Clustering : Exception seen at clustering startup in karaf distribution

The following exception is seen when clustering is started up (after being installed).

Exception in thread "pool-37-thread-4" org.opendaylight.controller.cluster.datastore.exceptions.TimeoutException: Sending message class org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListener to actor Actorakka://opendaylight-cluster-data/user/shardmanager-config/member-1-shard-inventory-config#-2143120719 failed
at org.opendaylight.controller.cluster.datastore.utils.ActorContext.executeLocalOperation(ActorContext.java:166)
at org.opendaylight.controller.cluster.datastore.utils.ActorContext.executeLocalShardOperation(ActorContext.java:254)
at org.opendaylight.controller.cluster.datastore.DistributedDataStore.registerChangeListener(DistributedDataStore.java:85)
at org.opendaylight.controller.md.sal.dom.broker.impl.DOMDataBrokerImpl.registerDataChangeListener(DOMDataBrokerImpl.java:84)
at org.opendaylight.controller.md.sal.dom.broker.impl.DOMDataBrokerImpl.registerDataChangeListener(DOMDataBrokerImpl.java:36)
at org.opendaylight.controller.sal.dom.broker.osgi.DOMDataBrokerProxy.registerDataChangeListener(DOMDataBrokerProxy.java:40)
at org.opendaylight.controller.sal.dom.broker.osgi.DOMDataBrokerProxy.registerDataChangeListener(DOMDataBrokerProxy.java:15)
at org.opendaylight.controller.md.sal.binding.impl.AbstractForwardedDataBroker.registerDataChangeListener(AbstractForwardedDataBroker.java:81)
at org.opendaylight.controller.md.sal.binding.impl.ForwardedBackwardsCompatibleDataBroker.registerDataChangeListener(ForwardedBackwardsCompatibleDataBroker.java:116)
at org.opendaylight.controller.md.sal.binding.util.AbstractBindingSalConsumerInstance.registerDataChangeListener(AbstractBindingSalConsumerInstance.java:105)
at org.opendaylight.controller.md.statistics.manager.StatisticsProvider.start(StatisticsProvider.java:100)
at org.opendaylight.controller.md.statistics.manager.StatisticsManagerActivator.onSessionInitiated(StatisticsManagerActivator.java:26)
at org.opendaylight.controller.md.sal.binding.util.BindingContextUtils.createProviderContextAndInitialize(BindingContextUtils.java:57)
at org.opendaylight.controller.sal.binding.impl.RootBindingAwareBroker.registerProvider(RootBindingAwareBroker.java:146)
at org.opendaylight.controller.sal.binding.api.AbstractBindingAwareProvider.onBrokerAvailable(AbstractBindingAwareProvider.java:22)
at org.opendaylight.controller.sal.binding.api.AbstractBrokerAwareActivator$1$1.run(AbstractBrokerAwareActivator.java:34)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.util.concurrent.TimeoutException: Futures timed out after [5 seconds]
at scala.concurrent.impl.Promise$DefaultPromise.ready(Promise.scala:219)
at scala.concurrent.impl.Promise$DefaultPromise.result(Promise.scala:223)
at scala.concurrent.Await$$anonfun$result$1.apply(package.scala:107)
at scala.concurrent.BlockContext$DefaultBlockContext$.blockOn(BlockContext.scala:53)
at scala.concurrent.Await$.result(package.scala:107)
at scala.concurrent.Await.result(package.scala)
at org.opendaylight.controller.cluster.datastore.utils.ActorContext.executeLocalOperation(ActorContext.java:164)