neonvm-migration-loadtest

README

NeonVM live migration loadtest tool

What this tool do:

• run NeonVM virtual machines in k8s cluster, each machine ased on postgres:15-bullseye docker image
• for each VM run separate pod with pgbench configured to attack PostgreSQL running inside VM via overlay network
• randomly trigger VM live migrations (each ~5 min in average) for each VM

TL;DR

build

go build

get usage info

./neonvm-migration-loadtest -help

simple run

./neonvm-migration-loadtest

NOTE: tool will use default kubernetes config (~/.kube/config) and your current kubernetes context, you can override it by -kubeconfig arg

run 100 virtual machines during 1 hour without autoscale feature

./neonvm-migration-loadtest -vm-count=100 -duration=3600 -autoscale=false

Run as kubernetes job

apply RBAC

kubectl apply -f manifests/rbac.yaml

run 100 virtual machines during 1 hour without autoscale feature

kubectl apply -f manifests/loadtest.yaml

NOTE: edit loadtest.yaml (args for loadtest container) if you want change load test settings before run

Monitoring

NOTE: manifests adapted for Prometheus managed by kube-prometheus-stack

• manifests/metrics.yaml - used to configure Prometheus scrape metrics from load test tool
• manifests/neonvm-metrics.yaml - used to configure Prometheus scrape metrics from NeonVM controller
• dashboard/load-test.json - Grafana dashboard