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//go:build ignore
package main
import (
"database/sql"
"fmt"
"os"
"strings"
"sync"
"time"
_ "modernc.org/sqlite"
)
func main() {
// 使用临时测试数据库
dbPath := "./test_concurrent.db"
// 删除旧的测试数据库
os.Remove(dbPath)
fmt.Printf("测试数据库: %s\n\n", dbPath)
// 直接使用database/sql，设置busy_timeout
db, err := sql.Open("sqlite", dbPath)
if err != nil {
fmt.Printf("打开数据库失败: %v\n", err)
return
}
defer db.Close()
defer os.Remove(dbPath) // 清理测试数据库
// 设置busy_timeout（10秒）
_, err = db.Exec("PRAGMA busy_timeout = 10000")
if err != nil {
fmt.Printf("设置busy_timeout失败: %v\n", err)
return
}
// 设置WAL模式
_, err = db.Exec("PRAGMA journal_mode = WAL")
if err != nil {
fmt.Printf("设置WAL模式失败: %v\n", err)
return
}
// 创建测试表
_, err = db.Exec(`
CREATE TABLE IF NOT EXISTS request_log (
id INTEGER PRIMARY KEY AUTOINCREMENT,
platform TEXT,
model TEXT,
provider TEXT,
http_code INTEGER,
input_tokens INTEGER,
output_tokens INTEGER,
cache_create_tokens INTEGER,
cache_read_tokens INTEGER,
reasoning_tokens INTEGER,
is_stream INTEGER,
duration_sec REAL,
created_at DATETIME DEFAULT CURRENT_TIMESTAMP
)
`)
if err != nil {
fmt.Printf("创建表失败: %v\n", err)
return
}
fmt.Println("✅ 数据库初始化成功（WAL模式 + 10秒超时）\n")
// 测试1: 不带重试的并发写入
fmt.Println("========== 测试1: 并发写入（无重试）==========")
testWithoutRetry(db, 10)
time.Sleep(100 * time.Millisecond)
// 测试2: 带重试的并发写入
fmt.Println("\n========== 测试2: 并发写入（带重试）==========")
testWithRetry(db, 10)
}
func testWithoutRetry(db *sql.DB, concurrency int) {
var wg sync.WaitGroup
errors := 0
success := 0
mu := sync.Mutex{}
start := time.Now()
for i := 0; i < concurrency; i++ {
wg.Add(1)
go func(id int) {
defer wg.Done()
_, err := db.Exec(`
INSERT INTO request_log (
platform, model, provider, http_code,
input_tokens, output_tokens, cache_create_tokens, cache_read_tokens,
reasoning_tokens, is_stream, duration_sec
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
`,
"test1",
"test-model",
fmt.Sprintf("provider-%d", id),
200, 100, 200, 0, 0, 0, 0, 1.5,
)
mu.Lock()
if err != nil {
errors++
if strings.Contains(err.Error(), "SQLITE_BUSY") {
fmt.Printf(" ⚠️ [%d] SQLITE_BUSY（busy_timeout可能未生效）\n", id)
} else {
fmt.Printf(" ❌ [%d] 失败: %v\n", id, err)
}
} else {
success++
fmt.Printf(" ✅ [%d] 成功\n", id)
}
mu.Unlock()
}(i)
}
wg.Wait()
duration := time.Since(start)
fmt.Printf("\n结果统计:\n")
fmt.Printf(" 总请求: %d\n", concurrency)
fmt.Printf(" 成功: %d\n", success)
fmt.Printf(" 失败: %d\n", errors)
fmt.Printf(" 耗时: %v\n", duration)
}
func testWithRetry(db *sql.DB, concurrency int) {
var wg sync.WaitGroup
errors := 0
success := 0
retries := 0
mu := sync.Mutex{}
start := time.Now()
for i := 0; i < concurrency; i++ {
wg.Add(1)
go func(id int) {
defer wg.Done()
var lastErr error
for attempt := 0; attempt < 3; attempt++ {
_, err := db.Exec(`
INSERT INTO request_log (
platform, model, provider, http_code,
input_tokens, output_tokens, cache_create_tokens, cache_read_tokens,
reasoning_tokens, is_stream, duration_sec
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
`,
"test2",
"test-model",
fmt.Sprintf("provider-%d", id),
200, 100, 200, 0, 0, 0, 0, 1.5,
)
if err == nil {
mu.Lock()
success++
if attempt > 0 {
retries++
fmt.Printf(" ✅ [%d] 成功（第%d次重试）\n", id, attempt+1)
} else {
fmt.Printf(" ✅ [%d] 成功\n", id)
}
mu.Unlock()
return
}
lastErr = err
if strings.Contains(err.Error(), "SQLITE_BUSY") || strings.Contains(err.Error(), "database is locked") {
time.Sleep(time.Duration(50*(attempt+1)) * time.Millisecond)
continue
}
break
}
mu.Lock()
errors++
fmt.Printf(" ❌ [%d] 失败（3次重试后）: %v\n", id, lastErr)
mu.Unlock()
}(i)
}
wg.Wait()
duration := time.Since(start)
fmt.Printf("\n结果统计:\n")
fmt.Printf(" 总请求: %d\n", concurrency)
fmt.Printf(" 成功: %d\n", success)
fmt.Printf(" 失败: %d\n", errors)
fmt.Printf(" 重试成功: %d\n", retries)
fmt.Printf(" 耗时: %v\n", duration)
if errors == 0 {
fmt.Printf("\n ✅ 所有请求成功！带重试的方案有效。\n")
}
}