feat(app): 实现优雅停机功能
- 新增 shuttingDown 原子布尔标志和 shutdownOnce 保证单次执行 - 添加 DrainTimeout 和 ShutdownTimeout 配置参数,默认 5s 和 30s - 修改 ServeHTTP 拦截新请求返回 503 Service Unavailable - 实现跨平台信号处理:Windows 关窗口和 Linux SIGTERM/SIGINT - 添加 recover 保护避免停机过程中 panic 触发重启 - 优化 HTTP 服务退出判断,排除正常关闭情况 - 新增 log.LoggerNoCaller 用于访问日志等无意义调用方场景 - 更新 README 文档增加优雅停机特性说明和文档链接 - 创建详细的优雅停机文档和测试用例 - 添加 Windows 平台特定信号处理实现 - 新增 .cursor 计划文件记录开发方案
This commit is contained in:
@@ -0,0 +1,250 @@
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---
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name: 优雅停机方案
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overview: 在 HoTime 框架层实现优雅停机,跨平台(Windows/Linux)支持。收到信号后新请求立即返回 503 让 nginx 切流,等排空后调用 http.Server.Shutdown 等在途请求完成,exit(0) 退出,run_xbc.cmd 检测正常退出不重启。
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todos:
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- id: framework-core
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content: hotimev1.5/application.go:新增 shuttingDown/shutdownOnce/DrainTimeout/ShutdownTimeout 字段,改 ServeHTTP,改 Run() 信号 goroutine,改 recover 保护,提取 initiateGracefulShutdown()
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status: completed
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- id: framework-windows
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content: hotimev1.5/signal_windows.go(新建):SetConsoleCtrlHandler 处理 CTRL_CLOSE_EVENT(关窗口)
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status: completed
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- id: framework-other
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content: hotimev1.5/signal_other.go(新建):非 Windows 平台 registerWindowsCloseHandler() 空实现
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status: completed
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- id: nginx-config
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content: Nginx location 块加 proxy_next_upstream error timeout http_503 和 proxy_next_upstream_tries 2
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status: completed
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- id: cmd-exit-check
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content: run_xbc.cmd:检测 EXIT_CODE == 0 时不重启直接退出
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status: completed
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- id: docs
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content: 新建 hotimev1.5/docs/graceful-shutdown.md 文档
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status: completed
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isProject: false
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---
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# 优雅停机方案
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## 整体流程
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```mermaid
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sequenceDiagram
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participant Op as 运维
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participant OS as 操作系统
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participant App as Go 进程
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participant Nginx as Nginx
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Op->>OS: Ctrl+C / kill / taskkill / 关窗口
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OS->>App: SIGINT / SIGTERM / CTRL_CLOSE_EVENT
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App->>App: shuttingDown = true(sync.Once 保证只执行一次)
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Note over App,Nginx: 新请求立即返回 503 + Connection:close
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Nginx->>App: 新请求
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App-->>Nginx: 503 Service Unavailable
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Nginx->>Nginx: proxy_next_upstream http_503 → 转另一台
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Note over App: 等 DrainTimeout(默认5s,让nginx完成切流)
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App->>App: server.Shutdown(ShutdownTimeout=30s)
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Note over App: 等所有在途请求跑完
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App->>OS: os.Exit(0)
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Note over Op: run_xbc.cmd 检测 exit 0 → 不重启
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```
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## 信号触发场景对照表
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| 操作方式 | 平台 | 信号/事件 | 是否可拦截 | 备注 |
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|---|---|---|---|---|
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| Ctrl+C | Windows/Linux | `os.Interrupt` | ✅ | 标准中断 |
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| `kill <pid>` 或 `kill -15 <pid>` | Linux | `syscall.SIGTERM` | ✅ | 推荐生产关闭方式 |
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| `taskkill /PID <pid>`(无 /F) | Windows | `os.Interrupt` | ✅ | 等价于 Ctrl+C |
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| 关闭控制台窗口 X 按钮 | Windows | `CTRL_CLOSE_EVENT` | ✅(≤5s 限制)| Windows 给 ~5s 后强杀 |
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| `taskkill /F /PID <pid>` | Windows | 强制 SIGKILL | ❌ | 无法拦截,强杀 |
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| `kill -9 <pid>` | Linux | SIGKILL | ❌ | 无法拦截,强杀 |
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> **关窗口说明**:Windows 在触发 `CTRL_CLOSE_EVENT` 后约 5 秒会强制结束进程。框架对此事件使用更短的 drain(默认 2s)+ shutdown(默认 3s),总计 <5s,可完成正在跑的短接口;长接口(>3s)会被截断。推荐用 `taskkill /PID` 代替关窗口做计划性停机。
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---
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## 需要改动/新建的文件
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### 1. [`hotimev1.5/application.go`](d:/work/hotimev1.5/application.go)
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**`Application` struct** 新增字段:
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```go
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type Application struct {
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// ...原有字段...
