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7 changed files with 201 additions and 86 deletions
+7 -2
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@@ -342,8 +342,13 @@ pub fn (mut app Hono) listen(port string) {
return return
} }
// 默认使用 picoev 高性能服务器 // 使用优化配置的 picoev 高性能服务器(支持高并发)
app.listen_picoev(port_num) app.listen_picoev_with_config(PicoevConfig{
port: port_num
timeout_secs: 120 // 高并发场景需要更长超时
keepalive_timeout: 30 // Keep-Alive 超时 30 秒
max_keepalive_req: 10000 // 单连接最大请求数
})
} }
// 使用传统 http.Server 启动(保留兼容性) // 使用传统 http.Server 启动(保留兼容性)
+69
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@@ -0,0 +1,69 @@
# Quick concurrent test using runspaces
$url = "http://127.0.0.1:8888/"
$concurrency = 300
$requestsEach = 20
Write-Host "Testing $url with $concurrency concurrent workers, $requestsEach requests each"
Write-Host "Total: $($concurrency * $requestsEach) requests"
$runspacePool = [runspacefactory]::CreateRunspacePool(1, $concurrency)
$runspacePool.Open()
$scriptBlock = {
param($url, $count)
$s = 0; $f = 0
for ($i = 0; $i -lt $count; $i++) {
try {
$req = [System.Net.WebRequest]::Create($url)
$req.Timeout = 30000
$resp = $req.GetResponse()
if ($resp.StatusCode -eq "OK") { $s++ } else { $f++ }
$resp.Close()
} catch {
$f++
}
}
return @{Success=$s; Failed=$f}
}
$sw = [System.Diagnostics.Stopwatch]::StartNew()
$runspaces = @()
for ($i = 0; $i -lt $concurrency; $i++) {
$ps = [powershell]::Create()
$ps.RunspacePool = $runspacePool
$ps.AddScript($scriptBlock).AddArgument($url).AddArgument($requestsEach) | Out-Null
$runspaces += @{PS=$ps; Handle=$ps.BeginInvoke()}
}
$totalSuccess = 0
$totalFailed = 0
foreach ($rs in $runspaces) {
$result = $rs.PS.EndInvoke($rs.Handle)
$totalSuccess += $result.Success
$totalFailed += $result.Failed
$rs.PS.Dispose()
}
$sw.Stop()
$runspacePool.Close()
$total = $totalSuccess + $totalFailed
$rps = [math]::Round($total * 1000 / $sw.ElapsedMilliseconds, 2)
$rate = [math]::Round($totalSuccess * 100 / $total, 2)
Write-Host ""
Write-Host "Results:"
Write-Host " Total: $total"
Write-Host " Success: $totalSuccess"
Write-Host " Failed: $totalFailed"
Write-Host " Duration: $($sw.ElapsedMilliseconds) ms"
Write-Host " RPS: $rps"
Write-Host " Success Rate: $rate%"
if ($totalFailed -eq 0) {
Write-Host "PASSED - No connection errors!" -ForegroundColor Green
} else {
Write-Host "FAILED - $totalFailed errors occurred" -ForegroundColor Red
}
+45 -23
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@@ -1,40 +1,62 @@
# 已知问题 # 已知问题
## 1. HTTP Keep-Alive 连接复用不支持 ## 1. HTTP Keep-Alive 连接复用优化
**状态**: 等待 V 语言官方修复 **状态**: 已优化 (2025-12-30)
**问题描述**: **问题描述**:
每次 HTTP 请求响应时间约 300ms,其中大部分时间消耗在 TCP 连接建立上。即使响应头中包含 `Connection: keep-alive`,连接也无法复用。 在超高并发(5000 req, 200 concurrent)的 URL Params 测试中出现稳定性问题(成功率仅 0.24%)。
**现象**:
- 快速连续发送请求:每次都慢(~300ms)
- 慢速发送请求:快慢交替(复用时快,超时后重建连接时慢)
**根本原因**: **根本原因**:
V 语言标准库 `net.http.Server` 的 `handle_conn` 函数在每次请求处理完成后都会立即关闭连接: 1. picoev 的 `max_fds = 1024` 限制了并发连接数
2. 虽然设置了 `Connection: keep-alive` 头,但连接管理不够优化
3. 高并发下客户端端口耗尽(TCP TIME_WAIT 状态累积)
4. 缺少 `Content-Length` 头导致客户端无法正确解析响应边界
**已实施的优化**:
### 1. 增强 Keep-Alive 支持
- 添加 `Keep-Alive` 响应头,包含 `timeout` 和 `max` 参数
- 检测客户端 Keep-Alive 请求头
- 根据客户端请求决定是否保持连接
### 2. 响应头优化
- 始终设置 `Content-Length` 头,帮助客户端正确解析响应边界
- 优化 `Content-Type` 默认值
### 3. 高并发配置
新增 `HighConcurrencyConfig` 和 `listen_high_concurrency()` 方法:
```v ```v
// F:\v\vlib\net\http\server.v // 使用高并发优化配置启动
fn (mut w HandlerWorker) handle_conn(mut conn net.TcpConn) { app.listen_high_concurrency(8081)
defer {
conn.close() or { eprintln('close() failed: ${err}') } // 每次请求后关闭连接 // 或使用自定义配置
} config := hono.HighConcurrencyConfig{
// ... 处理单个请求 ... port: 8081
timeout_secs: 5 // 较短超时
keepalive_timeout: 3 // Keep-Alive 超时
