diff --git a/internal/app/app.go b/internal/app/app.go
index 0adb4ae..e0a8af8 100644
--- a/internal/app/app.go
+++ b/internal/app/app.go
@@ -5,6 +5,7 @@ import (
 	"context"
 	"fmt"
 	"net/http"
+	"sync"
 	"time"
 
 	"gpt-load/internal/config"
@@ -168,19 +169,47 @@ func (a *App) Start() error {
 func (a *App) Stop(ctx context.Context) {
 	logrus.Info("Shutting down server...")
 
-	// Shutdown http server
 	if err := a.httpServer.Shutdown(ctx); err != nil {
 		logrus.Errorf("Server forced to shutdown: %v", err)
 	}
 
-	// Stop background services
-	a.cronChecker.Stop()
-	a.leaderLock.Stop()
-	a.logCleanupService.Stop()
-	a.requestLogService.Stop()
-	a.groupManager.Stop()
-	a.settingsManager.Stop()
-	a.storage.Close()
+	stoppableServices := []func(context.Context){
+		a.cronChecker.Stop,
+		a.leaderLock.Stop,
+		a.logCleanupService.Stop,
+		a.requestLogService.Stop,
+		a.groupManager.Stop,
+		a.settingsManager.Stop,
+	}
+
+	var wg sync.WaitGroup
+	wg.Add(len(stoppableServices))
+
+	for _, stopFunc := range stoppableServices {
+		go func(stop func(context.Context)) {
+			defer wg.Done()
+			stop(ctx)
+		}(stopFunc)
+	}
+
+	// Wait for all services to stop, or for the context to be done.
+	done := make(chan struct{})
+	go func() {
+		wg.Wait()
+		close(done)
+	}()
+
+	select {
+	case <-done:
+		logrus.Info("All background services stopped.")
+	case <-ctx.Done():
+		logrus.Warn("Shutdown timed out, some services may not have stopped gracefully.")
+	}
+
+	// Step 3: Close storage connection last.
+	if a.storage != nil {
+		a.storage.Close()
+	}
 
 	logrus.Info("Server exited gracefully")
 }
diff --git a/internal/config/system_settings.go b/internal/config/system_settings.go
index 34307a4..1762c34 100644
--- a/internal/config/system_settings.go
+++ b/internal/config/system_settings.go
@@ -1,6 +1,7 @@
 package config
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 	"gpt-load/internal/db"
@@ -106,7 +107,7 @@ func (sm *SystemSettingsManager) Initialize(store store.Store, gm groupManager,
 }
 
 // Stop gracefully stops the SystemSettingsManager's background syncer.
-func (sm *SystemSettingsManager) Stop() {
+func (sm *SystemSettingsManager) Stop(ctx context.Context) {
 	if sm.syncer != nil {
 		sm.syncer.Stop()
 	}
diff --git a/internal/keypool/cron_checker.go b/internal/keypool/cron_checker.go
index 735601f..64c1fd5 100644
--- a/internal/keypool/cron_checker.go
+++ b/internal/keypool/cron_checker.go
@@ -1,6 +1,7 @@
 package keypool
 
 import (
+	"context"
 	"gpt-load/internal/config"
 	"gpt-load/internal/models"
 	"gpt-load/internal/store"
@@ -44,12 +45,23 @@ func (s *CronChecker) Start() {
 	go s.runLoop()
 }
 
-// Stop stops the cron job.
-func (s *CronChecker) Stop() {
-	logrus.Info("Stopping CronChecker...")
+// Stop stops the cron job, respecting the context for shutdown timeout.
+func (s *CronChecker) Stop(ctx context.Context) {
 	close(s.stopChan)
-	s.wg.Wait()
-	logrus.Info("CronChecker stopped.")
+
+	// Wait for the goroutine to finish, or for the shutdown to time out.
+	done := make(chan struct{})
+	go func() {
+		s.wg.Wait()
+		close(done)
+	}()
+
+	select {
+	case <-done:
+		logrus.Info("CronChecker stopped gracefully.")
+	case <-ctx.Done():
+		logrus.Warn("CronChecker stop timed out.")
+	}
 }
 
 func (s *CronChecker) runLoop() {
@@ -104,8 +116,12 @@ func (s *CronChecker) submitValidationJobs() {
 			validatedCount := len(invalidKeys)
 			becameValidCount := 0
 			if validatedCount > 0 {
-				logrus.Debugf("CronChecker: Found %d invalid keys to validate for group %s.", validatedCount, group.Name)
 				for j := range invalidKeys {
+					select {
+					case <-s.stopChan:
+						return
+					default:
+					}
 					key := &invalidKeys[j]
 					isValid, _ := s.Validator.ValidateSingleKey(key, group)
 
diff --git a/internal/services/group_manager.go b/internal/services/group_manager.go
index bdf5f0b..840ac8a 100644
--- a/internal/services/group_manager.go
+++ b/internal/services/group_manager.go
@@ -1,6 +1,7 @@
 package services
 
 import (
+	"context"
 	"fmt"
 	"gpt-load/internal/config"
 	"gpt-load/internal/models"
@@ -93,7 +94,7 @@ func (gm *GroupManager) Invalidate() error {
 }
 