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shuttingDown atomic.Bool
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shutdownOnce sync.Once // 保证多路触发只执行一次
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DrainTimeout time.Duration // 等 nginx 切流,默认 5s
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ShutdownTimeout time.Duration // 等在途请求,默认 30s
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}
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```
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**`ServeHTTP`** 新增停机检测:
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```go
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func (that *Application) ServeHTTP(w http.ResponseWriter, req *http.Request) {
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if that.shuttingDown.Load() {
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w.Header().Set("Connection", "close")
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http.Error(w, "Service Unavailable", http.StatusServiceUnavailable)
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return
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}
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that.handler(w, req)
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}
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```
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**提取 `initiateGracefulShutdown(drain, shutdown time.Duration)` 方法**(被信号 goroutine 和 Windows 关窗 handler 共同调用):
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```go
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func (that *Application) initiateGracefulShutdown(drain, shutdown time.Duration) {
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that.shutdownOnce.Do(func() {
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that.shuttingDown.Store(true)
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that.Log.Infof("优雅停机:等 %v 让 nginx 切流...", drain)
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time.Sleep(drain)
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ctx, cancel := context.WithTimeout(context.Background(), shutdown)
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defer cancel()
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that.Log.Infof("等进行中请求完成(最多 %v)...", shutdown)
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if err := that.Server.Shutdown(ctx); err != nil {
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that.Log.Errorf("优雅停机超时: %v", err)
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}
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that.Log.Infof("服务已安全关闭")
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os.Exit(0)
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})
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}
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```
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**`Run()`** 加信号监听 goroutine(在启动 ListenAndServe 之后):
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```go
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// 注册 Windows 关窗口处理(Linux 上是空实现)
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that.registerWindowsCloseHandler()
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// 跨平台:Ctrl+C / SIGTERM / kill
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go func() {
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sigCh := make(chan os.Signal, 1)
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signal.Notify(sigCh, os.Interrupt, syscall.SIGTERM)
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<-sigCh
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drain := that.DrainTimeout
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if drain == 0 { drain = 5 * time.Second }
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shutdown := that.ShutdownTimeout
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if shutdown == 0 { shutdown = 30 * time.Second }
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that.initiateGracefulShutdown(drain, shutdown)
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}()
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```
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**`defer recover`** 加停机保护:
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```go
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defer func() {
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if err := recover(); err != nil {
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if that.shuttingDown.Load() {
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return // 停机中的 panic 不触发重启
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}
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that.Log.Warnf("%v", err)
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that.Run(router)
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}
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}()
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```
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新增 import:`"context"`, `"os/signal"`, `"sync"`, `"sync/atomic"`, `"syscall"`
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---
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### 2. `hotimev1.5/signal_windows.go`(新建)
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```go
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//go:build windows
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package hotime
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import (
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"time"
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"golang.org/x/sys/windows"
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)
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func (that *Application) registerWindowsCloseHandler() {
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windows.SetConsoleCtrlHandler(func(ctrl uint32) bool {
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// CTRL_CLOSE_EVENT=2 CTRL_LOGOFF_EVENT=5 CTRL_SHUTDOWN_EVENT=6
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if ctrl == 2 || ctrl == 5 || ctrl == 6 {
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that.initiateGracefulShutdown(2*time.Second, 3*time.Second)
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// 阻塞此回调,让 initiateGracefulShutdown 内的 os.Exit(0) 执行
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// Windows 约 5s 后强杀,这里最多等 6s 兜底
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time.Sleep(6 * time.Second)
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return true
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}
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return false
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}, true)
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}
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```
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> `golang.org/x/sys` 已在 `xbc/go.mod` 中作为间接依赖存在(v0.29.0),无需新增依赖。
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---
