I don't have the link, but search the email archives of keycloak-user/keycloak-dev There was a long discussion about this. Basically, you can't use multicast and you have to configure jgroups/infinispan to use a different protocol.

On 2/10/2016 3:00 PM, Riddhi Rathod wrote:

I am trying to setup keycloak cluster with a shared database in AWS environment. I followed all steps mentioned on this link: http://keycloak.github.io/docs/userguide/keycloak-server/html/clustering.html

Keycloak nodes are AWS EC2 and shared database is AWS RDS. How does the keycloak instances identify each other in cluster in AWS (how does multicast work in a AWS VPC)?

Has anyone tried this before? Any references or things to take care of list would be great.

Thank you,

Riddhi Rathod

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