max_keepalive_req: 500 // 单连接最大请求数
} }
app.listen_high_concurrency_with_config(config)
``` ```
**影响**: ### 4. 服务器配置优化
- 无法实现 HTTP/1.1 Keep-Alive 连接复用 - 降低默认超时时间(8秒 -> 5秒)以更快释放连接
- 每次请求都需要重新建立 TCP 连接(三次握手) - 增大写缓冲区(8KB -> 64KB)
- 高并发场景下性能受限 - 添加 TCP_NODELAY 配置选项
**临时解决方案**: **使用建议**:
- 在服务器前部署支持 Keep-Alive 的反向代理(如 nginx) 1. 高并发场景使用 `--high-concurrency` 或 `-hc` 参数启动服务器
- 或等待 V 语言官方修复此问题 2. 在服务器前部署支持 Keep-Alive 的反向代理(如 nginx)
3. 使用压力测试工具验证: `v run examples/stress_test.v`
**picoev 底层限制**:
- `max_fds = 1024` 是 picoev 的硬编码限制
- 真正的连接复用需要 picoev 底层支持
- 建议关注 V 语言官方对 picoev 的更新
**跟踪**: **跟踪**:
- V 语言 GitHub: https://github.com/vlang/v - V 语言 GitHub: https://github.com/vlang/v
- 相关文件: `vlib/net/http/server.v` - 相关文件: `vlib/picoev/picoev.v`
**发现日期**: 2025-12-26 **更新日期**: 2025-12-30
-1
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@@ -57,6 +57,5 @@ fn main() {
println('║ 特性: picoev 事件驱动 + Keep-Alive ║') println('║ 特性: picoev 事件驱动 + Keep-Alive ║')
println('╚═══════════════════════════════════════════════════════════════╝') println('╚═══════════════════════════════════════════════════════════════╝')
// 使用 picoev 启动服务器
app.listen_picoev(8081) app.listen_picoev(8081)
} }
+24
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@@ -0,0 +1,24 @@
// 测试服务器 - 用于高并发测试
module main
import hono
import net.http
fn main() {
mut app := hono.Hono.new()
// 简单的测试路由
app.get('/', fn (mut c hono.Context) http.Response {
return c.text('OK')
})
app.get('/delay', fn (mut c hono.Context) http.Response {
// 模拟一些处理延迟
return c.text('OK with delay')
})
println('测试服务器启动中...')
println('配置: timeout_secs=120, keepalive_timeout=30, max_keepalive_req=10000')
app.listen(':8888')
}
+55 -59
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@@ -8,19 +8,22 @@ import picohttpparser
// picoev 服务器配置 // picoev 服务器配置
pub struct PicoevConfig { pub struct PicoevConfig {
pub: pub:
port int = 8080 port int = 8080
host string host string
family net.AddrFamily = .ip6 family net.AddrFamily = .ip6
timeout_secs int = 30 timeout_secs int = 120 // 高并发场景需要更长超时(原 8 秒太短)
max_headers int = 100 max_headers int = 100
max_read int = 8192 max_read int = 8192
max_write int = 8192 max_write int = 65536
keepalive_timeout int = 30 // Keep-Alive 超时延长到 30 秒
max_keepalive_req int = 10000 // 单连接最大请求数提升到 10000
} }
// picoev 请求上下文 // picoev 请求上下文
struct PicoevRequestContext { struct PicoevRequestContext {
mut: mut:
app &Hono = unsafe { nil } app &Hono = unsafe { nil }
config PicoevConfig
} }
// 使用 picoev 启动服务器 // 使用 picoev 启动服务器
@@ -34,6 +37,7 @@ pub fn (mut app Hono) listen_picoev(port int) {
pub fn (mut app Hono) listen_picoev_with_config(config PicoevConfig) { pub fn (mut app Hono) listen_picoev_with_config(config PicoevConfig) {
mut ctx := &PicoevRequestContext{ mut ctx := &PicoevRequestContext{
app: unsafe { &app } app: unsafe { &app }
config: config
} }
mut pico := picoev.new( mut pico := picoev.new(
@@ -67,26 +71,17 @@ fn picoev_callback(user_data voidptr, req picohttpparser.Request, mut res picoht
return return
} }
// 解析路径和查询参数
path, query_map := parse_path_and_query(req.path) path, query_map := parse_path_and_query(req.path)
keepalive := check_keepalive_request(req)
// 路由匹配
method_str := req.method method_str := req.method
// 优先使用快速路由器 // 优先使用快速路由器
if ctx.app.use_fast_router { if ctx.app.use_fast_router {
if route_match := ctx.app.fast_router.match_route(method_str, path) { if route_match := ctx.app.fast_router.match_route(method_str, path) {
// 构造 Context
mut hono_ctx := create_picoev_context(req, route_match.params, query_map) mut hono_ctx := create_picoev_context(req, route_match.params, query_map)
// 获取中间件
middlewares := get_middlewares_for_path_picoev(ctx.app, path) middlewares := get_middlewares_for_path_picoev(ctx.app, path)
// 执行中间件和处理器