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### 3. `hotimev1.5/signal_other.go`(新建)
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```go
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//go:build !windows
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package hotime
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func (that *Application) registerWindowsCloseHandler() {}
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```
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---
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### 4. Nginx 配置(在已有 location 块中追加)
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```nginx
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# 让后端返回 503 时自动切换到另一台(优雅停机核心)
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proxy_next_upstream error timeout http_503;
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proxy_next_upstream_tries 2;
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```
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已有的 `max_fails=1 fail_timeout=3s` 负责连接级失败(强杀后的端口拒绝),两者互补。
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---
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### 5. [`run_xbc.cmd`](d:/work/xbc/run_xbc.cmd)
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在 `goto run_app` 前插入 exit code 判断:
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```cmd
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:: 优雅退出 (exit 0) 不重启
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if %EXIT_CODE% EQU 0 (
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echo [%date% %time%] Graceful shutdown. Not restarting. >> "%LOG_FILE%"
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echo.
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echo [优雅停机] 服务已安全关闭,不再自动重启。
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pause
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exit /b 0
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)
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```
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---
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### 6. `hotimev1.5/docs/graceful-shutdown.md`(新建)
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包含:原理说明、场景对照表、nginx 配置、滚动重启步骤、参数说明(DrainTimeout/ShutdownTimeout)。
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---
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## 滚动重启操作步骤(Windows)
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```
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# 1. 找到端口 9998 的进程 PID
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netstat -ano | findstr 9998
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# 2. 优雅关闭该实例(不加 /F)
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taskkill /PID <pid>
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# 3. 等日志出现 "服务已安全关闭" 后再部署新版并启动
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# 4. 再对 9999 执行同样操作
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```
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## 滚动重启操作步骤(Linux)
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```bash
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# 找 PID
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pgrep xbc # 或 ps aux | grep xbc
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# 优雅关闭
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kill <pid> # 发 SIGTERM,触发优雅停机
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# 或
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kill -2 <pid> # 发 SIGINT,等同 Ctrl+C
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# 等日志出现 "服务已安全关闭" 再部署新版
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```
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@@ -17,6 +17,7 @@ D:\app\go1.23.1\bin\go.exe test ./dd/... -v
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- **Session 管理** - 内置会话管理,支持多种存储后端
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- **代码生成** - 根据数据库表自动生成 CRUD 接口
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- **API 测试** - 内置接口测试框架,链式 API、事务自动回滚、覆盖率报告、交互式调试控制台
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- **优雅停机** - 跨平台(Windows/Linux)支持,停机时自动拒绝新请求并等待在途请求完成,配合 nginx 实现零停机滚动重启
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- **开箱即用** - 微信支付/公众号/小程序、阿里云、腾讯云等 SDK 内置
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## 文档
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@@ -31,6 +32,7 @@ D:\app\go1.23.1\bin\go.exe test ./dd/... -v
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| [数据库设计规范](docs/DatabaseDesign_数据库设计规范.md) | 表命名、字段命名、时间类型、必有字段规范 |
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| [代码生成配置规范](docs/CodeConfig_代码生成配置规范.md) | codeConfig、菜单权限、字段规则配置说明 |
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| [API 测试框架](docs/Testing_API测试框架.md) | 接口测试、事务隔离、覆盖率追踪、API 调试控制台生成 |
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| [优雅停机](docs/graceful-shutdown.md) | 跨平台优雅停机、nginx 配置、滚动重启操作指南 |
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| [改进规划](docs/ROADMAP_改进规划.md) | 待改进项、设计思考、版本迭代规划 |
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## 安装
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@@ -67,6 +69,7 @@ go get code.hoteas.com/golang/hotime
|
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| Session | ✅ 内置 | ❌ 需插件 | ❌ 需插件 | ❌ 需插件 |
|
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| 代码生成 | ✅ | ❌ | ❌ | ❌ |
|
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| API 测试框架 | ✅ 内置 | ❌ 需插件 | ❌ 需插件 | ❌ 需插件 |
|
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| 优雅停机 | ✅ 内置跨平台 | ❌ 需自行实现 | ❌ 需自行实现 | ✅ 内置 |
|
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| 微信/支付集成 | ✅ 内置 | ❌ | ❌ | ❌ |
|
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|
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## 适用场景
|
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|
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+61
-1
@@ -1,14 +1,19 @@
|
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package hotime
|
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|
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import (
|
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"context"
|
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"database/sql"
|
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"io/ioutil"
|
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"net/http"
|
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"net/url"
|
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"os"
|
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"os/signal"
|
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"path/filepath"
|
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"strconv"
|
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"strings"
|
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"sync"
|
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"sync/atomic"
|
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"syscall"
|
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"time"
|
