Timeout errors in the mass indexing tests

org.infinispan.util.concurrent.TimeoutException: Node DistProgrammaticMassIndexTest-NodeC-7069 timed out
    at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.invokeRemoteCommand(CommandAwareRpcDispatcher.java:174)
    at org.infinispan.remoting.transport.jgroups.JGroupsTransport.invokeRemotely(JGroupsTransport.java:521)
    at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:280)
    at org.infinispan.query.indexmanager.InfinispanCommandsBackend.sendCommand(InfinispanCommandsBackend.java:87)
    at org.infinispan.query.indexmanager.InfinispanCommandsBackend.applyWork(InfinispanCommandsBackend.java:81)
    at org.infinispan.query.indexmanager.MasterSwitchDelegatingQueueProcessor.applyWork(MasterSwitchDelegatingQueueProcessor.java:53)
    at org.hibernate.search.indexes.impl.DirectoryBasedIndexManager.performOperations(DirectoryBasedIndexManager.java:126)
    at org.hibernate.search.backend.impl.WorkQueuePerIndexSplitter.commitOperations(WorkQueuePerIndexSplitter.java:63)
    at org.hibernate.search.backend.impl.BatchedQueueingProcessor.performWorks(BatchedQueueingProcessor.java:99)
    at org.hibernate.search.backend.impl.TransactionalWorker.performWork(TransactionalWorker.java:105)
    at org.infinispan.query.backend.QueryInterceptor.performSearchWorks(QueryInterceptor.java:232)
    at org.infinispan.query.backend.QueryInterceptor.purgeAllIndexes(QueryInterceptor.java:207)
    at org.infinispan.query.backend.QueryInterceptor.purgeAllIndexes(QueryInterceptor.java:199)
    at org.infinispan.query.impl.massindex.MapReduceMassIndexer.wipeExistingIndexes(MapReduceMassIndexer.java:33)
    at org.infinispan.query.impl.massindex.MapReduceMassIndexer.start(MapReduceMassIndexer.java:24)
    at org.infinispan.query.distributed.DistributedMassIndexingTest.rebuildIndexes(DistributedMassIndexingTest.java:75)
    at org.infinispan.query.distributed.DistributedMassIndexingTest.testReindexing(DistributedMassIndexingTest.java:63)
Caused by: org.jgroups.TimeoutException: timeout sending message to DistProgrammaticMassIndexTest-NodeC-7069
    at org.jgroups.blocks.MessageDispatcher.sendMessage(MessageDispatcher.java:419)
    at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.processSingleCall(CommandAwareRpcDispatcher.java:349)
    at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.invokeRemoteCommand(CommandAwareRpcDispatcher.java:167)
    ... 37 more