groupcache-db-experiment

This project simulates a scenario wherein a few frontends running groupcache are fronting a slow database. See my blog post about it for more details.

Getting it running

The following commands will set up this topology:

Build everything

1. git clone [email protected]:capotej/groupcache-db-experiment
2. sh build.sh

Start DB server

1. cd dbserver && ./dbserver

This starts a delibrately slow k/v datastore on :8080

Start Multiple Frontends

1. cd frontend
2. ./frontend -port 8001
3. ./frontend -port 8002
4. ./frontend -port 8003

Use the CLI to set/get values

1. cd cli
2. ./cli -set -key foo -value bar
3. ./cli -get -key foo should see bar in 300 ms
4. ./cli -cget -key foo should see bar in 300ms (cache is loaded)
5. ./cli -cget -key foo should see bar instantly