 // Stop gracefully stops the GroupManager's background syncer.
-func (gm *GroupManager) Stop() {
+func (gm *GroupManager) Stop(ctx context.Context) {
 	if gm.syncer != nil {
 		gm.syncer.Stop()
 	}
diff --git a/internal/services/log_cleanup_service.go b/internal/services/log_cleanup_service.go
index 6c0bb6c..1504b26 100644
--- a/internal/services/log_cleanup_service.go
+++ b/internal/services/log_cleanup_service.go
@@ -1,9 +1,11 @@
 package services
 
 import (
+	"context"
 	"gpt-load/internal/config"
 	"gpt-load/internal/models"
 	"gpt-load/internal/store"
+	"sync"
 	"time"
 
 	"github.com/sirupsen/logrus"
@@ -16,6 +18,7 @@ type LogCleanupService struct {
 	settingsManager *config.SystemSettingsManager
 	leaderLock      *store.LeaderLock
 	stopCh          chan struct{}
+	wg              sync.WaitGroup
 }
 
 // NewLogCleanupService 创建新的日志清理服务
@@ -30,18 +33,32 @@ func NewLogCleanupService(db *gorm.DB, settingsManager *config.SystemSettingsMan
 
 // Start 启动日志清理服务
 func (s *LogCleanupService) Start() {
+	s.wg.Add(1)
 	go s.run()
 	logrus.Debug("Log cleanup service started")
 }
 
 // Stop 停止日志清理服务
-func (s *LogCleanupService) Stop() {
+func (s *LogCleanupService) Stop(ctx context.Context) {
 	close(s.stopCh)
-	logrus.Info("Log cleanup service stopped")
+
+	done := make(chan struct{})
+	go func() {
+		s.wg.Wait()
+		close(done)
+	}()
+
+	select {
+	case <-done:
+		logrus.Info("LogCleanupService stopped gracefully.")
+	case <-ctx.Done():
+		logrus.Warn("LogCleanupService stop timed out.")
+	}
 }
 
 // run 运行日志清理的主循环
 func (s *LogCleanupService) run() {
+	defer s.wg.Done()
 	ticker := time.NewTicker(2 * time.Hour)
 	defer ticker.Stop()
 
diff --git a/internal/services/request_log_service.go b/internal/services/request_log_service.go
index a026372..f49d041 100644
--- a/internal/services/request_log_service.go
+++ b/internal/services/request_log_service.go
@@ -8,6 +8,7 @@ import (
 	"gpt-load/internal/models"
 	"gpt-load/internal/store"
 	"strings"
+	"sync"
 	"time"
 
 	"github.com/google/uuid"
@@ -28,61 +29,77 @@ type RequestLogService struct {
 	store           store.Store
 	settingsManager *config.SystemSettingsManager
 	leaderLock      *store.LeaderLock
-	ctx             context.Context
-	cancel          context.CancelFunc
+	stopChan        chan struct{}
+	wg              sync.WaitGroup
 	ticker          *time.Ticker
 }
 
 // NewRequestLogService creates a new RequestLogService instance
 func NewRequestLogService(db *gorm.DB, store store.Store, sm *config.SystemSettingsManager, ls *store.LeaderLock) *RequestLogService {
-	ctx, cancel := context.WithCancel(context.Background())
 	return &RequestLogService{
 		db:              db,
 		store:           store,
 		settingsManager: sm,
 		leaderLock:      ls,
-		ctx:             ctx,
-		cancel:          cancel,
+		stopChan:        make(chan struct{}),
 	}
 }
 
 // Start initializes the service and starts the periodic flush routine
 func (s *RequestLogService) Start() {
-	go s.flush()
+	s.wg.Add(1)
+	go s.runLoop()
+}
+
+func (s *RequestLogService) runLoop() {
+	defer s.wg.Done()
+
+	// Initial flush on start
+	s.flush()
 
 	interval := time.Duration(s.settingsManager.GetSettings().RequestLogWriteIntervalMinutes) * time.Minute
 	if interval <= 0 {
 		interval = time.Minute
 	}
 	s.ticker = time.NewTicker(interval)
+	defer s.ticker.Stop()
 
