[keycloak-dev] jgroups / infinispan exception while doing load tests - causing cluster to stop working

Hi, we are running series of performance tests for our cluster KeyCloak setup and we have encountered some pretty low level exception with jgroups/infinispan. TL;DR; version - we are performing 450 req/sec over the period of 30 minutes - we doing simple GET calls - getting access token from auth/realms/test/protocol/openid-connect/token - at some point inifinispan / jgroups fails and we have to restart the whole cluster. The exception seems to be very low level [1] For the longer version we have captured our results in the Google doc [2] (access for Red Hat only at the moment) Any ideas / suggestion how to troubleshoot this problem more than welcome :) Cheers, Bartosz. [1] https://gist.github.com/hectorj2f/5cbd98fadeba019dc94af08219183640#file-l... [2] https://docs.google.com/a/redhat.com/document/d/1gcuQbEL2ZTiVcmy39EFMVV9f... ​