lib/mongo/cluster.rb in mongo-2.11.2 vs lib/mongo/cluster.rb in mongo-2.11.3

@@ -107,9 +107,11 @@
       if options[:monitoring_io] == false && !options.key?(:cleanup)
         options = options.dup
         options[:cleanup] = false
       end
 
+      seeds = seeds.uniq
+
       @servers = []
       @monitoring = monitoring
       @event_listeners = Event::Listeners.new
       @options = options.freeze
       @app_metadata = Server::AppMetadata.new(@options)