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feat(go): expose async sink publish latency histogram

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lingniu
2026-07-03 19:02:24 +08:00
parent 018015f9de
commit afb301cb7a
6 changed files with 15 additions and 2 deletions
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5
docs/ops/go-vehicle-ingest-memory.md
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@@ -393,6 +393,9 @@ net.ipv4.tcp_tw_reuse = 1
vehicle_async_sink_enqueue_total{sink,kind,status}
vehicle_async_sink_publish_total{sink,kind,status}
vehicle_async_sink_publish_duration_ms{sink,kind,status}
vehicle_async_sink_publish_duration_ms_histogram_bucket{sink,kind,status,le}
vehicle_async_sink_publish_duration_ms_histogram_count{sink,kind,status}
vehicle_async_sink_publish_duration_ms_histogram_sum{sink,kind,status}
vehicle_async_sink_queue_depth{sink}
```
@@ -404,7 +407,7 @@ vehicle_async_sink_queue_depth{sink}
- NATS bridge ack pending 为 `0`
- Gateway 启动后窗口无 `error|failed|panic|fatal` 日志
这些指标是进入带帧率压测前的关键保护栏：如果 `queue_depth` 持续增长或 `enqueue_total{status="timeout"}` 增长，说明入口 publish 队列已成为瓶颈。
这些指标是进入带帧率压测前的关键保护栏：如果 `queue_depth` 持续增长、`enqueue_total{status="timeout"}` 增长，或 `vehicle_async_sink_publish_duration_ms_histogram_bucket` 的 p99 持续上升，说明入口 publish 队列或下游 NATS/Kafka 写入已成为瓶颈。
### NATS Kafka bridge batch 指标