Clustering : Exception on recovery Cache loader returning null for key

These exceptions are seen on recovery which are preventing recovery from happening.

2014-09-11 02:59:09,916 | WARN | lt-dispatcher-18 | ShardManager | 152 - com.typesafe.akka.slf4j - 2.3.4 | akka://opendaylight-cluster-data/user/shardmanager-config | Supervisor Strategy of resume applied
at com.google.common.cache.LocalCache$Segment.getAndRecordStats(LocalCache.java:2412)
at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2380)
at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2342)
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2257)
at com.google.common.cache.LocalCache.get(LocalCache.java:4000)
at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:4004)
at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4874)
at org.opendaylight.yangtools.yang.data.impl.schema.tree.DataNodeContainerModificationStrategy.getChild(DataNodeContainerModificationStrategy.java:81)
at org.opendaylight.yangtools.yang.data.impl.schema.tree.DataNodeContainerModificationStrategy$ContainerModificationStrategy.getChild(DataNodeContainerModificationStrategy.java:119)
at org.opendaylight.yangtools.yang.data.impl.schema.tree.RootModificationApplyOperation.getChild(RootModificationApplyOperation.java:66)
at org.opendaylight.yangtools.yang.data.impl.schema.tree.TreeNodeUtils.findNodeChecked(TreeNodeUtils.java:53)
at org.opendaylight.yangtools.yang.data.impl.schema.tree.InMemoryDataTreeModification.resolveModificationStrategy(InMemoryDataTreeModification.java:137)
at org.opendaylight.yangtools.yang.data.impl.schema.tree.InMemoryDataTreeModification.resolveModificationFor(InMemoryDataTreeModification.java:143)
at org.opendaylight.yangtools.yang.data.impl.schema.tree.InMemoryDataTreeModification.merge(InMemoryDataTreeModification.java:73)
at org.opendaylight.controller.md.sal.dom.store.impl.SnapshotBackedWriteTransaction.merge(SnapshotBackedWriteTransaction.java:85)
at org.opendaylight.controller.cluster.datastore.modification.MergeModification.apply(MergeModification.java:37)
at org.opendaylight.controller.cluster.datastore.modification.MutableCompositeModification.apply(MutableCompositeModification.java:33)
at org.opendaylight.controller.cluster.datastore.Shard.commit(Shard.java:330)
at org.opendaylight.controller.cluster.datastore.Shard.applyState(Shard.java:444)
at org.opendaylight.controller.cluster.raft.RaftActor.onReceiveRecover(RaftActor.java:151)
at org.opendaylight.controller.cluster.datastore.Shard.onReceiveRecover(Shard.java:175)
at akka.persistence.UntypedPersistentActor$$anonfun$receiveRecover$1.applyOrElse(Eventsourced.scala:433)
at scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)
at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)
at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)
at akka.persistence.Eventsourced$$anonfun$akka$persistence$Eventsourced$$recoveryBehavior$1.applyOrElse(Eventsourced.scala:168)
at akka.persistence.Recovery$State$$anonfun$processPersistent$1.apply(Recovery.scala:33)
at akka.persistence.Recovery$State$$anonfun$processPersistent$1.apply(Recovery.scala:33)
at akka.persistence.Recovery$class.withCurrentPersistent(Recovery.scala:176)
at akka.persistence.UntypedPersistentActor.withCurrentPersistent(Eventsourced.scala:428)
at akka.persistence.Recovery$State$class.processPersistent(Recovery.scala:33)
at akka.persistence.Recovery$$anon$1.processPersistent(Recovery.scala:95)
at akka.persistence.Recovery$$anon$1.aroundReceive(Recovery.scala:101)
at akka.persistence.Recovery$class.aroundReceive(Recovery.scala:256)
at akka.persistence.UntypedPersistentActor.akka$persistence$Eventsourced$$super$aroundReceive(Eventsourced.scala:428)
at akka.persistence.Eventsourced$$anon$1.aroundReceive(Eventsourced.scala:35)
at akka.persistence.Eventsourced$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)
2014-09-11 02:59:09,916 | WARN | lt-dispatcher-18 | OneForOneStrategy | 152 - com.typesafe.akka.slf4j - 2.3.4 | akka://opendaylight-cluster-data/user/shardmanager-config/member-3-shard-default-config | CacheLoader returned null for key (urn:opendaylight:params:xml:ns:yang:controller:config:sal-clustering-it:car-people?revision=2014-08-18)car-people.