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|
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. "code.hoteas.com/golang/hotime/cache"
|
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@@ -34,12 +39,41 @@ type Application struct {
|
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*HoTimeCache
|
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*http.Server
|
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http.Handler
|
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shuttingDown atomic.Bool // 停机标志,置为 true 后新请求立即返回 503
|
||||
shutdownOnce sync.Once // 保证多路触发(信号/关窗口)只执行一次
|
||||
DrainTimeout time.Duration // 返回 503 后等 nginx 切流的时长,默认 5s
|
||||
ShutdownTimeout time.Duration // 等在途请求完成的最长时间,默认 30s
|
||||
}
|
||||
|
||||
func (that *Application) ServeHTTP(w http.ResponseWriter, req *http.Request) {
|
||||
if that.shuttingDown.Load() {
|
||||
w.Header().Set("Connection", "close")
|
||||
http.Error(w, "Service Unavailable", http.StatusServiceUnavailable)
|
||||
return
|
||||
}
|
||||
that.handler(w, req)
|
||||
}
|
||||
|
||||
// initiateGracefulShutdown 触发优雅停机,通过 sync.Once 保证多路触发只执行一次。
|
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// drain: 返回 503 后等待上游(nginx)完成流量切换的时长。
|
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// shutdown: 等待在途请求完成的最长时间。
|
||||
func (that *Application) initiateGracefulShutdown(drain, shutdown time.Duration) {
|
||||
that.shutdownOnce.Do(func() {
|
||||
that.shuttingDown.Store(true)
|
||||
that.Log.Infof("优雅停机:新请求已返回 503,等 %v 让 nginx 完成流量切换...", drain)
|
||||
time.Sleep(drain)
|
||||
ctx, cancel := context.WithTimeout(context.Background(), shutdown)
|
||||
defer cancel()
|
||||
that.Log.Infof("停止接受新连接,等进行中请求完成(最多 %v)...", shutdown)
|
||||
if err := that.Server.Shutdown(ctx); err != nil {
|
||||
that.Log.Errorf("优雅停机超时,强制关闭: %v", err)
|
||||
} else {
|
||||
that.Log.Infof("服务已安全关闭")
|
||||
}
|
||||
os.Exit(0)
|
||||
})
|
||||
}
|
||||
|
||||
// Run 启动实例
|
||||
func (that *Application) Run(router Router) {
|
||||
//如果没有设置配置自动生成配置
|
||||
@@ -125,6 +159,9 @@ func (that *Application) Run(router Router) {
|
||||
//异常处理
|
||||
defer func() {
|
||||
if err := recover(); err != nil {
|
||||
if that.shuttingDown.Load() {
|
||||
return // 停机过程中的 panic 不触发重启
|
||||
}
|
||||
//that.SetError(errors.New(fmt.Sprint(err)), LOG_FMT)
|
||||
that.Log.Warnf("%v", err)
|
||||
|
||||
@@ -146,8 +183,10 @@ func (that *Application) Run(router Router) {
|
||||
//启动服务
|
||||
that.Server.Addr = ":" + that.Port
|
||||
err := that.Server.ListenAndServe()
|
||||
if err != nil && err != http.ErrServerClosed {
|
||||
that.Log.Error().Err(err).Msg("HTTP 服务退出")
|
||||
ch <- 1
|
||||
}
|
||||
|
||||
}()
|
||||
}
|
||||
@@ -160,8 +199,10 @@ func (that *Application) Run(router Router) {
|
||||
//启动服务
|
||||
that.Server.Addr = ":" + that.TLSPort
|
||||
err := that.Server.ListenAndServeTLS(that.Config.GetString("tlsCert"), that.Config.GetString("tlsKey"))
|
||||
if err != nil && err != http.ErrServerClosed {
|
||||
that.Log.Error().Err(err).Msg("HTTPS 服务退出")
|
||||
ch <- 2
|
||||
}
|
||||
|
||||
}()
|
||||
}
|
||||
@@ -171,6 +212,25 @@ func (that *Application) Run(router Router) {
|
||||
|
||||
}
|
||||
|
||||
// 注册 Windows 关窗口处理(Linux/macOS 上是空实现)
|
||||
that.registerWindowsCloseHandler()
|
||||
|
||||
// 跨平台信号监听:Ctrl+C / SIGTERM(kill 命令)/ taskkill /PID
|
||||
go func() {
|
||||
sigCh := make(chan os.Signal, 1)
|
||||
signal.Notify(sigCh, os.Interrupt, syscall.SIGTERM)
|
||||
<-sigCh
|
||||
drain := that.DrainTimeout
|
||||
if drain == 0 {
|
||||
drain = 5 * time.Second
|
||||
}
|
||||
shutdown := that.ShutdownTimeout
|
||||
if shutdown == 0 {
|
||||
shutdown = 30 * time.Second
|
||||
}
|
||||
that.initiateGracefulShutdown(drain, shutdown)
|
||||
}()
|
||||
|
||||
value := <-ch
|
||||
|
||||
that.Log.Errorf("启动服务失败 : %s", ObjToStr(value))
|
||||
@@ -256,7 +316,7 @@ func (that *Application) SetConfig(configPath ...string) {
|
||||
that.Log = log.NewLogger(logLevel, logFile, logHistory)
|
||||
that.Db.Log = that.Log
|
||||
if that.Config.Get("webConnectLogShow") == nil || that.Config.GetBool("webConnectLogShow") {
|
||||
that.WebConnectLog = log.NewLogger(1, that.Config.GetString("webConnectLogFile"), 0)
|
||||
that.WebConnectLog = log.NewLoggerNoCaller(1, that.Config.GetString("webConnectLogFile"), 0)
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
+2
-2
@@ -669,7 +669,7 @@ func (that *MakeCode) Db2JSON(db *db.HoTimeDB, config Map) {
|
||||
if err != nil {
|
||||
that.Log.Error().Err(err).Msg("写入 configDB 文件失败")
|
||||
}
|
||||
that.Log.Warnf("新建 configDB: %s", config.GetString("configDB"))
|
||||
that.Log.Infof("新建 configDB: %s", config.GetString("configDB"))
|
||||
|
||||
}
|
||||
|
||||
@@ -685,7 +685,7 @@ func (that *MakeCode) Db2JSON(db *db.HoTimeDB, config Map) {
|
||||
if err != nil {
|
||||
that.Log.Error().Err(err).Msg("写入 config 文件失败")
|
||||
}
|
||||
that.Log.Warnf("新建 config: %s", config.GetString("config"))
|
||||
that.Log.Infof("新建 config: %s", config.GetString("config"))
|
||||
|
||||
}
|
||||
//fmt.Println("有新的代码生成,请重新运行")
|
||||
|
||||
@@ -0,0 +1,143 @@
|
||||
# HoTime 框架优雅停机
|
||||
|
||||
## 概述
|
||||
|
||||
HoTime 框架内置优雅停机支持,收到关闭信号后:
|
||||
|
||||
1. **立即**对所有新请求返回 `503 Service Unavailable`,触发 nginx 把流量切到其他实例
|
||||
2. **等待** `DrainTimeout`(默认 5 秒)让 nginx 完成流量切换
|
||||
3. **等待**所有正在处理的请求完成(最多 `ShutdownTimeout`,默认 30 秒)
|
||||
4. 以 `exit(0)` 正常退出,`run_xbc.cmd` 检测到正常退出后不自动重启
|
||||
|
||||
---
|
||||
|
||||
## 触发方式对照表
|
||||
|
||||
| 操作 | 平台 | 是否可优雅停机 | 说明 |
|
||||
|---|---|:---:|---|
|
||||
| `Ctrl+C` | Windows / Linux | ✅ | 发送 SIGINT / os.Interrupt |
|
||||
| `kill <pid>` 或 `kill -15 <pid>` | Linux | ✅ | **推荐**,发送 SIGTERM |
|
||||
| `kill -2 <pid>` | Linux | ✅ | 等同 Ctrl+C,发送 SIGINT |
|
||||
| `taskkill /PID <pid>`(不加 /F) | Windows | ✅ | **推荐**,等同发送 Ctrl+C |
|
||||
| 关闭控制台/exe 窗口 X 按钮 | Windows | ✅(≤5s) | CTRL_CLOSE_EVENT,Windows 约 5s 后强杀 |
|
||||
| `taskkill /F /PID <pid>` | Windows | ❌ | 强制 SIGKILL,无法拦截 |
|
||||
| `kill -9 <pid>` | Linux | ❌ | SIGKILL,无法拦截 |
|
||||
|
||||
> **关窗口的限制**:Windows 系统在触发 CTRL_CLOSE_EVENT 后约 5 秒会强制杀死进程。
|
||||
> 框架对此路径使用更短的 drain(2s) + shutdown(3s),总计 <5s。
|
||||
> 如果有接口执行时间超过 3 秒,建议改用 `taskkill /PID` 做计划性停机,不受 5s 限制。
|
||||
|
||||
---
|
||||
|
||||
## 配置参数
|
||||
|
||||
在 `Application` 实例上设置(需在调用 `Run()` 前配置):
|
||||
|
||||
```go
|
||||
appIns := Init("config/config.json")
|
||||
|
||||
// 可选:自定义超时,不设置则使用默认值
|
||||
appIns.DrainTimeout = 5 * time.Second // 等 nginx 切流,默认 5s
|
||||
appIns.ShutdownTimeout = 30 * time.Second // 等在途请求完成,默认 30s
|
||||
|
||||
appIns.Run(Router{ ... })
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Nginx 配置
|
||||
|
||||
在 `location` 块中添加以下两行,让后端返回 `503` 时 nginx 自动转到其他实例,客户端无感知:
|
||||
|
||||
```nginx
|
||||
upstream api_backend {
|
||||
least_conn;
|
||||
keepalive 64;
|
||||
server 127.0.0.1:9998 max_fails=1 fail_timeout=3s;
|
||||
server 127.0.0.1:9999 max_fails=1 fail_timeout=3s;
|
||||
}
|
||||
|
||||
server {
|
||||
location /api/ {
|
||||
proxy_pass http://api_backend;
|
||||
|
||||
# 优雅停机核心配置:后端返回 503 时自动切换到另一台
|
||||
proxy_next_upstream error timeout http_503;
|
||||
proxy_next_upstream_tries 2;
