Unexpected double count when using Count with datadog-go/v5 statsd client

[masumluf]

I’m using github.com/DataDog/datadog-go/v5/statsd to send Count metrics to Datadog. However, I’m seeing twice the count I expect.

Code to Reproduce

main.go

package main

import (
        "log"
        "time"
        "github.com/DataDog/datadog-go/v5/statsd"
)

func main() {
        statsd, err := statsd.New("127.0.0.1:8125")
        if err != nil {
                log.Fatal(err)
        }

        for i := 1; i <= 10; i++ {
                statsd.Count("example_metric.count", 1, []string{"environment:dev"}, 1)
                log.Printf("Sent metric %d", i)
                time.Sleep(1 * time.Second)
        }
}

Expected Behavior

I expect to see a count of 10 in Datadog after sending 10 metrics.

Actual Behavior

Instead, I see a count of 20.

The logs show the loop only runs 10 times.

But in Datadog, the count doubles.