diff --git a/pluginmanager/config_update_test.go b/pluginmanager/config_update_test.go
index e046164a6d..66a3d6aef7 100644
--- a/pluginmanager/config_update_test.go
+++ b/pluginmanager/config_update_test.go
@@ -80,8 +80,7 @@ func (s *configUpdateTestSuite) TestConfigUpdate() {
 	// unblock old config
 	checkFlusher.Block = false
 	time.Sleep(time.Second * time.Duration(5))
-	s.Equal(10000, checkFlusher.GetLogCount())
-	// this magic number(10000) must exceed number of logs can be hold in processor channel(LogsChan) + aggregator buffer(defaultLogGroup) + flusher channel(LogGroupsChan)
+	s.Equal(0, checkFlusher.GetLogCount())
 	LogtailConfigLock.RLock()
 	s.Equal(20000, GetConfigFlushers(LogtailConfig[noblockUpdateConfigName].PluginRunner)[0].(*checker.FlusherChecker).GetLogCount())
 	LogtailConfigLock.RUnlock()
@@ -104,7 +103,7 @@ func (s *configUpdateTestSuite) TestConfigUpdateMany() {
 	s.Equal(0, checkFlusher.GetLogCount(), "the hold on block flusher checker doesn't have any logs")
 	checkFlusher.Block = false
 	time.Sleep(time.Second * time.Duration(5))
-	s.Equal(checkFlusher.GetLogCount(), 10000)
+	s.Equal(checkFlusher.GetLogCount(), 0)
 
 	// load normal config
 	for i := 0; i < 3; i++ {
@@ -183,5 +182,5 @@ func (s *configUpdateTestSuite) TestStopAllExitTimeout() {
 	s.Equal(0, checkFlusher.GetLogCount())
 	checkFlusher.Block = false
 	time.Sleep(time.Second * time.Duration(5))
-	s.Equal(10000, checkFlusher.GetLogCount())
+	s.Equal(0, checkFlusher.GetLogCount())
 }
diff --git a/pluginmanager/plugin_runner_v1.go b/pluginmanager/plugin_runner_v1.go
index b4364b1ded..ed8578873c 100644
--- a/pluginmanager/plugin_runner_v1.go
+++ b/pluginmanager/plugin_runner_v1.go
@@ -383,6 +383,8 @@ func (p *pluginv1Runner) Stop(exit bool) error {
 	for _, flusher := range p.FlusherPlugins {
 		flusher.Flusher.SetUrgent(exit)
 	}
+	p.LogstoreConfig.FlushOutFlag.Store(true)
+
 	for _, service := range p.ServicePlugins {
 		_ = service.Stop()
 	}
@@ -395,7 +397,6 @@ func (p *pluginv1Runner) Stop(exit bool) error {
 	p.AggregateControl.WaitCancel()
 	logger.Info(p.LogstoreConfig.Context.GetRuntimeContext(), "aggregator plugins stop", "done")
 
-	p.LogstoreConfig.FlushOutFlag.Store(true)
 	p.FlushControl.WaitCancel()
 
 	if exit && p.FlushOutStore.Len() > 0 {
diff --git a/pluginmanager/plugin_runner_v2.go b/pluginmanager/plugin_runner_v2.go
index 46217d7afa..2db673c426 100644
--- a/pluginmanager/plugin_runner_v2.go
+++ b/pluginmanager/plugin_runner_v2.go
@@ -397,6 +397,8 @@ func (p *pluginv2Runner) Stop(exit bool) error {
 	for _, flusher := range p.FlusherPlugins {
 		flusher.Flusher.SetUrgent(exit)
 	}
+	p.LogstoreConfig.FlushOutFlag.Store(true)
+
 	for _, serviceInput := range p.ServicePlugins {
 		_ = serviceInput.Input.Stop()
 	}
@@ -409,7 +411,6 @@ func (p *pluginv2Runner) Stop(exit bool) error {
 	p.AggregateControl.WaitCancel()
 	logger.Info(p.LogstoreConfig.Context.GetRuntimeContext(), "aggregator plugins stop", "done")
 
-	p.LogstoreConfig.FlushOutFlag.Store(true)
 	p.FlushControl.WaitCancel()
 
 	if exit && p.FlushOutStore.Len() > 0 {