I have some kind of a problem with my docker set-up.
Here is the case:
I have a web-app (java spring-boot). The app servers JSON
I also have angular app which calls this API.
The problem i see, is that the response times are almost double when the app is running inside the swarm cluster.
If the app is started in stand-alone docker container, it works fine(almost the same as when started on the command line w/o docker at all)
When the app is running as a service in swarm cluster, my response times are almost double compared to the stand-alone app and stand-alone docker container.
The application is 100% the same in stand-alone and in swarm mode(one and the same JAR file)
The response sizes vary from ~3MB to few KB. The responses are slow even with very small response sizes…
From what i see/understand, the difference is the network type. In stand-alone docker container it is bridge, and in swarm mode it is overlay.
For not this is a show stopper for me as the responses in swarm mode exceed ~750ms compared to ~400ms in stand-alone mode.
Has anyone had this problem ?
Any ideas what can i do to solve it ?