This simple Go service generates load as part of the Feast testing suite. It sits between an HTTP based load testing tool as follows:

[Load Testing Tool] --(http)--> [Feast Load Test Proxy] --(grpc)--> [Feast Serving]

Start the proxy

LOAD_FEAST_SERVING_HOST=feast.serving.example.com LOAD_FEAST_SERVING_PORT=6566 go run main.go

2020/07/24 14:00:02 Creating client to connect to Feast Serving at localhost:6566
2020/07/24 14:00:02 Starting server on port:8080

The following command simply echos the version of Feast Serving. Useful for testing network latency

curl localhost:8080/echo

This command will send a single GetOnlineFeatures request to the configured Feast serving instance. The entity_count parameter is used to set how many entities will be sent (unique users in this case). The higher the number of entities the higher the expected latency.

curl localhost:8080/send?entity_count=30