[jira] [Created] (AMBARI-14674) Cannot Finalize Downgrade Due To Detached ClusterEntity

["Jonathan Hurley (JIRA)" <ji...@apache.org>]

Jonathan Hurley created AMBARI-14674:
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             Summary: Cannot Finalize Downgrade Due To Detached ClusterEntity
                 Key: AMBARI-14674
                 URL: https://issues.apache.org/jira/browse/AMBARI-14674
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
    Affects Versions: 2.2.1
            Reporter: Jonathan Hurley
            Assignee: Jonathan Hurley
            Priority: Critical
             Fix For: 2.2.1


RU HDP 2.2 to 2.4 downgrade results in:

{code}
java.lang.IllegalArgumentException: Can not refresh not managed object: org.apache.ambari.server.orm.entities.ClusterEntity@18126.
	at org.eclipse.persistence.internal.jpa.EntityManagerImpl.refresh(EntityManagerImpl.java:1024)
	at org.eclipse.persistence.internal.jpa.EntityManagerImpl.refresh(EntityManagerImpl.java:929)
	at org.apache.ambari.server.orm.dao.ClusterDAO.refresh(ClusterDAO.java:309)
	at org.apache.ambari.server.orm.AmbariJpaLocalTxnInterceptor.invoke(AmbariJpaLocalTxnInterceptor.java:68)
	at org.apache.ambari.server.state.cluster.ClusterImpl.removeConfigurations(ClusterImpl.java:3216)
	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)
{code}

It seems like what's happening is that the ClusterEntity is being retrieved outside of a JPA session. Although the ClusterDAO creates the session, it also ends it, leaving the Entity detached. We should instead be refreshing this Entity within the bounds of the Transaction.



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