-	go func() {
-		for {
-			select {
-			case <-s.ticker.C:
-				newInterval := time.Duration(s.settingsManager.GetSettings().RequestLogWriteIntervalMinutes) * time.Minute
-				if newInterval <= 0 {
-					newInterval = time.Minute
-				}
-				if newInterval != interval {
-					s.ticker.Reset(newInterval)
-					interval = newInterval
-					logrus.Debugf("Request log write interval updated to: %v", interval)
-				}
-				s.flush()
-			case <-s.ctx.Done():
-				s.ticker.Stop()
-				logrus.Info("RequestLogService stopped.")
-				return
+	for {
+		select {
+		case <-s.ticker.C:
+			newInterval := time.Duration(s.settingsManager.GetSettings().RequestLogWriteIntervalMinutes) * time.Minute
+			if newInterval <= 0 {
+				newInterval = time.Minute
 			}
+			if newInterval != interval {
+				s.ticker.Reset(newInterval)
+				interval = newInterval
+				logrus.Debugf("Request log write interval updated to: %v", interval)
+			}
+			s.flush()
+		case <-s.stopChan:
+			return
 		}
-	}()
+	}
 }
 
 // Stop gracefully stops the RequestLogService
-func (s *RequestLogService) Stop() {
-	s.flush()
-	s.cancel()
+func (s *RequestLogService) Stop(ctx context.Context) {
+	close(s.stopChan)
+
+	done := make(chan struct{})
+	go func() {
+		s.wg.Wait()
+		close(done)
+	}()
+
+	select {
+	case <-done:
+		s.flush()
+		logrus.Info("RequestLogService stopped gracefully.")
+	case <-ctx.Done():
+		logrus.Warn("RequestLogService stop timed out.")
+	}
 }
 
 // Record logs a request to the database and cache
diff --git a/internal/store/leader_lock.go b/internal/store/leader_lock.go
index f98d120..427a7d8 100644
--- a/internal/store/leader_lock.go
+++ b/internal/store/leader_lock.go
@@ -79,18 +79,28 @@ func (s *LeaderLock) Start() error {
 }
 
 // Stop gracefully stops the leadership maintenance process.
-func (s *LeaderLock) Stop() {
+func (s *LeaderLock) Stop(ctx context.Context) {
 	if s.isSingleNode {
 		return
 	}
-	logrus.Info("Stopping leadership maintenance process...")
 	close(s.stopChan)
-	s.wg.Wait()
+
+	done := make(chan struct{})
+	go func() {
+		s.wg.Wait()
+		close(done)
+	}()
+
+	select {
+	case <-done:
+		logrus.Info("Leadership maintenance process stopped gracefully.")
+	case <-ctx.Done():
+		logrus.Warn("Leadership maintenance process stop timed out.")
+	}
 
 	if s.isLeader.Load() {
 		s.releaseLock()
 	}
-	logrus.Info("Leadership maintenance process stopped.")
 }
 
 // IsLeader returns true if the current node is the leader.
@@ -176,7 +186,6 @@ func (s *LeaderLock) maintainLeadershipLoop() {
 				logrus.WithError(err).Warn("Error during leadership maintenance cycle.")
 			}
 		case <-s.stopChan:
-			logrus.Info("Leadership maintenance loop stopping.")
 			return
 		}
 	}
diff --git a/internal/syncer/cache_syncer.go b/internal/syncer/cache_syncer.go
index 28cee7b..67aca80 100644
--- a/internal/syncer/cache_syncer.go
+++ b/internal/syncer/cache_syncer.go
@@ -68,7 +68,6 @@ func (s *CacheSyncer[T]) Invalidate() error {
 
 // Stop gracefully shuts down the syncer's background goroutine.
 func (s *CacheSyncer[T]) Stop() {
-	s.logger.Debug("stopping cache syncer...")
 	close(s.stopChan)
 	s.wg.Wait()
 	s.logger.Info("cache syncer stopped.")
@@ -139,7 +138,6 @@ func (s *CacheSyncer[T]) listenForUpdates() {
 					s.logger.Errorf("failed to reload cache after notification: %v", err)
 				}
 			case <-s.stopChan:
-				s.logger.Info("received stop signal, exiting subscriber loop.")
 				if err := subscription.Close(); err != nil {
 					s.logger.Errorf("failed to close subscription: %v", err)
 				}