[keycloak-dev] Infinispan error during update in ha configuration

Hello! I have Keycloak 4.5.0.Final deployed in standalone-ha configuration in k8s cluster. When I try to update Keycloak to version 6.0.1, the following happens: 1. K8s starts new pod with version 6.0.1 2. Old pod still running, it will be terminated on successfull readiness probe of the new pod 3. New pod discovers old pod via JGroups, cache synchronization started 4. Exception in new pod: 02-07-2019;13:34:29,220 WARN [stateTransferExecutor-thread--p25-t1] org.infinispan.statetransfer.InboundTransferTask ISPN000210: Failed to request state of cache work from node idp-6569c544b -hsd6g, segments {0-255}: org.infinispan.remoting.RemoteException: ISPN000217: Received exception from idp-6569c544b-hsd6g, see cause for remote stack trace at org.infinispan(a)9.4.8.Final //org.infinispan.remoting.transport.ResponseCollectors.wrapRemoteException(ResponseCollectors.java:28) ... Caused by: java.io.IOException: Unknown type: 132 at org.infinispan.marshall.core.GlobalMarshaller.readNonNullableObject(GlobalMarshaller.java:681) at org.infinispan.marshall.core.GlobalMarshaller.readNullableObject(GlobalMarshaller.java:355) at org.infinispan.marshall.core.BytesObjectInput.readObject(BytesObjectInput.java:40) Looks like this exception blocks further Keycloak startup, because nothing happens in logs afterwards. Also, my rest service deployed as JAX-RS bean also doesn't respond, so pod is not treated as alive by Kubernetes. Please help.