Clustering : Transaction not created as Leader is not found

I had given the shard name as car-person instead of car-people (which was there in the namespace) – In this case the sharding strategy should have defaulted to default shard but in my cluster scenario – I got the following exception
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Caused by: java.lang.IllegalStateException: Could not find leader so transaction cannot be created

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i.e. leader could not be determined when I did some REST Conf operations on car-people module..

errors: [error-type: application, error-tag: operation-failed, error-message: Problem to get data from transaction.error-info: ReadFailedException

{message=Error reading data for path /(urn:opendaylight:params:xml:ns:yang:controller:config:sal-clustering-it:car-people?revision=2014-08-18)car-people, errorList=[RpcError [message=Error reading data for path /(urn:opendaylight:params:xml:ns:yang:controller:config:sal-clustering-it:car-people?revision=2014-08-18)car-people, severity=ERROR, errorType=APPLICATION, tag=operation-failed, applicationTag=null, info=null, cause=org.opendaylight.controller.cluster.datastore.exceptions.TimeoutException: Sending message class org.opendaylight.controller.protobuff.messages.transaction.ShardTransactionMessages$CreateTransaction to actor ActorSelection[Anchor(akka://opendaylight-cluster-data/), Path(/user/shardmanager-config/member-1-shard-default-config)] failed]]}

at org.opendaylight.controller.cluster.datastore.TransactionProxy$NoOpTransactionContext.readData(TransactionProxy.java:792)
at org.opendaylight.controller.cluster.datastore.TransactionProxy.read(TransactionProxy.java:242)
at org.opendaylight.controller.md.sal.dom.broker.impl.DOMForwardedReadOnlyTransaction.read(DOMForwardedReadOnlyTransaction.java:40)
at org.opendaylight.controller.sal.restconf.impl.BrokerFacade.readDataViaTransaction(BrokerFacade.java:181)
at org.opendaylight.controller.sal.restconf.impl.BrokerFacade.readConfigurationData(BrokerFacade.java:77)
at org.opendaylight.controller.sal.restconf.impl.RestconfImpl.readConfigurationData(RestconfImpl.java:631)
at org.opendaylight.controller.sal.restconf.impl.StatisticsRestconfServiceWrapper.readConfigurationData(StatisticsRestconfServiceWrapper.java:84)
at sun.reflect.GeneratedMethodAccessor167.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185)
at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
at com.sun.jersey.server.impl.uri.rules.ResourceObjectRule.accept(ResourceObjectRule.java:100)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1511)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1442)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1391)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1381)
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:538)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:716)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:501)
at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:69)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)
at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:240)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:77)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:370)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494)
at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:971)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1033)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:644)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:667)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Thread.java:744)
Caused by: org.opendaylight.controller.cluster.datastore.exceptions.TimeoutException: Sending message class org.opendaylight.controller.protobuff.messages.transaction.ShardTransactionMessages$CreateTransaction to actor ActorSelection[Anchor(akka://opendaylight-cluster-data/), Path(/user/shardmanager-config/member-1-shard-default-config)] failed
at org.opendaylight.controller.cluster.datastore.utils.ActorContext.executeRemoteOperation(ActorContext.java:186)
at org.opendaylight.controller.cluster.datastore.utils.ActorContext.executeShardOperation(ActorContext.java:239)
at org.opendaylight.controller.cluster.datastore.TransactionProxy.createTransactionIfMissing(TransactionProxy.java:375)
at org.opendaylight.controller.cluster.datastore.TransactionProxy.read(TransactionProxy.java:240)
... 50 more
Caused by: java.lang.IllegalStateException: Could not find leader so transaction cannot be created
at org.opendaylight.controller.cluster.datastore.Shard.onReceiveCommand(Shard.java:209)
at akka.persistence.UntypedPersistentActor.onReceive(Eventsourced.scala:430)
at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:167)
at akka.persistence.Recovery$State$class.process(Recovery.scala:30)
at akka.persistence.ProcessorImpl$$anon$2.process(Processor.scala:103)
at akka.persistence.ProcessorImpl$$anon$2.aroundReceive(Processor.scala:114)
at akka.persistence.Recovery$class.aroundReceive(Recovery.scala:256)
at akka.persistence.UntypedPersistentActor.akka$persistence$Eventsourced$$super$aroundReceive(Eventsourced.scala:428)
at akka.persistence.Eventsourced$$anon$2.doAroundReceive(Eventsourced.scala:82)
at akka.persistence.Eventsourced$$anon$2.aroundReceive(Eventsourced.scala:78)
at akka.persistence.Eventsourced$class.aroundReceive(Eventsourced.scala:369)
at akka.persistence.UntypedPersistentActor.aroundReceive(Eventsourced.scala:428)
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
at akka.actor.ActorCell.invoke(ActorCell.scala:487)
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238)
at akka.dispatch.Mailbox.run(Mailbox.scala:220)
at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:393)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)