https://access.redhat.com/documentation/en-US/Red_Hat_JBoss_Fuse/6.1/html/Cloud_Deployment_Guide/files/OSE-ConfigureNodes.html

Step #5 for the OSE 2.2 it isn't sufficient to restrart openshift-sni-proxy service, new rebuild command needs to be executed to apply the changes in config file.

oo-rebuild-haproxy-sni-proxy