log once not for each closure

Author: markusgust

src/amqproxy/upstream.cr

@@ -117,12 +117,12 @@ module AMQProxy
       clients = Set(Client).new
       @channels_lock.synchronize do
         return if @channels.empty?
+        Log.debug { "Upstream connection closed, closing #{@channels.size} client connections" }
         @channels.each_value do |downstream_connection|
           clients << downstream_connection.client
         end
 
         clients.each do |client|
-          Log.debug { "Closing client connection due to upstream failure." }
           client.close_connection(code, reason)
         end
         @channels.clear