Golang Client.GetServerStats方法代码示例

func testIngestedSpansMetricsImpl(t *testing.T, usePacked bool) {
	htraceBld := &MiniHTracedBuilder{Name: "TestIngestedSpansMetrics",
		DataDirs: make([]string, 2),
	}
	ht, err := htraceBld.Build()
	if err != nil {
		t.Fatalf("failed to create datastore: %s", err.Error())
	}
	defer ht.Close()
	var hcl *htrace.Client
	hcl, err = htrace.NewClient(ht.ClientConf(), &htrace.TestHooks{
		HrpcDisabled: !usePacked,
	})
	if err != nil {
		t.Fatalf("failed to create client: %s", err.Error())
	}

	NUM_TEST_SPANS := 12
	allSpans := createRandomTestSpans(NUM_TEST_SPANS)
	err = hcl.WriteSpans(allSpans)
	if err != nil {
		t.Fatalf("WriteSpans failed: %s\n", err.Error())
	}
	for {
		var stats *common.ServerStats
		stats, err = hcl.GetServerStats()
		if err != nil {
			t.Fatalf("GetServerStats failed: %s\n", err.Error())
		}
		if stats.IngestedSpans == uint64(NUM_TEST_SPANS) {
			break
		}
		time.Sleep(1 * time.Millisecond)
	}
}

// Print information retrieved from an htraced server via /server/info as JSON
func printServerStatsJson(hcl *htrace.Client) int {
	stats, err := hcl.GetServerStats()
	if err != nil {
		fmt.Println(err.Error())
		return EXIT_FAILURE
	}
	buf, err := json.MarshalIndent(stats, "", "  ")
	if err != nil {
		fmt.Printf("Error marshalling server stats: %s", err.Error())
		return EXIT_FAILURE
	}
	fmt.Printf("%s\n", string(buf))
	return EXIT_SUCCESS
}

// Print information retrieved from an htraced server via /server/info
func printServerStats(hcl *htrace.Client) int {
	stats, err := hcl.GetServerStats()
	if err != nil {
		fmt.Println(err.Error())
		return EXIT_FAILURE
	}
	w := new(tabwriter.Writer)
	w.Init(os.Stdout, 0, 8, 0, '\t', 0)
	fmt.Fprintf(w, "HTRACED SERVER STATS\n")
	fmt.Fprintf(w, "Datastore Start\t%s\n",
		common.UnixMsToTime(stats.LastStartMs).Format(time.RFC3339))
	fmt.Fprintf(w, "Server Time\t%s\n",
		common.UnixMsToTime(stats.CurMs).Format(time.RFC3339))
	fmt.Fprintf(w, "Spans reaped\t%d\n", stats.ReapedSpans)
	fmt.Fprintf(w, "Spans ingested\t%d\n", stats.IngestedSpans)
	fmt.Fprintf(w, "Spans written\t%d\n", stats.WrittenSpans)
	fmt.Fprintf(w, "Spans dropped by server\t%d\n", stats.ServerDroppedSpans)
	dur := time.Millisecond * time.Duration(stats.AverageWriteSpansLatencyMs)
	fmt.Fprintf(w, "Average WriteSpan Latency\t%s\n", dur.String())
	dur = time.Millisecond * time.Duration(stats.MaxWriteSpansLatencyMs)
	fmt.Fprintf(w, "Maximum WriteSpan Latency\t%s\n", dur.String())
	fmt.Fprintf(w, "Number of leveldb directories\t%d\n", len(stats.Dirs))
	w.Flush()
	fmt.Println("")
	for i := range stats.Dirs {
		dir := stats.Dirs[i]
		fmt.Printf("==== %s ===\n", dir.Path)
		fmt.Printf("Approximate number of bytes: %d\n", dir.ApproximateBytes)
		stats := strings.Replace(dir.LevelDbStats, "\\n", "\n", -1)
		fmt.Printf("%s\n", stats)
	}
	w = new(tabwriter.Writer)
	w.Init(os.Stdout, 0, 8, 0, '\t', 0)
	fmt.Fprintf(w, "HOST SPAN METRICS\n")
	mtxMap := stats.HostSpanMetrics
	keys := make(sort.StringSlice, len(mtxMap))
	i := 0
	for k, _ := range mtxMap {
		keys[i] = k
		i++
	}
	sort.Sort(keys)
	for k := range keys {
		mtx := mtxMap[keys[k]]
		fmt.Fprintf(w, "%s\twritten: %d\tserver dropped: %d\n",
			keys[k], mtx.Written, mtx.ServerDropped)
	}
	w.Flush()
	return EXIT_SUCCESS
}

// Print information retrieved from an htraced server via /server/info
func printServerStats(hcl *htrace.Client) int {
	stats, err := hcl.GetServerStats()
	if err != nil {
		fmt.Println(err.Error())
		return EXIT_FAILURE
	}
	fmt.Printf("HTraced server stats:\n")
	fmt.Printf("%d leveldb shards.\n", len(stats.Shards))
	for i := range stats.Shards {
		shard := stats.Shards[i]
		fmt.Printf("==== %s ===\n", shard.Path)
		fmt.Printf("Approximate number of spans: %d\n", shard.ApproxNumSpans)
		stats := strings.Replace(shard.LevelDbStats, "\\n", "\n", -1)
		fmt.Printf("%s\n", stats)
	}
	return EXIT_SUCCESS
}