenarios.

Prerequisites

  • Ensure Rust is installed on your system.
  • RustBalancer is running with the following configuration:
DOCKER_IMAGE=mxmller/rustybalancer-playground:latest
TARGET_PORT=5000

HIGH_LOAD_THRESHOLD=60.0
LOW_LOAD_THRESHOLD=75.0
CRITICAL_LOAD_THRESHOLD=30.0

This configuration means:
- A new container starts when the average score reaches 60
- A container is removed if its score falls below 30
- New containers are shut down when the avg score recovers to 75

The test suite has been pulled from Git: Either recursively pulled with submodules when pulling RustBalancer or separately pulled from https://github.com/mxmueller/rustybalancer-test-suite/

If pulled recursively, the repo will be located in ./tests/

Running the Test

  1. With RustBalancer running, navigate to ./http-stress
  2. Follow the tutorial in the README for detailed instructions

Quick Test

For a simple test, run:

cargo run --release -- http://localhost:2548 15 500 3

This command: - Generates 15 requests per second - Runs for 500 seconds - Has a varying load with a maximum of 3 (considered high)

Important Notes

  1. Local tests are always limited by the performance of the host's network adapter and operating system.
  2. This example will demonstrate:
    1. The load suddenly becoming very high
    2. New containers starting up to the set maximum number
    3. Containers being shut down when the test ends

Demo