Nexus 2 to 3 upgrade fails with concurrency error in NuGet

2018-06-21 13:07:27,514-0400 ERROR [change-processing-12-thread-3]  admin com.google.common.eventbus.EventBus.nexus - Could not dispatch event ComponentCreatedEvent{metadata=AttachedEntityMetadata{schema=component, document=component#31:839{tags:[0],bucket:#27:20,format:nuget,last_updated:Thu Jun 21 13:07:24 EDT 2018,attributes:[1],group:null,name:Gaig.Annuity.Service.Customer,version:1.40.0-d,ci_name:gaig.annuity.service.customer} v1}, remoteNodeId=null} to subscriber com.sonatype.nexus.repository.nuget.internal.NugetHostedGalleryFacet$$EnhancerByGuice$$b6d631ae@2d995307 method [public void com.sonatype.nexus.repository.nuget.internal.NugetLocalGalleryFacetSupport.on(org.sonatype.nexus.repository.storage.ComponentCreatedEvent)]
org.sonatype.nexus.repository.storage.RetryDeniedException: Reached max retries: 8/8
	at org.sonatype.nexus.repository.storage.StorageTxImpl.allowRetry(StorageTxImpl.java:224)
	at sun.reflect.GeneratedMethodAccessor567.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.sonatype.nexus.common.stateguard.SimpleMethodInvocation.proceed(SimpleMethodInvocation.java:53)
	at org.sonatype.nexus.common.stateguard.StateGuardAspect$1.invoke(StateGuardAspect.java:69)
	at com.sun.proxy.$Proxy212.allowRetry(Unknown Source)
	at org.sonatype.nexus.transaction.TransactionalWrapper.proceedWithTransaction(TransactionalWrapper.java:81)
	at org.sonatype.nexus.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:54)
	at com.sonatype.nexus.repository.nuget.internal.NugetLocalGalleryFacetSupport.maintainAggregateInfo(NugetLocalGalleryFacetSupport.java:579)
	at com.sonatype.nexus.repository.nuget.internal.NugetLocalGalleryFacetSupport.on(NugetLocalGalleryFacetSupport.java:565)
	at org.sonatype.nexus.common.stateguard.MethodInvocationAction.run(MethodInvocationAction.java:39)
	at org.sonatype.nexus.common.stateguard.StateGuard$GuardImpl.run(StateGuard.java:270)
	at org.sonatype.nexus.common.stateguard.GuardedInterceptor.invoke(GuardedInterceptor.java:53)
	at sun.reflect.GeneratedMethodAccessor505.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:87)
	at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:72)
	at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:398)
	at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:67)
	at com.google.common.eventbus.Dispatcher$ImmediateDispatcher.dispatch(Dispatcher.java:186)
	at com.google.common.eventbus.EventBus.post(EventBus.java:212)
	at org.sonatype.nexus.internal.event.EventManagerImpl.post(EventManagerImpl.java:127)
	at org.sonatype.nexus.orient.entity.EntityHook.postEvents(EntityHook.java:272)
	at org.sonatype.nexus.orient.entity.EntityHook.flushEvents(EntityHook.java:248)
	at org.sonatype.nexus.orient.entity.EntityHook.onAfterTxCommit(EntityHook.java:169)
	at com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.commit(ODatabaseDocumentTx.java:2949)
	at com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.commit(ODatabaseDocumentTx.java:2870)
	at org.sonatype.nexus.repository.storage.StorageTxImpl.commit(StorageTxImpl.java:181)
	at sun.reflect.GeneratedMethodAccessor418.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.sonatype.nexus.common.stateguard.SimpleMethodInvocation.proceed(SimpleMethodInvocation.java:53)
	at org.sonatype.nexus.common.stateguard.MethodInvocationAction.run(MethodInvocationAction.java:39)
	at org.sonatype.nexus.common.stateguard.StateGuard$TransitionImpl.run(StateGuard.java:191)
	at org.sonatype.nexus.common.stateguard.TransitionsInterceptor.invoke(TransitionsInterceptor.java:56)
	at org.sonatype.nexus.common.stateguard.StateGuardAspect$1.invoke(StateGuardAspect.java:66)
	at com.sun.proxy.$Proxy212.commit(Unknown Source)
