RH-SSO Cross DC Architecture Error Transaction Rollback Error in Data Grid

Issue

• RH-SSO shows error in server.log:

  14:23:23,732 WARN  [org.infinispan.client.hotrod.impl.protocol.Codec21] (Thread-0) ISPN004005: Error received from the server: javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.
  14:23:23,733 ERROR [org.keycloak.services] (Timer-2) KC-SERVICES0089: Failed to run scheduled task AbstractLastSessionRefreshStoreFactory$$Lambda$1001/1170065448: org.infinispan.client.hotrod.exceptions.HotRodClientException:Request for messageId=653 returned server error (status=0x85): javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.
      at org.infinispan.client.hotrod.impl.protocol.Codec20.checkForErrorsInResponseStatus(Codec20.java:333)
      at org.infinispan.client.hotrod.impl.protocol.Codec20.readHeader(Codec20.java:179)
      at org.infinispan.client.hotrod.impl.transport.netty.HeaderDecoder.decode(HeaderDecoder.java:138)
      at org.infinispan.client.hotrod.impl.transport.netty.HintedReplayingDecoder.callDecode(HintedReplayingDecoder.java:98
  

• RHDG shows error in log:

  14:23:23,943 ERROR [org.infinispan.interceptors.impl.InvocationContextInterceptor] (jgroups-13,ip-10-25-8-33) ISPN000136: Error executing command PrepareCommand on Cache 'work', writing keys [WrappedByteArray{bytes=[B0x033E246265316562..[39], hashCode=-1630050692}]: org.infinispan.xsite.BackupFailureException: The local cache work failed to backup data to the remote sites:
  ip-10-25-14-41: org.infinispan.remoting.transport.jgroups.SuspectException: ISPN000400: Node null was suspected
  ip-10-25-14-6: org.infinispan.remoting.transport.jgroups.SuspectException: ISPN000400: Node null was suspected
      at org.infinispan.xsite.BackupSenderImpl.processFailedResponses(BackupSenderImpl.java:279)
      at org.infinispan.xsite.BackupSenderImpl.processResponses(BackupSenderImpl.java:165)
      at org.infinispan.interceptors.xsite.BaseBackupInterceptor.lambda$processBackupResponse$0(BaseBackupInterceptor.java:66)
      at org.infinispan.interceptors.InvocationSuccessAction.apply(InvocationSuccessAction.java:22)
      at org.infinispan.interceptors.impl.QueueAsyncInvocationStage.invokeQueuedHandlers(QueueAsyncInvocationStage.java:118)