perf: optimize database connection pool configuration and job scheduling interval

- adjust database connection pool parameters: reduce the maximum number of connections and increase connection lifecycle
- add configuration for maximum connection idle time
- optimize SQLite connection parameters, add busy_timeout and synchronous mode
- add null checks for the update logic of file scanning jobs

Author: WayneWang00

cmd/main.go

@@ -168,8 +168,8 @@ func main() {
 
 	// Initialize job layer
 	fileScanJob := job.NewFileScanJob(fileScanService, storageManager, syncRepo, appLogger, 5*time.Minute)
-	eventProcessorJob := job.NewEventProcessorJob(appLogger, syncRepo, embeddingProcessService, codegraphProcessor, 15*time.Second, storageManager)
-	statusCheckerJob := job.NewStatusCheckerJob(embeddingStatusService, storageManager, syncRepo, appLogger, 10*time.Second)
+	eventProcessorJob := job.NewEventProcessorJob(appLogger, syncRepo, embeddingProcessService, codegraphProcessor, 30*time.Second, storageManager)
+	statusCheckerJob := job.NewStatusCheckerJob(embeddingStatusService, storageManager, syncRepo, appLogger, 15*time.Second)
 	eventCleanerJob := job.NewEventCleanerJob(eventRepo, appLogger)
 	indexCleanJob := job.NewIndexCleanJob(appLogger, indexer, workspaceRepo, storageManager, codebaseEmbeddingRepo, syncRepo, eventRepo)
 	// Initialize handler layer

internal/config/database.go

@@ -12,6 +12,7 @@ type DatabaseConfig struct {
 	MaxOpenConns      int           `json:"maxOpenConns"`      // 最大打开连接数
 	MaxIdleConns      int           `json:"maxIdleConns"`      // 最大空闲连接数
 	ConnMaxLifetime   time.Duration `json:"connMaxLifetime"`   // 连接最大生命周期
+	ConnMaxIdleTime   time.Duration `json:"connMaxIdleTime"`   // 连接最大空闲时间
 	EnableWAL         bool          `json:"enableWAL"`         // 启用WAL模式
 	EnableForeignKeys bool          `json:"enableForeignKeys"` // 启用外键约束
 	// 分批删除配置
@@ -24,9 +25,10 @@ func DefaultDatabaseConfig() *DatabaseConfig {
 	return &DatabaseConfig{
 		DataDir:           utils.DbDir,
 		DatabaseName:      "codebase_indexer.db",
-		MaxOpenConns:      25,
-		MaxIdleConns:      10,
-		ConnMaxLifetime:   5 * time.Minute,
+		MaxOpenConns:      5,
+		MaxIdleConns:      3,
+		ConnMaxLifetime:   15 * time.Minute,
+		ConnMaxIdleTime:   3 * time.Minute, // 连接空闲超过3分钟则关闭
 		EnableWAL:         true,
 		EnableForeignKeys: true,
 		BatchDeleteSize:   1000,                 // 默认每批删除1000条记录

internal/database/manager.go

@@ -59,7 +59,7 @@ func (m *SQLiteManager) Initialize() error {
 
 	// 打开数据库连接
 	// db, err := sql.Open("sqlite3", dbPath+"?_foreign_keys=on&_journal_mode=WAL")
-	db, err := sql.Open("sqlite", dbPath+"?_foreign_keys=on&_journal_mode=WAL")
+	db, err := sql.Open("sqlite", dbPath+"?_foreign_keys=on&_journal_mode=WAL&_busy_timeout=5000&_synchronous=NORMAL")
 	if err != nil {
 		return err
 	}
@@ -68,6 +68,7 @@ func (m *SQLiteManager) Initialize() error {
 	db.SetMaxOpenConns(m.config.MaxOpenConns)
 	db.SetMaxIdleConns(m.config.MaxIdleConns)
 	db.SetConnMaxLifetime(m.config.ConnMaxLifetime)
+	db.SetConnMaxIdleTime(m.config.ConnMaxIdleTime)
 
 	// 测试连接
 	if err := db.Ping(); err != nil {

internal/service/file_scanner.go

@@ -221,6 +221,9 @@ func (ws *fileScanService) UpdateWorkspaceStats(workspace *model.Workspace) erro
 		return fmt.Errorf("failed to get codebase config: %w", err)
 	}
 	fileNum := len(codebaseConfig.HashTree)
+	if fileNum == workspace.FileNum {
+		return nil
+	}
 
 	// 更新工作区文件数量
 	updateWorkspace := model.Workspace{