[AMBARI-14405] RU: Finalize Downgrade failed

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.2.1
• Component/s: ambari-server
• Assignee: Nate Cole
• Reporter: Nate Cole
• Created: 16/Dec/15 20:51
• Updated: 12/Jan/16 19:33
• Resolved: 16/Dec/15 21:46

Description

Occasionally, the following exception occurs while on the Finalize Downgrade step:

Local Exception Stack: 
Exception [EclipseLink-6004] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.QueryException
Exception Description: The object [org.apache.ambari.server.orm.entities.ClusterConfigEntity@3646b3a8], of class [class org.apache.ambari.server.orm.entities.ClusterConfigEntity], with identity hashcode (System.identityHashCode()) [364,075,546], 
is not from this UnitOfWork object space, but the parent session's.  The object was never registered in this UnitOfWork, 
but read from the parent session and related to an object registered in the UnitOfWork.  Ensure that you are correctly
registering your objects.  If you are still having problems, you can use the UnitOfWork.validateObjectSpace() method to 
help debug where the error occurred.  For more information, see the manual or FAQ.
	at org.eclipse.persistence.exceptions.QueryException.backupCloneIsOriginalFromParent(QueryException.java:298)
	at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.getBackupClone(UnitOfWorkImpl.java:1995)
	at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerExistingObject(UnitOfWorkImpl.java:3976)
	at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerExistingObject(UnitOfWorkImpl.java:3894)
	at org.eclipse.persistence.mappings.CollectionMapping.buildElementUnitOfWorkClone(CollectionMapping.java:308)
	at org.eclipse.persistence.mappings.CollectionMapping.buildElementClone(CollectionMapping.java:321)
	at org.eclipse.persistence.internal.queries.ContainerPolicy.addNextValueFromIteratorInto(ContainerPolicy.java:217)
	at org.eclipse.persistence.mappings.CollectionMapping.buildCloneForPartObject(CollectionMapping.java:223)
	at org.eclipse.persistence.internal.indirection.UnitOfWorkQueryValueHolder.buildCloneFor(UnitOfWorkQueryValueHolder.java:60)
	at org.eclipse.persistence.internal.indirection.UnitOfWorkValueHolder.instantiateImpl(UnitOfWorkValueHolder.java:173)
	at org.eclipse.persistence.internal.indirection.UnitOfWorkValueHolder.instantiate(UnitOfWorkValueHolder.java:234)
	at org.eclipse.persistence.internal.indirection.DatabaseValueHolder.getValue(DatabaseValueHolder.java:89)
	at org.eclipse.persistence.indirection.IndirectList.buildDelegate(IndirectList.java:252)
	at org.eclipse.persistence.indirection.IndirectList.getDelegate(IndirectList.java:423)
	at org.eclipse.persistence.indirection.IndirectList.size(IndirectList.java:761)
	at org.eclipse.persistence.internal.queries.CollectionContainerPolicy.sizeFor(CollectionContainerPolicy.java:177)
	at org.eclipse.persistence.mappings.CollectionMapping.mergeIntoObject(CollectionMapping.java:1566)
	at org.eclipse.persistence.internal.descriptors.ObjectBuilder.mergeIntoObject(ObjectBuilder.java:4132)
	at org.eclipse.persistence.internal.sessions.MergeManager.mergeChangesOfCloneIntoWorkingCopy(MergeManager.java:594)
	at org.eclipse.persistence.internal.sessions.MergeManager.mergeChanges(MergeManager.java:313)
	at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.mergeCloneWithReferences(UnitOfWorkImpl.java:3521)
	at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.mergeCloneWithReferences(RepeatableWriteUnitOfWork.java:384)
	at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.mergeCloneWithReferences(UnitOfWorkImpl.java:3481)
	at org.eclipse.persistence.internal.jpa.EntityManagerImpl.mergeInternal(EntityManagerImpl.java:542)
	at org.eclipse.persistence.internal.jpa.EntityManagerImpl.merge(EntityManagerImpl.java:519)
	at org.apache.ambari.server.orm.dao.ClusterDAO.merge(ClusterDAO.java:338)
	at org.apache.ambari.server.orm.AmbariJpaLocalTxnInterceptor.invoke(AmbariJpaLocalTxnInterceptor.java:60)
	at org.apache.ambari.server.orm.dao.ClusterDAO.merge(ClusterDAO.java:320)
	at org.apache.ambari.server.state.cluster.ClusterImpl.removeAllConfigsForStack(ClusterImpl.java:3088)
	at org.apache.ambari.server.orm.AmbariJpaLocalTxnInterceptor.invoke(AmbariJpaLocalTxnInterceptor.java:68)
	at org.apache.ambari.server.state.cluster.ClusterImpl.removeConfigurations(ClusterImpl.java:3121)
	at org.apache.ambari.server.serveraction.upgrades.FinalizeUpgradeAction.finalizeDowngrade(FinalizeUpgradeAction.java:314)
	at org.apache.ambari.server.serveraction.upgrades.FinalizeUpgradeAction.execute(FinalizeUpgradeAction.java:116)
	at org.apache.ambari.server.serveraction.ServerActionExecutor$Worker.execute(ServerActionExecutor.java:537)
	at org.apache.ambari.server.serveraction.ServerActionExecutor$Worker.run(ServerActionExecutor.java:474)
	at java.lang.Thread.run(Thread.java:745)

Issue Links

• relates to: AMBARI-14637 Downgrade failed with error Failed to merge entity during Save cluster state
• links to: Review Board