ElanUtils: ModifiedNodeDoesNotExistException: Node /(urn:opendaylight:netvirt:elan?revision=2015-06-02)elan-forwarding-tables/mac-table/mac-table[{(urn:opendaylight:netvirt:elan?revision=2015-06-02)elan-instance-name=19d8c33d-a74a-4753-82db-3ce7567409dc}]

Various exceptions related to removing mac entries. this is the first exception and it is followed by many others. They are captured in the attached log.

2016-08-29 08:14:48,151 | DEBUG | nPool-1-worker-5 | ElanInterfaceManager | 356 - org.opendaylight.netvirt.elanmanager-impl - 0.4.0.SNAPSHOT | removing the mac-entry:f4:00:00:0f:00:01 present on elanInterface:f478fd89-8cfc-41a2-8e2d-ee4874bdc86a
2016-08-29 08:14:48,151 | DEBUG | nPool-1-worker-5 | ElanUtils | 356 - org.opendaylight.netvirt.elanmanager-impl - 0.4.0.SNAPSHOT | Acquired lock for mac : f4:00:00:0f:00:01. Proceeding with remove operation.
2016-08-29 08:14:48,152 | WARN | lt-dispatcher-79 | ShardDataTree | 217 - org.opendaylight.controller.sal-distributed-datastore - 1.5.0.SNAPSHOT | member-1-shard-default-operational: Store Tx member-1-datastore-operational-fe-0-txn-377: Data validation failed for path /(urn:opendaylight:netvirt:elan?revision=2015-06-02)elan-forwarding-tables/mac-table/mac-table[

{(urn:opendaylight:netvirt:elan?revision=2015-06-02)elan-instance-name=19d8c33d-a74a-4753-82db-3ce7567409dc}

].
org.opendaylight.yangtools.yang.data.api.schema.tree.ModifiedNodeDoesNotExistException: Node /(urn:opendaylight:netvirt:elan?revision=2015-06-02)elan-forwarding-tables/mac-table/mac-table[

{(urn:opendaylight:netvirt:elan?revision=2015-06-02)elan-instance-name=19d8c33d-a74a-4753-82db-3ce7567409dc}

