I have a UCP cluster installed on 2 machines. About 50% of the time, when I choose a running application container and tell it to “scale” on several machines, there will be no “loading” symbol and I will be immediately returned to the page for that machine without any message given. Then, when I refresh or go to a different page, I’ll get a 404 error which will persist for a few minutes before the UCP web console becomes available again. This occurs with all containers I’ve tried.
Also, on the few times it does work, it will not scale to both machines. It will only create new containers on one of the machines. I get the same behavior when I run the “docker-compose scale” command directly from the machines as well. Not sure if these issues are related in anyway.
Docker Engine 1.10
Swarm 1.1.0-rc2 (installed by the UCP install)
All on EC2 instances.
Please let me know what additional information I can provide to help debug.
Thank you for your time