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feat(go): expose history batch pending metrics

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lingniu
2026-07-03 18:46:40 +08:00
parent 1cbe29c5fc
commit 71905aca3d
6 changed files with 79 additions and 7 deletions
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docs/ops/go-service-observability.md
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@@ -43,6 +43,9 @@ curl -fsS http://127.0.0.1:20200/readyz
| `vehicle_bridge_nats_consumer_ack_pending` | JetStream messages delivered to bridge but not yet acked. |
| `vehicle_bridge_nats_consumer_waiting` | Pull requests waiting on the bridge durable consumer. |
| `vehicle_history_writes_total` | TDengine history writes. Labels: `topic`, `status`. |
| `vehicle_history_batch_pending_messages` | Messages fetched by history writer but not yet flushed and committed. |
| `vehicle_history_batch_pending_rows` | Parsed raw envelopes waiting in the current TDengine batch. |
| `vehicle_history_batch_flush_duration_ms` | Last TDengine batch flush duration. Labels: `status`. |
| `vehicle_stat_writes_total` | MySQL metric writes. Labels: `topic`, `status`. |
| `vehicle_realtime_updates_total` | Redis/MySQL realtime projector updates. Labels: `topic`, `status`. |
| `vehicle_history_kafka_lag` | Estimated Kafka lag for history writer by topic and partition. |