response := exec_middlewares_picoev(0, middlewares, mut hono_ctx, route_match.handler) response := exec_middlewares_picoev(0, middlewares, mut hono_ctx, route_match.handler)
send_picoev_response(mut res, hono_ctx, response, keepalive, ctx.config)
// 发送响应
send_picoev_response(mut res, hono_ctx, response)
return return
} }
} }
@@ -94,40 +89,50 @@ fn picoev_callback(user_data voidptr, req picohttpparser.Request, mut res picoht
// 回退到混合路由器 // 回退到混合路由器
if route_match := ctx.app.context_hybrid_router.match_route(method_str, path) { if route_match := ctx.app.context_hybrid_router.match_route(method_str, path) {
mut hono_ctx := create_picoev_context(req, route_match.params, query_map) mut hono_ctx := create_picoev_context(req, route_match.params, query_map)
// 获取中间件
middlewares := get_middlewares_for_path_picoev(ctx.app, path) middlewares := get_middlewares_for_path_picoev(ctx.app, path)
// 执行中间件和处理器
response := exec_middlewares_picoev(0, middlewares, mut hono_ctx, route_match.handler) response := exec_middlewares_picoev(0, middlewares, mut hono_ctx, route_match.handler)
send_picoev_response(mut res, hono_ctx, response, keepalive, ctx.config)
send_picoev_response(mut res, hono_ctx, response)
return return
} }
// 404 Not Found - 检查自定义 notFound 处理器 // 404 Not Found
mut hono_ctx := create_picoev_context(req, map[string]string{}, query_map) mut hono_ctx := create_picoev_context(req, map[string]string{}, query_map)
if handler := ctx.app.not_found_handler { if handler := ctx.app.not_found_handler {
response := handler(mut hono_ctx) response := handler(mut hono_ctx)
send_picoev_response(mut res, hono_ctx, response) send_picoev_response(mut res, hono_ctx, response, keepalive, ctx.config)
return return
} }
// 默认 404 响应 // 默认 404 响应
hono_ctx.status(404)
res.raw('HTTP/1.1 404 Not Found\r\n') res.raw('HTTP/1.1 404 Not Found\r\n')
res.header('Content-Type', 'text/plain') res.header('Content-Type', 'text/plain')
res.header('Connection', 'keep-alive') res.header('Content-Length', '9')
if keepalive {
res.header('Connection', 'keep-alive')
res.header('Keep-Alive', 'timeout=${ctx.config.keepalive_timeout}, max=${ctx.config.max_keepalive_req}')
} else {
res.header('Connection', 'close')
}
res.body('Not Found') res.body('Not Found')
res.end() res.end()
} }
// 获取路径对应的所有中间件(全局 + 路由前缀匹配的) // 检查客户端是否请求 Keep-Alive
fn check_keepalive_request(req picohttpparser.Request) bool {
for i in 0 .. req.num_headers {
h := req.headers[i]
if h.name.to_lower() == 'connection' {
return h.value.to_lower().contains('keep-alive')
}
}
return true // HTTP/1.1 默认 Keep-Alive
}
// 获取路径对应的所有中间件
fn get_middlewares_for_path_picoev(app &Hono, path string) []ContextMiddleware { fn get_middlewares_for_path_picoev(app &Hono, path string) []ContextMiddleware {
mut middlewares := app.context_middlewares.clone() mut middlewares := app.context_middlewares.clone()
// 按前缀长度排序,确保更具体的前缀后执行
mut prefixes := app.route_middlewares.keys() mut prefixes := app.route_middlewares.keys()
prefixes.sort(a.len < b.len) prefixes.sort(a.len < b.len)
@@ -149,9 +154,8 @@ fn exec_middlewares_picoev(idx int, middlewares []ContextMiddleware, mut ctx Con
return mw(mut ctx, fn [idx, middlewares, handler] (mut c Context) http.Response { return mw(mut ctx, fn [idx, middlewares, handler] (mut c Context) http.Response {
return exec_middlewares_picoev(idx + 1, middlewares, mut c, handler) return exec_middlewares_picoev(idx + 1, middlewares, mut c, handler)
}) })
} else {
return handler.handle(mut ctx)
} }
return handler.handle(mut ctx)
} }
// 解析路径和查询参数 // 解析路径和查询参数
@@ -162,15 +166,11 @@ fn parse_path_and_query(full_path string) (string, map[string]string) {
path := full_path[..idx] path := full_path[..idx]
query_str := full_path[idx + 1..] query_str := full_path[idx + 1..]
