-
Notifications
You must be signed in to change notification settings - Fork 13
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Signed-off-by: MeihaoZuyu <anqur@riema.xyz>
- Loading branch information
MeihaoZuyu
committed
May 14, 2024
1 parent
7d97405
commit 1a57785
Showing
11 changed files
with
193 additions
and
127 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| package metrics | ||
|
|
||
| import ( | ||
| "errors" | ||
| "log" | ||
| "net/http" | ||
| "strconv" | ||
| "time" | ||
|
|
||
| "github.com/gin-gonic/gin" | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| "github.com/prometheus/client_golang/prometheus/promhttp" | ||
| ) | ||
|
|
||
| const ( | ||
| StageInitializing = iota + 1 | ||
| StageCatchup | ||
| StageServing | ||
| StageUpdating | ||
| StageReorg | ||
| ) | ||
|
|
||
| func fqn(name string) string { | ||
| return prometheus.BuildFQName("nubit", "modular_committee", name) | ||
| } | ||
|
|
||
| var ( | ||
| Version = prometheus.NewGaugeVec( | ||
| prometheus.GaugeOpts{Name: fqn("version")}, | ||
| []string{"version"}, | ||
| ) | ||
|
|
||
| Stage = prometheus.NewGauge(prometheus.GaugeOpts{Name: fqn("stage")}) | ||
|
|
||
| DBQueryDuration = prometheus.NewHistogramVec( | ||
| prometheus.HistogramOpts{ | ||
| Name: fqn("dbquery_duration"), | ||
| Buckets: []float64{0.02, 0.05, 0.1, 0.2, 0.5, 1, 5}, | ||
| }, | ||
| []string{"op"}, | ||
| ) | ||
|
|
||
| CurrentHeight = prometheus.NewGauge(prometheus.GaugeOpts{Name: fqn("current_height")}) | ||
|
|
||
| HttpDuration = prometheus.NewHistogramVec( | ||
| prometheus.HistogramOpts{ | ||
| Name: fqn("http_duration"), | ||
| Buckets: []float64{0.01, 0.05, 0.1, 0.2, 0.5, 1, 5, 15}, | ||
| }, | ||
| []string{"method", "path", "status"}, | ||
| ) | ||
| ) | ||
|
|
||
| func ObserveDBQuery(op string, started time.Time) { | ||
| DBQueryDuration.WithLabelValues(op).Observe(time.Since(started).Seconds()) | ||
| } | ||
|
|
||
| func HTTP(c *gin.Context) { | ||
| started := time.Now() | ||
|
|
||
| c.Next() | ||
|
|
||
| HttpDuration.WithLabelValues( | ||
| c.Request.Method, | ||
| c.Request.URL.Path, | ||
| strconv.Itoa(c.Writer.Status()), | ||
| ).Observe(time.Since(started).Seconds()) | ||
| } | ||
|
|
||
| func init() { | ||
| prometheus.MustRegister( | ||
| Version, | ||
| Stage, | ||
| DBQueryDuration, | ||
| CurrentHeight, | ||
| HttpDuration, | ||
| ) | ||
| } | ||
|
|
||
| func ListenAndServe(addr string) { | ||
| mux := http.NewServeMux() | ||
| mux.Handle("/metrics", promhttp.Handler()) | ||
| if err := (&http.Server{Addr: addr, Handler: mux}).ListenAndServe(); !errors.Is(err, http.ErrServerClosed) { | ||
| log.Fatal(err) | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| package metrics | ||
|
|
||
| import ( | ||
| "net/http" | ||
| "net/http/httptest" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/gin-gonic/gin" | ||
| "github.com/prometheus/client_golang/prometheus/promhttp" | ||
| "github.com/prometheus/client_golang/prometheus/testutil/promlint" | ||
| prompb "github.com/prometheus/client_model/go" | ||
| ) | ||
|
|
||
| func TestHTTP(t *testing.T) { | ||
| const ( | ||
| elapsed = 100 * time.Millisecond | ||
| rootPath = "/" | ||
| metricsPath = "/metrics" | ||
| ) | ||
| g := gin.New() | ||
| g.Use(HTTP) | ||
| g.GET(rootPath, func(*gin.Context) { time.Sleep(elapsed) }) | ||
| g.GET(metricsPath, gin.WrapH(promhttp.Handler())) | ||
| testServer := httptest.NewServer(g.Handler()) | ||
| if _, err := testServer.Client().Get(testServer.URL); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| rsp, err := testServer.Client().Get(testServer.URL + metricsPath) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| defer func() { _ = rsp.Body.Close() }() | ||
| l := promlint.New(rsp.Body) | ||
| l.AddCustomValidations(func(mf *prompb.MetricFamily) []error { | ||
| for _, metric := range mf.GetMetric() { | ||
| if h := metric.Histogram; h != nil { | ||
| if sum := time.Duration(*h.SampleSum * float64(time.Second)); sum <= elapsed { | ||
| t.Fatal(sum) | ||
| } | ||
| if count := *h.SampleCount; count != 1 { | ||
| t.Fatal(count) | ||
| } | ||
| if v := *metric.Label[0].Value; v != http.MethodGet { | ||
| t.Fatal(v) | ||
| } | ||
| if v := *metric.Label[1].Value; v != rootPath { | ||
| t.Fatal(v) | ||
| } | ||
| if v := *metric.Label[2].Value; v != "200" { | ||
| t.Fatal(v) | ||
| } | ||
| } | ||
| } | ||
| return nil | ||
| }) | ||
| if _, err := l.Lint(); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.