When i restart the ovsdb controller i see following exception. After this exception i am not able to access the network-topology shard, it keep throwing exception with the reason "Found primary shard member-1-shard-topology-config but it's not initialized yet. Please try again later". Attached karaf log has all the detailed exceptions.

2015-11-04 22:48:40,171 | WARN | lt-dispatcher-17 | ShardManager | 150 - org.opendaylight.controller.sal-distributed-datastore - 1.3.0.SNAPSHOT | Supervisor Strategy caught unexpected exception - resuming
java.lang.IllegalArgumentException: Unsupported modification APPEARED
at org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidates$NodeIterator.next(DataTreeCandidates.java:124)[66:org.opendaylight.yangtools.yang-data-api:0.8.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidates.applyToModification(DataTreeCandidates.java:60)[66:org.opendaylight.yangtools.yang-data-api:0.8.0.SNAPSHOT]
at org.opendaylight.controller.cluster.datastore.ShardRecoveryCoordinator.appendRecoveredLogEntry(ShardRecoveryCoordinator.java:68)[150:org.opendaylight.controller.sal-distributed-datastore:1.3.0.SNAPSHOT]
at org.opendaylight.controller.cluster.raft.RaftActorRecoverySupport.batchRecoveredLogEntry(RaftActorRecoverySupport.java:187)[147:org.opendaylight.controller.sal-akka-raft:1.3.0.SNAPSHOT]
at org.opendaylight.controller.cluster.raft.RaftActorRecoverySupport.onRecoveredApplyLogEntries(RaftActorRecoverySupport.java:167)[147:org.opendaylight.controller.sal-akka-raft:1.3.0.SNAPSHOT]
at org.opendaylight.controller.cluster.raft.RaftActorRecoverySupport.handleRecoveryMessage(RaftActorRecoverySupport.java:69)[147:org.opendaylight.controller.sal-akka-raft:1.3.0.SNAPSHOT]
at org.opendaylight.controller.cluster.raft.RaftActor.handleRecover(RaftActor.java:171)[147:org.opendaylight.controller.sal-akka-raft:1.3.0.SNAPSHOT]
at org.opendaylight.controller.cluster.common.actor.AbstractUntypedPersistentActor.onReceiveRecover(AbstractUntypedPersistentActor.java:48)[146:org.opendaylight.controller.sal-clustering-commons:1.3.0.SNAPSHOT]
at org.opendaylight.controller.cluster.datastore.Shard.onReceiveRecover(Shard.java:205)[150:org.opendaylight.controller.sal-distributed-datastore:1.3.0.SNAPSHOT]
at akka.persistence.UntypedPersistentActor$$anonfun$receiveRecover$1.applyOrElse(Eventsourced.scala:433)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)[132:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]
at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)[132:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]
at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)[132:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]
at akka.persistence.Eventsourced$$anonfun$akka$persistence$Eventsourced$$recoveryBehavior$1.applyOrElse(Eventsourced.scala:168)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.persistence.Recovery$class.runReceive(Recovery.scala:48)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.persistence.UntypedPersistentActor.runReceive(Eventsourced.scala:428)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.persistence.Recovery$State$$anonfun$processPersistent$1.apply(Recovery.scala:33)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.persistence.Recovery$State$$anonfun$processPersistent$1.apply(Recovery.scala:33)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.persistence.Recovery$class.withCurrentPersistent(Recovery.scala:185)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.persistence.UntypedPersistentActor.withCurrentPersistent(Eventsourced.scala:428)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.persistence.Recovery$State$class.processPersistent(Recovery.scala:33)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.persistence.Recovery$$anon$1.processPersistent(Recovery.scala:104)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.persistence.Recovery$$anon$1.aroundReceive(Recovery.scala:110)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.persistence.Recovery$class.aroundReceive(Recovery.scala:265)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.persistence.UntypedPersistentActor.akka$persistence$Eventsourced$$super$aroundReceive(Eventsourced.scala:428)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.persistence.Eventsourced$$anon$1.aroundReceive(Eventsourced.scala:35)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.persistence.Eventsourced$class.aroundReceive(Eventsourced.scala:369)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.persistence.UntypedPersistentActor.aroundReceive(Eventsourced.scala:428)[140:com.typesafe.akka.persistence.experimental:2.3.14]
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)[135:com.typesafe.akka.actor:2.3.14]
at akka.actor.ActorCell.invoke(ActorCell.scala:487)[135:com.typesafe.akka.actor:2.3.14]
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238)[135:com.typesafe.akka.actor:2.3.14]
at akka.dispatch.Mailbox.run(Mailbox.scala:220)[135:com.typesafe.akka.actor:2.3.14]
at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397)[135:com.typesafe.akka.actor:2.3.14]
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)[132:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)[132:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)[132:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)[132:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]
2015-11-04 22:48:40,183 | WARN | lt-dispatcher-18 | OneForOneStrategy | 136 - com.typesafe.akka.slf4j - 2.3.14 | Unsupported modification APPEARED