shishengliang/lingniu-vehicle-ingest
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feat(go): expose kafka consumer lag metrics

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lingniu
2026-07-02 19:23:01 +08:00
parent 41ff0bcef4
commit 1f4a23ff69
9 changed files with 63 additions and 3 deletions
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3
go/vehicle-gateway/cmd/realtime-api/main_test.go
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@@ -65,7 +65,7 @@ func TestProcessRealtimeMessageRecordsMetrics(t *testing.T) {
registry,
&contextCheckingRealtimeUpdater{},
&contextCheckingMessageCommitter{},
kafka.Message{Topic: "vehicle.event.go.unified.v1", Value: payload},
kafka.Message{Topic: "vehicle.event.go.unified.v1", Partition: 2, Offset: 10, HighWaterMark: 16, Value: payload},
)
text := registry.Render()
@@ -73,6 +73,7 @@ func TestProcessRealtimeMessageRecordsMetrics(t *testing.T) {
`vehicle_realtime_kafka_messages_total{status="received",topic="vehicle.event.go.unified.v1"} 1`,
`vehicle_realtime_updates_total{status="ok",topic="vehicle.event.go.unified.v1"} 1`,
`vehicle_realtime_kafka_commits_total{status="ok",topic="vehicle.event.go.unified.v1"} 1`,
`vehicle_realtime_kafka_lag{partition="2",topic="vehicle.event.go.unified.v1"} 5`,
} {
if !strings.Contains(text, want) {
t.Fatalf("metrics missing %s:\n%s", want, text)