package broker import ( "fmt" "testing" ) func TestPickMember(t *testing.T) { servers := []string{ "s1:port", "s2:port", "s3:port", "s5:port", "s4:port", } total := 1000 distribution := make(map[string]int) for i := 0; i < total; i++ { tp := fmt.Sprintf("tp:%2d", i) m := PickMember(servers, []byte(tp)) // println(tp, "=>", m) distribution[m]++ } for member, count := range distribution { fmt.Printf("member: %s, key count: %d load=%.2f\n", member, count, float64(count*100)/float64(total/len(servers))) } }