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feat(go): expose fast writer stage latency histogram

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lingniu
2026-07-03 19:12:58 +08:00
parent 07d17e5adf
commit 2db05d100d
6 changed files with 79 additions and 7 deletions
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docs/ops/100k-capacity-baseline.md
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@@ -76,6 +76,7 @@ systemd gateway 已配置 `LimitNOFILE=1048576`，需要持续保持。
| NATS bridge | `vehicle_bridge_nats_consumer_pending` | burst 后下降 |
| NATS bridge | `vehicle_bridge_batch_pending_messages` | 稳态接近 0，burst 后下降 |
| NATS bridge | `vehicle_bridge_batch_duration_ms_histogram_bucket` | p99 不持续上升 |
| NATS fast writer | `vehicle_fast_writer_stage_duration_ms_histogram_bucket` | TDengine/Redis/ack 各阶段 p99 不持续上升 |
| Kafka consumers | `vehicle_*_kafka_lag` | 稳态为 0，burst 后下降 |
| Realtime Redis | `vehicle_realtime_store_update_duration_ms_histogram_bucket{store="redis"}` | p99 毫秒级且不持续上升 |
| Realtime MySQL | `vehicle_realtime_store_update_duration_ms_histogram_bucket{store="mysql"}` | p99 不持续上升 |