去获取请求-编写：管道破损

I'm Sorry in advance for the probably stupid question. I want to send an image(image/jpeg) when certain URL is called. When I do few get request everything seems to be working fine, but when I use apache benchmark to stress test the same endpoint I got this error

write tcp [::1]:8080->[::1]:65255: write: broken pipe

Here is a code I want to execute:

func CameraImage(w http.ResponseWriter, r *http.Request) {
    //log.Println("Serving", r.URL)

    w.Header().Set("Access-Control-Allow-Origin", "*")
    w.Header().Set("Content-Type", "image/jpeg")

    vars := mux.Vars(r)
    path := vars["camera_path"]

    camera := getService().GetByPath(path)

    if camera.Image == nil {
        return
    }

    err := jpeg.Encode(w, camera.Image, nil)
    if err != nil {
        log.Println(err)
    }
}

https://gist.github.com/anonymous/c19c9c6f797d744382a90f35f8ea512f

https://github.com/babell00/toc_camera

Thanks for any Help Kuba