|
||||
|
||||
# 其他常规配置...
|
||||
proxy_set_header Host $host;
|
||||
proxy_set_header X-Real-IP $remote_addr;
|
||||
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
- `max_fails=1 fail_timeout=3s`:连接级失败(如强杀后端口拒绝)时标记下线 3s
|
||||
- `proxy_next_upstream http_503`:应用级 503 时 nginx 自动重试下一台
|
||||
|
||||
---
|
||||
|
||||
## 滚动重启步骤
|
||||
|
||||
### Windows
|
||||
|
||||
```cmd
|
||||
:: 1. 查找端口 9998 的进程 PID
|
||||
netstat -ano | findstr :9998
|
||||
|
||||
:: 2. 优雅关闭该实例(不加 /F,发送 Ctrl+C 信号)
|
||||
taskkill /PID <pid>
|
||||
|
||||
:: 3. 观察日志,出现"服务已安全关闭"后,部署新版并启动
|
||||
:: run_xbc.cmd 检测到 exit(0) 后不会自动重启
|
||||
|
||||
:: 4. 对端口 9999 重复以上步骤
|
||||
netstat -ano | findstr :9999
|
||||
taskkill /PID <pid2>
|
||||
```
|
||||
|
||||
### Linux
|
||||
|
||||
```bash
|
||||
# 1. 查找进程 PID
|
||||
pgrep -a xbc # 或
|
||||
ps aux | grep xbc
|
||||
|
||||
# 2. 优雅关闭(发送 SIGTERM)
|
||||
kill <pid>
|
||||
|
||||
# 3. 观察日志确认关闭完成
|
||||
tail -f logs/xbc.log # 等待"服务已安全关闭"
|
||||
|
||||
# 4. 部署新版并启动,再对另一个实例重复
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 工作原理
|
||||
|
||||
```
|
||||
收到信号 / 关窗口
|
||||
│
|
||||
▼
|
||||
shuttingDown = true
|
||||
│
|
||||
▼ DrainTimeout(默认 5s)
|
||||
新请求 → 503 ──────────────────────► nginx 切流到另一台
|
||||
│
|
||||
▼
|
||||
server.Shutdown(ShutdownTimeout=30s)
|
||||
等待所有进行中请求跑完
|
||||
│
|
||||
▼
|
||||
os.Exit(0) → run_xbc.cmd 检测到 exit(0),不重启
|
||||
```
|
||||
|
||||
### 为何在框架层而非应用层实现
|
||||
|
||||
通过 `appIns.Run(Router{...})` 启动服务,信号处理与 `http.Server` 生命周期强绑定,必须在框架的 `Run()` 方法内才能正确管理。应用层无需任何修改,升级框架即自动获得优雅停机能力。
|
||||
|
||||
### `sync.Once` 保证幂等性
|
||||
|
||||
框架同时监听多路触发源(信号 goroutine + Windows 关窗口 handler),`sync.Once` 保证无论哪路先触发,`initiateGracefulShutdown` 只执行一次,不会重复调用 `Shutdown()`。
|
||||
@@ -0,0 +1,303 @@
|
||||
package hotime
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"net"
|
||||
"net/http"
|
||||
"sync"
|
||||
"sync/atomic"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
"code.hoteas.com/golang/hotime/log"
|
||||
)
|
||||
|
||||
// getFreePort 获取一个可用的随机端口
|
||||
func getFreePort() (int, error) {
|
||||
ln, err := net.Listen("tcp", "127.0.0.1:0")
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
port := ln.Addr().(*net.TCPAddr).Port
|
||||
ln.Close()
|
||||
return port, nil
|
||||
}
|
||||
|
||||
// newTestApp 创建一个用于测试的最小 Application,不依赖数据库和配置文件
|
||||
func newTestApp(port int, handler http.HandlerFunc) *Application {
|
||||
app := &Application{}
|
||||
app.Log = log.NewLogger(1, "", 10)
|
||||
app.Server = &http.Server{
|
||||
Addr: fmt.Sprintf(":%d", port),
|
||||
Handler: app,
|
||||
}
|
||||
// 用自定义 handler 替代完整的路由系统
|
||||
app.Handler = handler
|
||||
return app
|
||||
}
|
||||
|
||||
// ServeHTTP 已经在 application.go 中定义,
|
||||
// 但 handler 方法依赖完整初始化,这里我们直接用 http.Handler 接口。
|
||||
// 因此测试 app 的 ServeHTTP 会先检查 shuttingDown,然后调用 that.handler()。
|
||||
// 但 that.handler() 需要完整的路由初始化,不适合单元测试。
|
||||
// 所以我们直接测试核心逻辑:shuttingDown 标志 + http.Server.Shutdown。
|
||||
|
||||
// TestServeHTTP_ShuttingDown 测试停机标志置为 true 后新请求返回 503
|
||||
func TestServeHTTP_ShuttingDown(t *testing.T) {
|
||||
port, err := getFreePort()
|
||||
if err != nil {
|
||||
t.Fatalf("获取空闲端口失败: %v", err)
|
||||
}
|
||||
|
||||
var requestHandled atomic.Int32
|
||||
handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
requestHandled.Add(1)
|
||||
w.WriteHeader(http.StatusOK)
|
||||
w.Write([]byte("OK"))
|
||||
})
|
||||
|
||||
app := &Application{}
|
||||
app.Log = log.NewLogger(1, "", 10)
|
||||
app.Server = &http.Server{
|
||||
Addr: fmt.Sprintf(":%d", port),
|
||||
}
|
||||
app.Server.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
if app.shuttingDown.Load() {
|
||||
w.Header().Set("Connection", "close")
|
||||
http.Error(w, "Service Unavailable", http.StatusServiceUnavailable)
|
||||
return
|
||||
}
|
||||
handler.ServeHTTP(w, r)
|
||||
})
|
||||
|
||||
go app.Server.ListenAndServe()
|
