Adding memory profile

.go

func writeHeap() {
	log.Info("Writing  profiles")
	resp, err := http.Get("http://localhost:8024/debug/pprof/heap")
	if err != nil {
		log.Infof("Failed at http.Get error: %+v", err)
		return
	}
	defer resp.Body.Close()

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		log.Infof("Failed at read body error: %+v", err)
		return
	}

	now := time.Now()
	dirName := "/tmp/goprofile"
	if _, err := os.Stat(dirName); err != nil {
		err := os.MkdirAll(dirName, os.ModePerm)
		if err != nil {
			log.Errorf("Failed to create dir: %s, error: %+v", dirName, err)
			return
		}
	}
	fileName := fmt.Sprintf("%s/heap.%v.pprof", dirName, *utils.ToUnix(&now))
	err = ioutil.WriteFile(fileName, body, 0644)
	if err != nil {
		log.Infof("Failed at write body error: %+v", err)
		return
	}
	log.Infof("Wrote heap file: %s", fileName)
}


func main() {	func main() {
	defer pf.Start(pf.MemProfile).Stop()	
	ticker := time.NewTicker(1 * time.Hour)	
	go func() {	
		for {	
			select {	
			case <-ticker.C:	
				writeHeap()	
			}	
		}	
	}()	
	go func() {	
		err := http.ListenAndServe(":8024", nil)	
		if err != nil {	
			log.Errorf("Failed at http server: %+v", err)	
		}	
	}()
	//block - should replace with real main service code
	select{ }
}