] does not exist. Cannot apply modification to its children.
at org.opendaylight.yangtools.yang.data.impl.schema.tree.AbstractNodeContainerModificationStrategy.checkTouchApplicable(AbstractNodeContainerModificationStrategy.java:281)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.impl.schema.tree.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:125)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.impl.schema.tree.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:305)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.impl.schema.tree.AbstractNodeContainerModificationStrategy.checkTouchApplicable(AbstractNodeContainerModificationStrategy.java:288)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.impl.schema.tree.MinMaxElementsValidation.checkTouchApplicable(MinMaxElementsValidation.java:106)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.impl.schema.tree.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:125)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.impl.schema.tree.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:305)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.impl.schema.tree.AbstractNodeContainerModificationStrategy.checkTouchApplicable(AbstractNodeContainerModificationStrategy.java:288)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.impl.schema.tree.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:125)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.impl.schema.tree.StructuralContainerModificationStrategy.checkApplicable(StructuralContainerModificationStrategy.java:99)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.impl.schema.tree.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:305)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.impl.schema.tree.AbstractNodeContainerModificationStrategy.checkTouchApplicable(AbstractNodeContainerModificationStrategy.java:288)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.impl.schema.tree.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:125)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.impl.schema.tree.RootModificationApplyOperation.checkApplicable(RootModificationApplyOperation.java:72)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.yangtools.yang.data.impl.schema.tree.AbstractDataTreeTip.validate(AbstractDataTreeTip.java:37)[120:org.opendaylight.yangtools.yang-data-impl:1.1.0.SNAPSHOT]
at org.opendaylight.controller.cluster.datastore.ShardDataTree.processNextTransaction(ShardDataTree.java:523)[217:org.opendaylight.controller.sal-distributed-datastore:1.5.0.SNAPSHOT]
at org.opendaylight.controller.cluster.datastore.ShardDataTree.startCanCommit(ShardDataTree.java:559)[217:org.opendaylight.controller.sal-distributed-datastore:1.5.0.SNAPSHOT]
at org.opendaylight.controller.cluster.datastore.SimpleShardDataTreeCohort.canCommit(SimpleShardDataTreeCohort.java:81)[217:org.opendaylight.controller.sal-distributed-datastore:1.5.0.SNAPSHOT]
at org.opendaylight.controller.cluster.datastore.CohortEntry.canCommit(CohortEntry.java:98)[217:org.opendaylight.controller.sal-distributed-datastore:1.5.0.SNAPSHOT]
at org.opendaylight.controller.cluster.datastore.ShardCommitCoordinator.handleCanCommit(ShardCommitCoordinator.java:237)[217:org.opendaylight.controller.sal-distributed-datastore:1.5.0.SNAPSHOT]
at org.opendaylight.controller.cluster.datastore.ShardCommitCoordinator.handleReadyLocalTransaction(ShardCommitCoordinator.java:201)[217:org.opendaylight.controller.sal-distributed-datastore:1.5.0.SNAPSHOT]
at org.opendaylight.controller.cluster.datastore.Shard.handleReadyLocalTransaction(Shard.java:435)[217:org.opendaylight.controller.sal-distributed-datastore:1.5.0.SNAPSHOT]
at org.opendaylight.controller.cluster.datastore.Shard.handleNonRaftCommand(Shard.java:241)[217:org.opendaylight.controller.sal-distributed-datastore:1.5.0.SNAPSHOT]
at org.opendaylight.controller.cluster.raft.RaftActor.handleCommand(RaftActor.java:299)[212:org.opendaylight.controller.sal-akka-raft:1.5.0.SNAPSHOT]
at org.opendaylight.controller.cluster.common.actor.AbstractUntypedPersistentActor.onReceiveCommand(AbstractUntypedPersistentActor.java:29)[211:org.opendaylight.controller.sal-clustering-commons:1.5.0.SNAPSHOT]
at akka.persistence.UntypedPersistentActor.onReceive(PersistentActor.scala:170)[205:com.typesafe.akka.persistence:2.4.7]
at org.opendaylight.controller.cluster.common.actor.MeteringBehavior.apply(MeteringBehavior.java:97)[211:org.opendaylight.controller.sal-clustering-commons:1.5.0.SNAPSHOT]
at akka.actor.ActorCell$$anonfun$become$1.applyOrElse(ActorCell.scala:544)[199:com.typesafe.akka.actor:2.4.7]
at akka.actor.Actor$class.aroundReceive(Actor.scala:484)[199:com.typesafe.akka.actor:2.4.7]
at akka.persistence.UntypedPersistentActor.akka$persistence$Eventsourced$$super$aroundReceive(PersistentActor.scala:168)[205:com.typesafe.akka.persistence:2.4.7]
at akka.persistence.Eventsourced$$anon$1.stateReceive(Eventsourced.scala:633)[205:com.typesafe.akka.persistence:2.4.7]
at akka.persistence.Eventsourced$class.aroundReceive(Eventsourced.scala:179)[205:com.typesafe.akka.persistence:2.4.7]
at akka.persistence.UntypedPersistentActor.aroundReceive(PersistentActor.scala:168)[205:com.typesafe.akka.persistence:2.4.7]
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526)[199:com.typesafe.akka.actor:2.4.7]
at akka.actor.ActorCell.invoke(ActorCell.scala:495)[199:com.typesafe.akka.actor:2.4.7]
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257)[199:com.typesafe.akka.actor:2.4.7]
at akka.dispatch.Mailbox.run(Mailbox.scala:224)[199:com.typesafe.akka.actor:2.4.7]
at akka.dispatch.Mailbox.exec(Mailbox.scala:234)[199:com.typesafe.akka.actor:2.4.7]
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)[195:org.scala-lang.scala-library:2.11.8.v20160304-115712-1706a37eb8]
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)[195:org.scala-lang.scala-library:2.11.8.v20160304-115712-1706a37eb8]
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)[195:org.scala-lang.scala-library:2.11.8.v20160304-115712-1706a37eb8]
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)[195:org.scala-lang.scala-library:2.11.8.v20160304-115712-1706a37eb8]