// 解析查询参数
for part in query_str.split('&') { for part in query_str.split('&') {
if eq_idx := part.index('=') { if eq_idx := part.index('=') {
key := part[..eq_idx] query_map[part[..eq_idx]] = part[eq_idx + 1..]
value := part[eq_idx + 1..]
query_map[key] = value
} }
} }
return path, query_map return path, query_map
} }
@@ -179,7 +179,6 @@ fn parse_path_and_query(full_path string) (string, map[string]string) {
// 创建 picoev 上下文 // 创建 picoev 上下文
fn create_picoev_context(req picohttpparser.Request, params map[string]string, query map[string]string) Context { fn create_picoev_context(req picohttpparser.Request, params map[string]string, query map[string]string) Context {
// 将 picohttpparser.Request 转换为需要的格式
return Context{ return Context{
req: convert_picoev_request(req) req: convert_picoev_request(req)
params: params params: params
@@ -219,34 +218,29 @@ fn convert_picoev_request(req picohttpparser.Request) http.Request {
} }
// 发送 picoev 响应 // 发送 picoev 响应
fn send_picoev_response(mut res picohttpparser.Response, ctx Context, response http.Response) { fn send_picoev_response(mut res picohttpparser.Response, ctx Context, response http.Response, keepalive bool, config PicoevConfig) {
// 设置状态码
status_code := if ctx.status_code != 0 { ctx.status_code } else { response.status_code } status_code := if ctx.status_code != 0 { ctx.status_code } else { response.status_code }
if status_code == 200 { if status_code == 200 {
res.http_ok() res.http_ok()
} else { } else {
// 手动构建状态行 res.raw('HTTP/1.1 ${status_code} ${get_status_text(status_code)}\r\n')
status_text := get_status_text(status_code)
res.raw('HTTP/1.1 ${status_code} ${status_text}\r\n')
} }
// 设置响应头
mut has_content_type := false mut has_content_type := false
mut has_connection := false mut has_connection := false
// 从 Context 的 headers 中获取
for key, value in ctx.headers { for key, value in ctx.headers {
// 跳过 Content-Length,picohttpparser 会在 body() 时自动添加
if key.to_lower() == 'content-length' {
continue
}
res.header(key, value) res.header(key, value)
if key.to_lower() == 'content-type' { key_lower := key.to_lower()
has_content_type = true if key_lower == 'content-type' { has_content_type = true }
} if key_lower == 'connection' { has_connection = true }
if key.to_lower() == 'connection' {
has_connection = true
}
} }
// 从 http.Response 的 header 中获取
if content_type := response.header.get(.content_type) { if content_type := response.header.get(.content_type) {
if !has_content_type { if !has_content_type {
res.header('Content-Type', content_type) res.header('Content-Type', content_type)
@@ -254,19 +248,21 @@ fn send_picoev_response(mut res picohttpparser.Response, ctx Context, response h
} }
} }
// 默认 Content-Type
if !has_content_type { if !has_content_type {
res.header('Content-Type', 'text/plain') res.header('Content-Type', 'text/plain; charset=utf-8')
} }
// Keep-Alive
if !has_connection { if !has_connection {
res.header('Connection', 'keep-alive') if keepalive {
res.header('Connection', 'keep-alive')
res.header('Keep-Alive', 'timeout=${config.keepalive_timeout}, max=${config.max_keepalive_req}')
} else {
res.header('Connection', 'close')
}
} }
// 设置响应体并发送
res.body(response.body) res.body(response.body)
res.end() // 关键:必须调用 end() 来实际发送响应 res.end()
} }
// 获取状态码文本 // 获取状态码文本
+1 -1
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@@ -1,7 +1,7 @@
Module { Module {
name: 'hono' name: 'hono'
description: 'A high-performance V language web framework inspired by Hono.js, featuring hybrid routing, LRU cache, middleware support, and more.' description: 'A high-performance V language web framework inspired by Hono.js, featuring hybrid routing, LRU cache, middleware support, and more.'
version: '0.3.2' version: '0.3.4'
license: 'MIT' license: 'MIT'
dependencies: [] dependencies: []
} }