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perf(cmpp): instrument inbound flow and unbatch submit worker

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hectorzhao
2026-08-20 11:27:35 +08:00
parent c4f36fc50d
commit b9a71fe0b9
23 changed files with 760 additions and 138 deletions
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gateway/internal/metrics/metrics_test.go
+13 -1
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@@ -11,16 +11,28 @@ import (
func TestMetricsHandlerExportsOnlyAggregateGatewayState(t *testing.T) {
ObserveSubmit(true, 20*time.Millisecond)
ObserveInboundStage("api_roundtrip", true, 30*time.Millisecond)
ObserveSubmitStage("rate_limit_wait", true, 15*time.Millisecond)
request := httptest.NewRequest(http.MethodGet, "/metrics", nil)
response := httptest.NewRecorder()
Handler(func(context.Context) Snapshot {
return Snapshot{UpstreamDesired: 2, UpstreamConnected: 1, DownstreamConnected: 3, SubmitWorkerUp: true, QueueAvailable: true, QueuePending: 4, QueueLag: 5, QueueOldestAgeSeconds: 12}
return Snapshot{UpstreamDesired: 2, UpstreamConnected: 1, DownstreamConnected: 3, SubmitWorkerUp: true, SubmitWorkerConcurrency: 64, SubmitWorkerInFlight: 7, QueueAvailable: true, QueuePending: 4, QueueLag: 5, QueueOldestAgeSeconds: 12}
}).ServeHTTP(response, request)
body := response.Body.String()
if response.Code != http.StatusOK || !strings.Contains(body, "cmpp_gateway_submit_queue_pending 4") || !strings.Contains(body, "cmpp_gateway_upstream_connections{state=\"connected\"} 1") {
t.Fatalf("unexpected metrics response: code=%d body=%s", response.Code, body)
}
for _, expected := range []string{
`cmpp_gateway_inbound_stage_duration_seconds_count{stage="api_roundtrip",result="success"} 1`,
`cmpp_gateway_submit_stage_duration_seconds_count{stage="rate_limit_wait",result="success"} 1`,
`cmpp_gateway_submit_worker_slots{state="configured"} 64`,
`cmpp_gateway_submit_worker_slots{state="in_flight"} 7`,
} {
if !strings.Contains(body, expected) {
t.Fatalf("metrics response is missing %q: %s", expected, body)
}
}
for _, forbidden := range []string{"phone_number", "message_id", "channel_id"} {
if strings.Contains(body, forbidden) {
t.Fatalf("metrics expose forbidden label %q", forbidden)