I managed to catch an issue and need some help. My setup is an Amazon ELB -> Docker/Rancher hosts with load-balancers -> docker containers.
For whatever reason, HAProxy crashed on 1 host, which happened to be the next host for the ELB. That resulted in a 503 Service Unavailable: Back-end server is at capacity.
- How do I troubleshoot this, since Rancher deletes the loadbalancer container on failure?
- Is this an existing problem that would be fixed by upgrading to v0.56.1? In looking at the release notes, it seems this might be improved, but I’m not positive.