Hi David, Hi Jose, we’ve also seen this today when debugging Keycloak with Jose. Looks like we need to add null checks to https://github.com/aerogear/keycloak-metrics-spi/blob/mobile-metrics/src/... and https://github.com/aerogear/keycloak-metrics-spi/blob/mobile-metrics/src/... Jose found another issue: For the metrics to work we need to add the metrics-listener to every Realm we are interested in (metrics wise). That happens automatically for the Project realm. But if the user creates a new Realm in Keycloak or through a custom config file then this listener is not added. To enable metrics the user would have to add the listener manually in the Keycloak Admin Panel. @David: do you think this is an issue? It means additional config steps for custom Realms that need to be documented.

I think it’s possible to add the metrics-listener to every realm automatically by configuring it in standalone.xml: http://www.keycloak.org/docs/3.3/server_installation/topics/config-subsys... Especially by running a CLI command to add a SPI to the config: http://www.keycloak.org/docs/3.3/server_installation/topics/config-subsys... Will look into this with Jose. Regards, Peter Am 12.02.2018 um 18:23 schrieb David Martin <davmarti(a)redhat.com&gt;: @Jose, @Peter, sharing this on the lists in case anyone else comes across it (I came across it while chatting with Jose on IRC). I also see successful events being logged in keycloak and getting through to prometheus & the grafana dashboard. 17:12:49,764 ERROR [org.keycloak.events.EventBuilder] (default task-75) Failed to send type to org.jboss.aerogear.keycloak.metrics.MetricsEventListener@535339d3: java.lang.NullPointerException Full logs & stack https://gist.github.com/david-martin/430709202e4064fe49e6df139380bd2d Images being used: aerogearcatalog/keycloak-apb latest 0a791099254b 4 days ago 669MB jboss/keycloak-openshift 3.4.3.Final a032ac87a920 5 weeks ago 844MB aerogearcatalog/metrics-apb latest 058e78efe352 4 days ago 669MB -- David Martin Red Hat Mobile Twitter: @irldavem IRC: @irldavem (#aerogear)