[keycloak-user] Logouts / how to disable keycloak "user session" cache?

[Christian Schwarz]

Ok, thank you Stian for the fast reply!

I will look into using jgroups S3_PING module that supports AWS, and that I think will work with docker-cloud as well since it accepts system properties where I can set the current IP address.

Just plain old clustering with a database as shared data store and sticky sessions to a keycloak instance would be a nice default clustering option in the future (but I’m sure you have enough on your plate already :)

Keep up the good work!

Christian

On 07 Apr 2016, at 12:40, Stian Thorgersen <sthorger at redhat.com<mailto:sthorger at redhat.com>> wrote:

It is not currently possible to run multiple nodes without clustering. However, it's possible to configure JGroups to work on AWS. I can't remember the configuration required though, but if you search the user mailing list you'll find instructions or google for JGroups and AWS.

On 7 April 2016 at 10:22, Christian Schwarz <christian at datek.no<mailto:christian at datek.no>> wrote:
Hi!

I'm trying to setup a keycloak cluster on AWS, which does not support UDP multicast. IP addresses of the nodes are also not known in advance (I'm using docker-cloud), so Infinispan/JGroups ("keycloak-ha-posgres" docker image) for user session replication will not work (seems that it requires either UDP multicast or IP addresses known in advance).

The main problem I have is that logout is not working propertly. I only get logged out from one of the two keycloak nodes.

I have tried to disable the user cache (by setting userCache.default.enabled = false) and to disable infinispan (by using “keycloak-postgres” docker image), but to no avail. The “other” keycloak node still thinks that the user is logged in, it’s not refreshing the user session from the database even if user cache and infinispan cluster cache is disbled.

=> Is there a possibility of using the database as a synchronization point between keycloak nodes? (i.e. each node always checks logout status in the database)
Or is there another way of getting a keycloak cluster up and running on AWS when IP addresses are not known in advance?

I hope there is a way… :)

Kind regards,
Christian

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