[keycloak-user] KeyCloak 3.1.0 on OpenShift randomly unresponsive

We are currently facing an issue on our production environment in which the KeyCloak server becomes unresponsive at (what still looks like) random. Tried to look into memory, cpu load and disk usage of the specific OpenShift gear and gone through all of the logs but nothing out of the ordinary could be found. Looks like the application continues to run and still keeps logging, but none of the customers (realms) is able to login anymore. Has anyone experienced the same with this KeyCloak version? Kind regards, Anton Arntz