	at org.sonatype.nexus.transaction.TransactionalWrapper.proceedWithTransaction(TransactionalWrapper.java:67)
	at org.sonatype.nexus.transaction.Operations.transactional(Operations.java:200)
	at org.sonatype.nexus.transaction.Operations.call(Operations.java:146)
	at com.sonatype.nexus.migration.repository.migrators.RepositoryMigratorSupport.inStorageTx(RepositoryMigratorSupport.java:249)
	at com.sonatype.nexus.migration.repository.migrators.RepositoryMigratorSupport.recordMetadata(RepositoryMigratorSupport.java:193)
	at com.sonatype.nexus.migration.repository.migrators.RepositoryMigratorSupport.createOrUpdate(RepositoryMigratorSupport.java:166)
	at com.sonatype.nexus.migration.repository.migrators.RepositoryMigratorSupport.processChange(RepositoryMigratorSupport.java:146)
	at com.sonatype.nexus.migration.repository.RepositoryMigrator$processChange$1.call(Unknown Source)
	at com.sonatype.nexus.migration.repository.ProcessChangesStep$_submit_closure2.doCall(ProcessChangesStep.groovy:333)
	at com.sonatype.nexus.migration.repository.ProcessChangesStep$_submit_closure2.doCall(ProcessChangesStep.groovy)
	at sun.reflect.GeneratedMethodAccessor522.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
	at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022)
	at groovy.lang.Closure.call(Closure.java:414)
	at groovy.lang.Closure.call(Closure.java:408)
	at groovy.lang.Closure.run(Closure.java:495)
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: com.orientechnologies.orient.core.exception.OConcurrentModificationException: Cannot UPDATE the record #33:2473 because the version is not the latest. Probably you are updating an old record or it has been modified by another user (db=v3 your=v2)
	DB name="component"
	at com.orientechnologies.orient.core.conflict.OVersionRecordConflictStrategy.checkVersions(OVersionRecordConflictStrategy.java:56)
	at com.orientechnologies.orient.core.conflict.OVersionRecordConflictStrategy.onUpdate(OVersionRecordConflictStrategy.java:43)
	at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.checkAndIncrementVersion(OAbstractPaginatedStorage.java:4544)
	at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.doUpdateRecord(OAbstractPaginatedStorage.java:4021)
	at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.commitEntry(OAbstractPaginatedStorage.java:4606)
	at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.commit(OAbstractPaginatedStorage.java:1857)
	at com.orientechnologies.orient.core.tx.OTransactionOptimistic.doCommit(OTransactionOptimistic.java:541)
	at com.orientechnologies.orient.core.tx.OTransactionOptimistic.commit(OTransactionOptimistic.java:99)
	at com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.commit(ODatabaseDocumentTx.java:2908)
	at com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.commit(ODatabaseDocumentTx.java:2870)
	at org.sonatype.nexus.repository.storage.StorageTxImpl.commit(StorageTxImpl.java:181)
	at sun.reflect.GeneratedMethodAccessor418.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.sonatype.nexus.common.stateguard.SimpleMethodInvocation.proceed(SimpleMethodInvocation.java:53)
	at org.sonatype.nexus.common.stateguard.MethodInvocationAction.run(MethodInvocationAction.java:39)
	at org.sonatype.nexus.common.stateguard.StateGuard$TransitionImpl.run(StateGuard.java:191)
	at org.sonatype.nexus.common.stateguard.TransitionsInterceptor.invoke(TransitionsInterceptor.java:56)
	at org.sonatype.nexus.common.stateguard.StateGuardAspect$1.invoke(StateGuardAspect.java:66)
	at com.sun.proxy.$Proxy212.commit(Unknown Source)
	at org.sonatype.nexus.transaction.TransactionalWrapper.proceedWithTransaction(TransactionalWrapper.java:67)
	... 56 common frames omitted