add simple tool to test how MT aggregates data

aggcarbon/main.go

@@ -0,0 +1,57 @@
+package main
+
+import (
+	"flag"
+	"sync"
+
+	"fmt"
+	"net"
+	"os"
+	"time"
+)
+
+var (
+	addr string
+	wg   sync.WaitGroup
+)
+
+func init() {
+	flag.StringVar(&addr, "addr", "localhost:2003", "address of carbon host")
+}
+
+func main() {
+	flag.Parse()
+	conn, err := net.Dial("tcp", addr)
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+	to := time.Now().Unix()
+	from := to - 6*24*60*60
+
+	wg.Add(8)
+	go do("fakemetrics.raw.min", conn, from, to)
+	go do("fakemetrics.raw.max", conn, from, to)
+	go do("fakemetrics.raw.all", conn, from, to)
+	go do("fakemetrics.raw.default", conn, from, to)
+	go do("fakemetrics.agg.min", conn, from, to)
+	go do("fakemetrics.agg.max", conn, from, to)
+	go do("fakemetrics.agg.all", conn, from, to)
+	go do("fakemetrics.agg.default", conn, from, to)
+	wg.Wait()
+}
+
+func do(key string, conn net.Conn, from, to int64) {
+	i := 0
+	for ts := from; ts < to; ts++ {
+		if ts%7200 == 0 {
+			fmt.Println(key, ts-from, "/", to-from)
+		}
+		_, err := fmt.Fprintf(conn, "%s %d %d\n", key, i, ts)
+		if err != nil {
+			fmt.Println(err)
+		}
+		i++
+	}
+	wg.Done()
+}