ElanUtils...Error writing to datastore...OptimisticLockFailedException...InterfaceRemoveWorkerOnElanInterface

{{2017-10-30 03:00:49,072 | ERROR | nPool-1-worker-0 | ElanUtils                        | 341 - org.opendaylight.netvirt.elanmanager-impl - 0.4.3.SNAPSHOT | Error writing to datastore {}
java.util.concurrent.ExecutionException: OptimisticLockFailedException{message=Optimistic lock failed., errorList=[RpcError [message=Optimistic lock failed., severity=ERROR, errorType=APPLICATION, tag=resource-denied, applicationTag=null, info=null, cause=org.opendaylight.yangtools.yang.data.api.schema.tree.ConflictingModificationAppliedException: Node was deleted by other transaction.]]}
	at org.opendaylight.yangtools.util.concurrent.MappingCheckedFuture.wrapInExecutionException(MappingCheckedFuture.java:64)[42:org.opendaylight.yangtools.util:1.1.3.SNAPSHOT]
	at org.opendaylight.yangtools.util.concurrent.MappingCheckedFuture.get(MappingCheckedFuture.java:77)[42:org.opendaylight.yangtools.util:1.1.3.SNAPSHOT]
	at org.opendaylight.netvirt.elan.utils.ElanUtils.waitForTransactionToComplete(ElanUtils.java:1446)[341:org.opendaylight.netvirt.elanmanager-impl:0.4.3.SNAPSHOT]
	at org.opendaylight.netvirt.elan.internal.ElanInterfaceManager.removeEntriesForElanInterface(ElanInterfaceManager.java:441)[341:org.opendaylight.netvirt.elanmanager-impl:0.4.3.SNAPSHOT]
	at org.opendaylight.netvirt.elan.internal.InterfaceRemoveWorkerOnElanInterface.call(InterfaceRemoveWorkerOnElanInterface.java:55)[341:org.opendaylight.netvirt.elanmanager-impl:0.4.3.SNAPSHOT]
	at org.opendaylight.netvirt.elan.internal.InterfaceRemoveWorkerOnElanInterface.call(InterfaceRemoveWorkerOnElanInterface.java:21)[341:org.opendaylight.netvirt.elanmanager-impl:0.4.3.SNAPSHOT]
	at org.opendaylight.genius.datastoreutils.DataStoreJobCoordinator$MainTask.run(DataStoreJobCoordinator.java:285)[292:org.opendaylight.genius.mdsalutil-api:0.2.3.SNAPSHOT]}}