16:59:42.431 [pool-36-thread-1] ERROR o.o.b.p.t.provider.TopologyNodeState - Unexpected transaction failure in node DataObjectIdentifier[
  @ urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology
  ... network.topology.Topology[TopologyKey{topologyId=Uri{value=testtopo}}]
  ... topology.Node[NodeKey{nodeId=Uri{value=pcc://127.89.68.151}}]
]
org.opendaylight.mdsal.common.api.OptimisticLockFailedException: Optimistic lock failed.
	at org.opendaylight.mdsal.dom.store.inmemory.InMemoryDOMStoreThreePhaseCommitCohort.canCommit(InMemoryDOMStoreThreePhaseCommitCohort.java:74)
	at org.opendaylight.mdsal.dom.broker.CommitCoordinationTask.canCommitBlocking(CommitCoordinationTask.java:98)
	at org.opendaylight.mdsal.dom.broker.CommitCoordinationTask.call(CommitCoordinationTask.java:70)
	at org.opendaylight.mdsal.dom.broker.CommitCoordinationTask$WithTracker.call(CommitCoordinationTask.java:42)
	at org.opendaylight.mdsal.dom.broker.CommitCoordinationTask$WithTracker.call(CommitCoordinationTask.java:28)
	at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:128)
	at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:74)
	at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:80)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: org.opendaylight.yangtools.yang.data.tree.api.ConflictingModificationAppliedException: Node was deleted by other transaction.
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkTouchApplicable(AbstractNodeContainerModificationStrategy.java:393)
	at org.opendaylight.yangtools.yang.data.tree.impl.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:101)
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:441)
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkTouchApplicable(AbstractNodeContainerModificationStrategy.java:400)
	at org.opendaylight.yangtools.yang.data.tree.impl.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:101)
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:441)
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkTouchApplicable(AbstractNodeContainerModificationStrategy.java:400)
	at org.opendaylight.yangtools.yang.data.tree.impl.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:101)
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:441)
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkTouchApplicable(AbstractNodeContainerModificationStrategy.java:400)
	at org.opendaylight.yangtools.yang.data.tree.impl.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:101)
	at org.opendaylight.yangtools.yang.data.tree.impl.InMemoryDataTreeModification.validate(InMemoryDataTreeModification.java:615)
	at org.opendaylight.yangtools.yang.data.tree.impl.InMemoryDataTreeModification.lockedValidate(InMemoryDataTreeModification.java:625)
	at org.opendaylight.yangtools.yang.data.tree.impl.InMemoryDataTreeModification.validate(InMemoryDataTreeModification.java:603)
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractDataTreeTip.validate(AbstractDataTreeTip.java:33)
	at org.opendaylight.mdsal.dom.store.inmemory.InMemoryDOMDataStore.validate(InMemoryDOMDataStore.java:180)
	at org.opendaylight.mdsal.dom.store.inmemory.InMemoryDOMStoreThreePhaseCommitCohort.canCommit(InMemoryDOMStoreThreePhaseCommitCohort.java:67)
	... 10 common frames omitted
16:59:42.431 [pool-36-thread-1] ERROR o.o.b.p.t.p.AbstractTopologySessionListener - Failed to update internal state for session PCEPSessionImpl{channel=TestingChannel, localOpen=Open{deadTimer=30, keepalive=10, sessionId=0, tlvs=Tlvs{augmentation=[Tlvs1{stateful=Stateful{augmentation=[Stateful1{initiation=true}, Stateful1{triggeredInitialSync=true}]}}]}}, remoteOpen=Open{deadTimer=30, keepalive=10, sessionId=0, tlvs=Tlvs{augmentation=[Tlvs1{stateful=Stateful{augmentation=[Stateful1{initiation=true}, Stateful1{triggeredInitialSync=true}]}}]}}}, closing it
org.opendaylight.mdsal.common.api.OptimisticLockFailedException: Optimistic lock failed.
	at org.opendaylight.mdsal.dom.store.inmemory.InMemoryDOMStoreThreePhaseCommitCohort.canCommit(InMemoryDOMStoreThreePhaseCommitCohort.java:74)
	at org.opendaylight.mdsal.dom.broker.CommitCoordinationTask.canCommitBlocking(CommitCoordinationTask.java:98)
	at org.opendaylight.mdsal.dom.broker.CommitCoordinationTask.call(CommitCoordinationTask.java:70)
	at org.opendaylight.mdsal.dom.broker.CommitCoordinationTask$WithTracker.call(CommitCoordinationTask.java:42)
	at org.opendaylight.mdsal.dom.broker.CommitCoordinationTask$WithTracker.call(CommitCoordinationTask.java:28)
	at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:128)
	at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:74)
	at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:80)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: org.opendaylight.yangtools.yang.data.tree.api.ConflictingModificationAppliedException: Node was deleted by other transaction.
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkTouchApplicable(AbstractNodeContainerModificationStrategy.java:393)
	at org.opendaylight.yangtools.yang.data.tree.impl.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:101)
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:441)
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkTouchApplicable(AbstractNodeContainerModificationStrategy.java:400)
	at org.opendaylight.yangtools.yang.data.tree.impl.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:101)
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:441)
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkTouchApplicable(AbstractNodeContainerModificationStrategy.java:400)
	at org.opendaylight.yangtools.yang.data.tree.impl.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:101)
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:441)
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkTouchApplicable(AbstractNodeContainerModificationStrategy.java:400)
	at org.opendaylight.yangtools.yang.data.tree.impl.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:101)
	at org.opendaylight.yangtools.yang.data.tree.impl.InMemoryDataTreeModification.validate(InMemoryDataTreeModification.java:615)
	at org.opendaylight.yangtools.yang.data.tree.impl.InMemoryDataTreeModification.lockedValidate(InMemoryDataTreeModification.java:625)
	at org.opendaylight.yangtools.yang.data.tree.impl.InMemoryDataTreeModification.validate(InMemoryDataTreeModification.java:603)
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractDataTreeTip.validate(AbstractDataTreeTip.java:33)
	at org.opendaylight.mdsal.dom.store.inmemory.InMemoryDOMDataStore.validate(InMemoryDOMDataStore.java:180)
	at org.opendaylight.mdsal.dom.store.inmemory.InMemoryDOMStoreThreePhaseCommitCohort.canCommit(InMemoryDOMStoreThreePhaseCommitCohort.java:67)
	... 10 common frames omitted
16:59:42.432 [pool-36-thread-1] DEBUG o.o.b.p.t.provider.PCEPRequest - Request went from UNSENT to DONE
16:59:42.432 [pool-36-thread-1] DEBUG o.o.p.pcep.impl.PCEPSessionImpl - Session is already closed.