XSiteSimpleTestCase.testPutRelayedToBackups intermittently fails in ~5% cases with "no physical address for" ------------------------------------------------------------------------------------------------------------ Key: WFLY-5239 URL: https://issues.jboss.org/browse/WFLY-5239 Project: WildFly Issue Type: Bug Components: Clustering, Test Suite Affects Versions: 10.0.0.Beta2 Reporter: Radoslav Husar Assignee: Radoslav Husar Fix For: 11.0.0.Alpha1 I have done some work to stabilize this test a little more by switching both stacks (default stack and the bridge stack) to tcp. This does not help the test completely, it still fails with the well known: {noformat} rhusar &amp#27;[0m&amp#27;[0m15:14:52,808 INFO [org.jboss.as.server] (management-handler-thread - 4) WFLYSRV0010: Deployed "xsite.war" (runtime-name : "xsite.war") &amp#27;[0mExecuting HTTP request: http://[::1]:8080/xsite/cache?operation=put&key=a&value=100 &amp#27;[33m15:14:53,513 WARNING [org.jgroups.protocols.TCP] (TransferQueueBundler,ee,LON-1) JGRP000032: LON-1: no physical address for a9d43ee2-698a-fbab-2ed8-fb54009f7af4, dropping message &amp#27;[0m&amp#27;[33m15:14:55,581 WARNING [org.jgroups.protocols.TCP] (TransferQueueBundler,ee,LON-1) JGRP000032: LON-1: no physical address for a9d43ee2-698a-fbab-2ed8-fb54009f7af4, dropping message &amp#27;[0m&amp#27;[33m15:14:57,583 WARNING [org.jgroups.protocols.TCP] (TransferQueueBundler,ee,LON-1) JGRP000032: LON-1: no physical address for a9d43ee2-698a-fbab-2ed8-fb54009f7af4, dropping message &amp#27;[0m&amp#27;[33m15:14:59,584 WARNING [org.jgroups.protocols.TCP] (TransferQueueBundler,ee,LON-1) JGRP000032: LON-1: no physical address for a9d43ee2-698a-fbab-2ed8-fb54009f7af4, dropping message &amp#27;[0m&amp#27;[33m15:15:01,585 WARNING [org.jgroups.protocols.TCP] (TransferQueueBundler,ee,LON-1) JGRP000032: LON-1: no physical address for a9d43ee2-698a-fbab-2ed8-fb54009f7af4, dropping message &amp#27;[0m&amp#27;[33m15:15:03,277 WARN [org.infinispan.xsite.BackupSenderImpl] (default task-1) ISPN000202: Problems backing up data for cache dist to site NYC: org.infinispan.util.concurrent.TimeoutException: Timed out after 10 seconds waiting for a response from NYC (sync, timeout=10000) &amp#27;[0mExecuted HTTP request &amp#27;[33m15:15:03,586 WARNING [org.jgroups.protocols.TCP] (TransferQueueBundler,ee,LON-1) JGRP000032: LON-1: no physical address for a9d43ee2-698a-fbab-2ed8-fb54009f7af4, dropping message &amp#27;[0m&amp#27;[33m15:15:05,591 WARNING [org.jgroups.protocols.TCP] (TransferQueueBundler,ee,LON-1) JGRP000032: LON-1: no physical address for a9d43ee2-698a-fbab-2ed8-fb54009f7af4, dropping message 17:02 {noformat}