ops: record 100k hardening ecs rollout

docs/ops/go-vehicle-ingest-memory.md

@@ -52,6 +52,7 @@ Go 服务使用 systemd 裸机部署，不使用 Docker。
 最近 release：
 
 ```text
+/opt/lingniu-go-native/releases/100k-hardening-20260703175730
 /opt/lingniu-go-native/releases/parsed-fields-once-20260703163821
 ```
 
@@ -332,6 +333,40 @@ journalctl -u lingniu-go-gateway.service --since "2 minutes ago" --no-pager | gr
 '
 ```
 
+## 2026-07-03 10W 接入优化部署记录
+
+Release：
+
+```text
+/opt/lingniu-go-native/releases/100k-hardening-20260703175730
+```
+
+包含：
+
+- Gateway 默认 `TCP_MAX_CONNECTIONS=120000`。
+- 新增 `vehicle_gateway_connection_rejections_total`。
+- 新增 `/opt/lingniu-go-native/current/load-sim` 运维压测工具。
+- Redis-first realtime projector 增加 MySQL async queue dropped 回归测试。
+
+ECS 已落地内核参数：
+
+```text
+net.core.somaxconn = 65535
+net.ipv4.tcp_max_syn_backlog = 65535
+net.ipv4.ip_local_port_range = 10000 65000
+net.ipv4.tcp_tw_reuse = 1
+```
+
+注意：远端 `/etc/sysctl.conf` 原本有 `net.ipv4.tcp_max_syn_backlog = 1024`，已改为 `65535`，同时保留 `/etc/sysctl.d/zz-lingniu-vehicle-ingest.conf`。
+
+部署后验证：
+
+- `current` 指向 `100k-hardening-20260703175730`。
+- `20211/20212/20213/20214/20200` readyz 均为 ok。
+- `808`、`32960`、`20200`、`20211-20214` 监听 backlog 均显示 `65535`。
+- Gateway 重启后持续接收 GB32960、JT808、Yutong MQTT 帧。
+- 重启完成后窗口未发现 gateway/realtime-api 持续 error/fatal 日志。
+
 ## 下次恢复上下文时先做
 
 1. 读本文件。

docs/superpowers/plans/2026-07-03-100k-vehicle-ingest-hardening.md

@@ -420,12 +420,12 @@ git commit -m "docs: design tdengine batch writer"
 - Modify: `docs/ops/vehicle-ingest-runbook.md`
 - Modify: `docs/ops/go-vehicle-ingest-memory.md`
 
-- [ ] **Step 1: Apply sysctl changes on ECS**
+- [x] **Step 1: Apply sysctl changes on ECS**
 
 Run on ECS:
 
 ```bash
-cat >/etc/sysctl.d/99-lingniu-vehicle-ingest.conf <<'EOF'
+cat >/etc/sysctl.d/zz-lingniu-vehicle-ingest.conf <<'EOF'
 net.core.somaxconn = 65535
 net.ipv4.tcp_max_syn_backlog = 65535
 net.ipv4.ip_local_port_range = 10000 65000
@@ -434,7 +434,7 @@ EOF
 sysctl --system
 ```
 
-- [ ] **Step 2: Verify sysctl**
+- [x] **Step 2: Verify sysctl**
 
 Run:
 
@@ -451,7 +451,7 @@ net.ipv4.ip_local_port_range = 10000 65000
 net.ipv4.tcp_tw_reuse = 1
 ```
 
-- [ ] **Step 3: Restart gateway**
+- [x] **Step 3: Restart gateway**
 
 Run:
 
@@ -461,10 +461,12 @@ curl -fsS http://127.0.0.1:20211/readyz
 ss -ltnp | grep -E ':(808|32960|20211) '
 ```
 
-- [ ] **Step 4: Document rollout**
+- [x] **Step 4: Document rollout**
 
 Add the applied sysctl values and timestamp to `docs/ops/go-vehicle-ingest-memory.md`.
 
+Actual release: `/opt/lingniu-go-native/releases/100k-hardening-20260703175730`.
+
 - [ ] **Step 5: Commit**
 
 ```bash