||||
time.Sleep(100 * time.Millisecond)
|
||||
|
||||
baseURL := fmt.Sprintf("http://127.0.0.1:%d", port)
|
||||
client := &http.Client{Timeout: 5 * time.Second}
|
||||
|
||||
// --- 正常请求应该返回 200 ---
|
||||
resp, err := client.Get(baseURL + "/test")
|
||||
if err != nil {
|
||||
t.Fatalf("正常请求失败: %v", err)
|
||||
}
|
||||
if resp.StatusCode != http.StatusOK {
|
||||
t.Fatalf("期望 200,实际 %d", resp.StatusCode)
|
||||
}
|
||||
resp.Body.Close()
|
||||
t.Logf("[PASS] 正常请求返回 %d", resp.StatusCode)
|
||||
|
||||
if requestHandled.Load() != 1 {
|
||||
t.Fatalf("期望 handler 被调用 1 次,实际 %d 次", requestHandled.Load())
|
||||
}
|
||||
|
||||
// --- 设置停机标志 ---
|
||||
app.shuttingDown.Store(true)
|
||||
t.Log("[INFO] shuttingDown 已置为 true")
|
||||
|
||||
// --- 停机后请求应该返回 503 ---
|
||||
resp2, err := client.Get(baseURL + "/test2")
|
||||
if err != nil {
|
||||
t.Fatalf("停机请求失败: %v", err)
|
||||
}
|
||||
if resp2.StatusCode != http.StatusServiceUnavailable {
|
||||
t.Fatalf("期望 503,实际 %d", resp2.StatusCode)
|
||||
}
|
||||
resp2.Body.Close()
|
||||
t.Logf("[PASS] 停机后请求返回 %d", resp2.StatusCode)
|
||||
|
||||
// handler 不应被再次调用
|
||||
if requestHandled.Load() != 1 {
|
||||
t.Fatalf("停机后 handler 不应被调用,但被调用了 %d 次", requestHandled.Load())
|
||||
}
|
||||
t.Log("[PASS] 停机后 handler 未被调用")
|
||||
|
||||
app.Server.Close()
|
||||
}
|
||||
|
||||
// TestGracefulShutdown_InFlightRequestCompletes 测试优雅停机等待在途请求完成
|
||||
func TestGracefulShutdown_InFlightRequestCompletes(t *testing.T) {
|
||||
port, err := getFreePort()
|
||||
if err != nil {
|
||||
t.Fatalf("获取空闲端口失败: %v", err)
|
||||
}
|
||||
|
||||
slowRequestStarted := make(chan struct{})
|
||||
slowRequestDone := make(chan struct{})
|
||||
|
||||
app := &Application{}
|
||||
app.Log = log.NewLogger(1, "", 10)
|
||||
app.Server = &http.Server{
|
||||
Addr: fmt.Sprintf(":%d", port),
|
||||
}
|
||||
app.Server.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
if app.shuttingDown.Load() {
|
||||
w.Header().Set("Connection", "close")
|
||||
http.Error(w, "Service Unavailable", http.StatusServiceUnavailable)
|
||||
return
|
||||
}
|
||||
if r.URL.Path == "/slow" {
|
||||
close(slowRequestStarted)
|
||||
time.Sleep(2 * time.Second) // 模拟慢接口
|
||||
w.WriteHeader(http.StatusOK)
|
||||
w.Write([]byte("SLOW_DONE"))
|
||||
close(slowRequestDone)
|
||||
return
|
||||
}
|
||||
w.WriteHeader(http.StatusOK)
|
||||
w.Write([]byte("OK"))
|
||||
})
|
||||
|
||||
go app.Server.ListenAndServe()
|
||||
time.Sleep(100 * time.Millisecond)
|
||||
|
||||
baseURL := fmt.Sprintf("http://127.0.0.1:%d", port)
|
||||
client := &http.Client{Timeout: 10 * time.Second}
|
||||
|
||||
// --- 发起慢请求(模拟在途请求)---
|
||||
var slowResp *http.Response
|
||||
var slowErr error
|
||||
var wg sync.WaitGroup
|
||||
wg.Add(1)
|
||||
go func() {
|
||||
defer wg.Done()
|
||||
slowResp, slowErr = client.Get(baseURL + "/slow")
|
||||
}()
|
||||
|
||||
// 等慢请求开始处理
|
||||
<-slowRequestStarted
|
||||
t.Log("[INFO] 慢请求已开始处理")
|
||||
|
||||
// --- 在慢请求进行中触发 Shutdown ---
|
||||
app.shuttingDown.Store(true)
|
||||
t.Log("[INFO] shuttingDown 已置为 true,开始 Shutdown")
|
||||
|
||||
shutdownDone := make(chan struct{})
|
||||
go func() {
|
||||
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
|
||||
defer cancel()
|
||||
app.Server.Shutdown(ctx)
|
||||
close(shutdownDone)
|
||||
}()
|
||||
|
||||
// --- 新请求应该返回 503(但因为 Shutdown 不接受新连接了,可能连接被拒绝)---
|
||||
// Shutdown 调用后,新的 TCP 连接也会被拒绝,所以这里验证连接级别的拒绝也OK
|
||||
resp, err := client.Get(baseURL + "/new")
|
||||
if err != nil {
|
||||
t.Logf("[PASS] Shutdown 后新请求连接被拒绝(预期行为): %v", err)
|
||||
} else {
|
||||
if resp.StatusCode == http.StatusServiceUnavailable {
|
||||
t.Logf("[PASS] Shutdown 后新请求返回 503")
|
||||
} else {
|
||||
t.Logf("[INFO] Shutdown 后新请求返回 %d", resp.StatusCode)
|
||||
}
|
||||
resp.Body.Close()
|
||||
}
|
||||
|
||||
// --- 等待慢请求完成 ---
|
||||
wg.Wait()
|
||||
if slowErr != nil {
