keep apiserver_request_latencies_summary

Author: danielqsj

staging/src/k8s.io/apiserver/pkg/endpoints/metrics/metrics.go

@@ -282,6 +282,7 @@ func MonitorRequest(req *http.Request, verb, group, version, resource, subresour
 	reportedVerb := cleanVerb(verb, req)
 	dryRun := cleanDryRun(req.URL)
 	client := cleanUserAgent(utilnet.GetHTTPClient(req))
+	elapsedMicroseconds := float64(elapsed / time.Microsecond)
 	elapsedSeconds := elapsed.Seconds()
 	requestCounter.WithLabelValues(reportedVerb, dryRun, group, version, resource, subresource, scope, component, client, contentType, codeToString(httpCode)).Inc()
 	deprecatedRequestCounter.WithLabelValues(reportedVerb, group, version, resource, subresource, scope, component, client, contentType, codeToString(httpCode)).Inc()