X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/964ab3dd90ff1508efc0c77378cde2b3a4da1029..6f1c0e1dd16f53ce4fb7e8785a130e5f588500e5:/services/api/app/middlewares/rack_socket.rb

diff --git a/services/api/app/middlewares/rack_socket.rb b/services/api/app/middlewares/rack_socket.rb
index 19350c40e6..8f82e585df 100644
--- a/services/api/app/middlewares/rack_socket.rb
+++ b/services/api/app/middlewares/rack_socket.rb
@@ -69,6 +69,10 @@ class RackSocket
   def call env
     request = Rack::Request.new(env)
     if request.path_info == @endpoint and Faye::WebSocket.websocket?(env)
+      if @handler.overloaded?
+        return [503, {"Content-Type" => "text/plain"}, ["Too many connections, try again later."]]
+      end
+
       ws = Faye::WebSocket.new(env, nil, :ping => 30)
 
       # Notify handler about new connection