|
||||
t.Fatalf("慢请求返回错误(不应中断在途请求): %v", slowErr)
|
||||
}
|
||||
body, _ := ioutil.ReadAll(slowResp.Body)
|
||||
slowResp.Body.Close()
|
||||
|
||||
if slowResp.StatusCode != http.StatusOK {
|
||||
t.Fatalf("慢请求期望 200,实际 %d", slowResp.StatusCode)
|
||||
}
|
||||
if string(body) != "SLOW_DONE" {
|
||||
t.Fatalf("慢请求期望 body='SLOW_DONE',实际 '%s'", string(body))
|
||||
}
|
||||
t.Logf("[PASS] 慢请求正常完成,状态=%d,body=%s", slowResp.StatusCode, string(body))
|
||||
|
||||
// --- 等 Shutdown 完成 ---
|
||||
<-shutdownDone
|
||||
t.Log("[PASS] Server.Shutdown() 在慢请求完成后返回")
|
||||
|
||||
// 确认慢请求确实跑完了
|
||||
select {
|
||||
case <-slowRequestDone:
|
||||
t.Log("[PASS] 慢请求 handler 完整执行完毕")
|
||||
default:
|
||||
t.Fatal("慢请求 handler 未完整执行")
|
||||
}
|
||||
}
|
||||
|
||||
// TestShutdownOnce_MultipleSignals 测试多次触发只执行一次
|
||||
func TestShutdownOnce_MultipleSignals(t *testing.T) {
|
||||
var callCount atomic.Int32
|
||||
app := &Application{}
|
||||
app.Log = log.NewLogger(1, "", 10)
|
||||
app.Server = &http.Server{}
|
||||
|
||||
// 为了避免 os.Exit(0) 导致测试进程退出,
|
||||
// 我们直接测试 shutdownOnce + shuttingDown 逻辑
|
||||
var once sync.Once
|
||||
var shuttingDown atomic.Bool
|
||||
|
||||
mockShutdown := func() {
|
||||
once.Do(func() {
|
||||
shuttingDown.Store(true)
|
||||
callCount.Add(1)
|
||||
})
|
||||
}
|
||||
|
||||
// 并发触发 10 次
|
||||
var wg sync.WaitGroup
|
||||
for i := 0; i < 10; i++ {
|
||||
wg.Add(1)
|
||||
go func() {
|
||||
defer wg.Done()
|
||||
mockShutdown()
|
||||
}()
|
||||
}
|
||||
wg.Wait()
|
||||
|
||||
if callCount.Load() != 1 {
|
||||
t.Fatalf("期望 shutdownOnce.Do 只执行 1 次,实际 %d 次", callCount.Load())
|
||||
}
|
||||
if !shuttingDown.Load() {
|
||||
t.Fatal("shuttingDown 应为 true")
|
||||
}
|
||||
t.Logf("[PASS] 10 次并发触发,shutdownOnce.Do 只执行了 %d 次", callCount.Load())
|
||||
}
|
||||
|
||||
// TestRecoverSkipsDuringShutdown 测试停机中的 panic 不触发重启
|
||||
func TestRecoverSkipsDuringShutdown(t *testing.T) {
|
||||
app := &Application{}
|
||||
app.Log = log.NewLogger(1, "", 10)
|
||||
|
||||
var restartCalled atomic.Bool
|
||||
|
||||
// 模拟 Run() 中的 defer recover 逻辑
|
||||
testRecover := func() {
|
||||
defer func() {
|
||||
if err := recover(); err != nil {
|
||||
if app.shuttingDown.Load() {
|
||||
return // 停机中不重启
|
||||
}
|
||||
restartCalled.Store(true)
|
||||
}
|
||||
}()
|
||||
panic("test panic")
|
||||
}
|
||||
|
||||
// 未停机时,recover 应触发"重启"
|
||||
restartCalled.Store(false)
|
||||
testRecover()
|
||||
if !restartCalled.Load() {
|
||||
t.Fatal("未停机时 panic 应触发重启")
|
||||
}
|
||||
t.Log("[PASS] 未停机时 panic 正确触发重启逻辑")
|
||||
|
||||
// 停机时,recover 不应触发"重启"
|
||||
app.shuttingDown.Store(true)
|
||||
restartCalled.Store(false)
|
||||
testRecover()
|
||||
if restartCalled.Load() {
|
||||
t.Fatal("停机时 panic 不应触发重启")
|
||||
}
|
||||
t.Log("[PASS] 停机时 panic 正确跳过重启逻辑")
|
||||
}
|
||||
+72
-6
@@ -89,6 +89,52 @@ func NewLogger(logLevel int, logFile string, maxErrors int) *Logger {
|
||||
return l
|
||||
}
|
||||
|
||||
// NewLoggerNoCaller 创建不带自动 Caller 字段的日志实例(用于访问日志等 caller 无意义的场景)
|
||||
func NewLoggerNoCaller(logLevel int, logFile string, maxErrors int) *Logger {
|
||||
zerolog.CallerMarshalFunc = callerMarshalFunc
|
||||
zerolog.TimeFieldFormat = "2006-01-02 15:04:05"
|
||||
|
||||
var level zerolog.Level
|
||||
if logLevel == 0 {
|
||||
level = zerolog.ErrorLevel
|
||||
} else {
|
||||
level = zerolog.DebugLevel
|
||||
}
|
||||
|
||||
consoleWriter := zerolog.ConsoleWriter{
|
||||
Out: os.Stderr,
|
||||
TimeFormat: "2006-01-02 15:04:05",
|
||||
NoColor: false,
|
||||
FormatLevel: formatLevelColor,
|
||||
}
|
||||
|
||||
var writers []io.Writer
|
||||
writers = append(writers, consoleWriter)
|
||||
|
||||
if logFile != "" {
|
||||
fw := &TemplateFileWriter{pathTemplate: logFile}
|
||||
writers = append(writers, fw)
|
||||
}
|
||||
|
||||
multi := zerolog.MultiLevelWriter(writers...)
|
||||
zl := zerolog.New(multi).
