so apparently that never happens on prod

modules/common/src/main/mon.scala

@@ -292,7 +292,6 @@ object mon {
       val site = rec("socket.count.site")
     }
     def queueSize(name: String) = rec(s"socket.queue_size.$name")
-    def pushChannelClosed = inc("socket.push.channel_closed")
   }
   object trouper {
     def queueSize(name: String) = rec(s"trouper.queue_size.$name")

modules/socket/src/main/SocketMember.scala

@@ -10,11 +10,7 @@ trait SocketMember {
 
   def isAuth = userId.isDefined
 
-  def push(msg: JsValue) = try {
-    channel push msg
-  } catch {
-    case _: java.nio.channels.ClosedChannelException => lila.mon.socket.pushChannelClosed()
-  }
+  def push(msg: JsValue) = channel push msg
 
   def end = channel.end
 }