[ https://issues.jboss.org/browse/ISPN-2522?page=com.atlassian.jira.plugin.... ] Dan Berindei commented on ISPN-2522: ------------------------------------ Found a small problem in the test: Infinispan registers with the TM as a synchronization, and the commit is one-phase (because locking mode is pessimistic). The TM swallows any errors in the after completion method, and it looks like there was a problem with the state transfer when in fact the prepare timed out: {noformat} ERROR [InvocationContextInterceptor] (WriterThread,StateTransferFunctionalTest-NodeQ-45640:) ISPN000136: Execution errororg.infinispan.util.concurrent.TimeoutException: Timed out after 30 seconds waiting for a response from StateTransferFunctionalTest-NodeR-39004 at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.processCalls(CommandAwareRpcDispatcher.java:432) at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.invokeRemoteCommands(CommandAwareRpcDispatcher.java:130) at org.infinispan.remoting.transport.jgroups.JGroupsTransport.invokeRemotely(JGroupsTransport.java:529) at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:280) at org.infinispan.interceptors.distribution.TxDistributionInterceptor.prepareOnAffectedNodes(TxDistributionInterceptor.java:214) at org.infinispan.interceptors.distribution.TxDistributionInterceptor.visitPrepareCommand(TxDistributionInterceptor.java:198) {noformat} The prepare probably timed out because it was blocked waiting for the transaction data for the new topology to be received, but there are no trace logs to confirm that. -- This message was sent by Atlassian JIRA (v6.2.6#6264)