|
||||
Level(level).
|
||||
With().
|
||||
Timestamp().
|
||||
Logger()
|
||||
|
||||
l := &Logger{
|
||||
zl: zl,
|
||||
logLevel: logLevel,
|
||||
maxErrors: maxErrors,
|
||||
}
|
||||
if maxErrors > 0 {
|
||||
l.errors = make([]ErrorRecord, maxErrors)
|
||||
}
|
||||
|
||||
return l
|
||||
}
|
||||
|
||||
// NewTestLogger 创建用于测试的静默 Logger(输出到 io.Discard)
|
||||
func NewTestLogger() *Logger {
|
||||
zl := zerolog.New(io.Discard).Level(zerolog.Disabled)
|
||||
@@ -319,6 +365,8 @@ func callerMarshalFunc(_ uintptr, file string, line int) string {
|
||||
func findCaller(origFile string, origLine int) string {
|
||||
var lastInfraFile string
|
||||
var lastInfraLine int
|
||||
var primaryCaller string
|
||||
var appLayerCaller string
|
||||
|
||||
for i := 1; i < 20; i++ {
|
||||
_, file, line, ok := runtime.Caller(i)
|
||||
@@ -333,13 +381,28 @@ func findCaller(origFile string, origLine int) string {
|
||||
continue
|
||||
}
|
||||
|
||||
return fmt.Sprintf("%s:%d", shortFile, line)
|
||||
if primaryCaller == "" {
|
||||
primaryCaller = fmt.Sprintf("%s:%d", shortFile, line)
|
||||
}
|
||||
if appLayerCaller == "" && !strings.Contains(strings.ToLower(file), "hotime") {
|
||||
appLayerCaller = fmt.Sprintf("%s:%d", shortFile, line)
|
||||
}
|
||||
}
|
||||
|
||||
if lastInfraFile != "" {
|
||||
return fmt.Sprintf("%s:%d", lastInfraFile, lastInfraLine)
|
||||
result := ""
|
||||
if primaryCaller != "" {
|
||||
result = primaryCaller
|
||||
} else if lastInfraFile != "" {
|
||||
result = fmt.Sprintf("%s:%d", lastInfraFile, lastInfraLine)
|
||||
} else {
|
||||
result = fmt.Sprintf("%s:%d", shortenPath(origFile), origLine)
|
||||
}
|
||||
return fmt.Sprintf("%s:%d", shortenPath(origFile), origLine)
|
||||
|
||||
if appLayerCaller != "" && result != appLayerCaller {
|
||||
result += " <- " + appLayerCaller
|
||||
}
|
||||
|
||||
return result
|
||||
}
|
||||
|
||||
func formatCaller(file string, line int) string {
|
||||
@@ -361,8 +424,8 @@ func shortenPath(file string) string {
|
||||
|
||||
// isInfrastructureFile 判断文件是否为基础设施(日志/DB/缓存/通用工具)管线,
|
||||
// 这些文件在调用栈中会被跳过,以显示真正的业务调用者。
|
||||
// 框架业务文件(application.go、context.go、code/makecode.go 等)不在此列,
|
||||
// 会作为有意义的调用者返回。
|
||||
// context.go 是 Display/View 的纯中间层,也作为基础设施跳过。
|
||||
// application.go、code/makecode.go 等保留,会作为有意义的调用者返回。
|
||||
func isInfrastructureFile(file string) bool {
|
||||
if strings.HasPrefix(file, "zerolog/") || strings.HasPrefix(file, "zerolog@") {
|
||||
return true
|
||||
@@ -392,6 +455,9 @@ func isInfrastructureFile(file string) bool {
|
||||
return true
|
||||
}
|
||||
}
|
||||
if strings.HasSuffix(file, "/context.go") || strings.HasSuffix(file, "\\context.go") {
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
|
||||
@@ -0,0 +1,7 @@
|
||||
//go:build !windows
|
||||
|
||||
package hotime
|
||||
|
||||
// registerWindowsCloseHandler 在非 Windows 平台上是空实现。
|
||||
// Linux/macOS 通过 SIGTERM (kill) 或 SIGINT (Ctrl+C) 触发优雅停机。
|
||||
func (that *Application) registerWindowsCloseHandler() {}
|
||||
@@ -0,0 +1,31 @@
|
||||
//go:build windows
|
||||
|
||||
package hotime
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
"time"
|
||||
)
|
||||
|
||||
var kernel32 = syscall.NewLazyDLL("kernel32.dll")
|
||||
var procSetConsoleCtrlHandler = kernel32.NewProc("SetConsoleCtrlHandler")
|
||||
|
||||
// registerWindowsCloseHandler 注册 Windows 控制台关闭事件处理器,
|
||||
// 捕获用户点击控制台 X 按钮、系统注销/关机等事件,触发优雅停机。
|
||||
//
|
||||
// Windows 在 CTRL_CLOSE_EVENT 后约 5 秒会强制结束进程,
|
||||
// 因此此路径使用更短的 drain(2s)+shutdown(3s),总计 <5s。
|
||||
// 对于需要更长时间的场景,请改用 taskkill /PID 或 Ctrl+C。
|
||||
func (that *Application) registerWindowsCloseHandler() {
|
||||
handler := func(ctrl uintptr) uintptr {
|
||||
switch ctrl {
|
||||
case 2, 5, 6: // CTRL_CLOSE_EVENT=2, CTRL_LOGOFF_EVENT=5, CTRL_SHUTDOWN_EVENT=6
|
||||
that.initiateGracefulShutdown(2*time.Second, 3*time.Second)
|
||||
time.Sleep(6 * time.Second)
|
||||
return 1 // TRUE, 已处理
|
||||
}
|
||||
return 0 // FALSE, 交给下一个 handler
|
||||
}
|
||||
|
||||
procSetConsoleCtrlHandler.Call(syscall.NewCallback(handler), 1)
|
||||
}
|
||||
Reference in New Issue
Block a user