diff --git a/socketserver/server/handlecore.go b/socketserver/server/handlecore.go
index 31bbe9d3..a8272b71 100644
--- a/socketserver/server/handlecore.go
+++ b/socketserver/server/handlecore.go
@@ -353,13 +353,16 @@ func getDeadline() time.Time {
 }
 
 func CloseConnection(conn *websocket.Conn, closeMsg websocket.CloseError) {
-	Statistics.DisconnectCodes[strconv.Itoa(closeMsg.Code)]++
 	closeTxt := closeMsg.Text
 	if strings.Contains(closeTxt, "read: connection reset by peer") {
 		closeTxt = "read: connection reset by peer"
+	} else if strings.Contains(closeTxt, "use of closed network connection") {
+		closeTxt = "read: use of closed network connection"
 	} else if closeMsg.Code == 1001 {
 		closeTxt = "clean shutdown"
 	}
+	// todo kibana cannot analyze these
+	Statistics.DisconnectCodes[strconv.Itoa(closeMsg.Code)]++
 	Statistics.DisconnectReasons[closeTxt]++
 
 	conn.WriteControl(websocket.CloseMessage, websocket.FormatCloseMessage(closeMsg.Code, closeMsg.Text), getDeadline())
diff --git a/socketserver/server/stats.go b/socketserver/server/stats.go
index 0b9a8a30..34d0db25 100644
--- a/socketserver/server/stats.go
+++ b/socketserver/server/stats.go
@@ -119,9 +119,9 @@ func updatePeriodicStats() {
 		Statistics.PubSubChannelCount = len(ChatSubscriptionInfo)
 		ChatSubscriptionLock.RUnlock()
 
-		GlobalSubscriptionInfo.RLock()
-		Statistics.CurrentClientCount = uint64(len(GlobalSubscriptionInfo.Members))
-		GlobalSubscriptionInfo.RUnlock()
+		GlobalSubscriptionLock.RLock()
+		Statistics.CurrentClientCount = uint64(len(GlobalSubscriptionInfo))
+		GlobalSubscriptionLock.RUnlock()
 	}
 
 	{
diff --git a/socketserver/server/subscriptions.go b/socketserver/server/subscriptions.go
index 35b6020b..c9e85a1c 100644
--- a/socketserver/server/subscriptions.go
+++ b/socketserver/server/subscriptions.go
@@ -16,7 +16,8 @@ type SubscriberList struct {
 
 var ChatSubscriptionInfo map[string]*SubscriberList = make(map[string]*SubscriberList)
 var ChatSubscriptionLock sync.RWMutex
-var GlobalSubscriptionInfo SubscriberList
+var GlobalSubscriptionInfo []*ClientInfo
+var GlobalSubscriptionLock sync.RWMutex
 
 func SubscribeChannel(client *ClientInfo, channelName string) {
 	ChatSubscriptionLock.RLock()
@@ -29,9 +30,9 @@ func SubscribeDefaults(client *ClientInfo) {
 }
 
 func SubscribeGlobal(client *ClientInfo) {
-	GlobalSubscriptionInfo.Lock()
-	AddToSliceC(&GlobalSubscriptionInfo.Members, client.MessageChannel)
-	GlobalSubscriptionInfo.Unlock()
+	GlobalSubscriptionLock.Lock()
+	AddToSliceCl(&GlobalSubscriptionInfo, client)
+	GlobalSubscriptionLock.Unlock()
 }
 
 func PublishToChannel(channel string, msg ClientMessage) (count int) {
@@ -75,12 +76,15 @@ func PublishToMultiple(channels []string, msg ClientMessage) (count int) {
 }
 
 func PublishToAll(msg ClientMessage) (count int) {
-	GlobalSubscriptionInfo.RLock()
-	for _, msgChan := range GlobalSubscriptionInfo.Members {
-		msgChan <- msg
+	GlobalSubscriptionLock.RLock()
+	for _, client := range GlobalSubscriptionInfo {
+		select {
+		case client.MessageChannel <- msg:
+		case <-client.MsgChannelIsDone:
+		}
 		count++
 	}
-	GlobalSubscriptionInfo.RUnlock()
+	GlobalSubscriptionLock.RUnlock()
 	return
 }
 
@@ -106,9 +110,9 @@ func UnsubscribeAll(client *ClientInfo) {
 	client.PendingSubscriptionsBacklog = nil
 	client.Mutex.Unlock()
 
-	GlobalSubscriptionInfo.Lock()
-	RemoveFromSliceC(&GlobalSubscriptionInfo.Members, client.MessageChannel)
-	GlobalSubscriptionInfo.Unlock()
+	GlobalSubscriptionLock.Lock()
+	RemoveFromSliceCl(&GlobalSubscriptionInfo, client)
+	GlobalSubscriptionLock.Unlock()
 
 	ChatSubscriptionLock.RLock()
 	client.Mutex.Lock()
@@ -126,9 +130,9 @@ func UnsubscribeAll(client *ClientInfo) {
 }
 
 func unsubscribeAllClients() {
-	GlobalSubscriptionInfo.Lock()
-	GlobalSubscriptionInfo.Members = nil
-	GlobalSubscriptionInfo.Unlock()
+	GlobalSubscriptionLock.Lock()
+	GlobalSubscriptionInfo = nil
+	GlobalSubscriptionLock.Unlock()
 	ChatSubscriptionLock.Lock()
 	ChatSubscriptionInfo = make(map[string]*SubscriberList)
 	ChatSubscriptionLock.Unlock()
diff --git a/socketserver/server/utils.go b/socketserver/server/utils.go
index 07866e4b..258acda1 100644
--- a/socketserver/server/utils.go
+++ b/socketserver/server/utils.go
@@ -160,6 +160,38 @@ func RemoveFromSliceC(ary *[]chan<- ClientMessage, val chan<- ClientMessage) boo
 	return true
 }
 
+func AddToSliceCl(ary *[]*ClientInfo, val *ClientInfo) bool {
+	slice := *ary
+	for _, v := range slice {
+		if v == val {
+			return false
+		}
+	}
+
+	slice = append(slice, val)
+	*ary = slice
+	return true
+}
+
+func RemoveFromSliceCl(ary *[]*ClientInfo, val *ClientInfo) bool {
+	slice := *ary
+	var idx int = -1
+	for i, v := range slice {
+		if v == val {
+			idx = i
+			break
+		}
+	}
+	if idx == -1 {
+		return false
+	}
+
+	slice[idx] = slice[len(slice)-1]
+	slice = slice[:len(slice)-1]
+	*ary = slice
+	return true
+}
+
 func AddToSliceB(ary *[]bunchSubscriber, client *ClientInfo, mid int) bool {
 	newSub := bunchSubscriber{Client: client, MessageID: mid}
 	slice := *ary