// LoadHandler is the handler for the request to "/". It is to this api endpoint
// that we will send the traffic patterns to test auto-scaling. This endpoint
// first performs some relatively substantial amount of computational work that
// will utilize a portion of the CPU, and then writes the CPU utilization for
// the pod and some metric measuring of quality of service, such as how long it
// took the pod to perform the previous computation.
func LoadHandler(w http.ResponseWriter, r *http.Request) {
eru, qos, err := profileFunction(costIntensiveTask)
if err != nil {
handleError(err, w, r)
} else {
trafficPattern := r.URL.Query().Get(TrafficPatternParam)
err = database.WriteMetrics(eru, qos, trafficPattern)
if err != nil {
handleError(err, w, r)
} else {
// Output the response as JSON.
w.WriteHeader(200)
enc, err := json.Marshal(map[string]interface{}{
"eru": eru,
"qos": qos,
"traffic-pattern": trafficPattern,
})
if err == nil {
w.Write(enc)
}
}
}
return
}
func writeToDatabase(t *testing.T) {
eru, qos, trafficPattern := 1.0, 1.0, "increase-decrease"
err := database.WriteMetrics(eru, qos, trafficPattern)
if err != nil {
t.Fatal("Error writing metrics to the database.")
}
}