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Review request for Ambari, Dmitro Lisnichenko, Jonathan Hurley, and Vitalyi Brodetskyi. Bugs: AMBARI-15348 https://issues.apache.org/jira/browse/AMBARI-15348 Repository: ambari Description ------- If user copied hotfixed ambari-server.jar to /usr/lib/ambari-server and didn't remove the hotfix, the upgrade will fails with error: Internal Exception: Exception [EclipseLink-7250] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.ValidationException Exception Description: [class org.apache.ambari.server.orm.entities.HostEntity] uses a non-entity [class org.apache.ambari.server.orm.entities.HostVersionEntity] as target entity in the relationship attribute [field hostVersionEntities]. at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.createPredeployFailedPersistenceException(EntityManagerSetupImpl.java:1954) at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:1945) at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.callPredeploy(JPAInitializer.java:98) at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactoryImpl(PersistenceProvider.java:96) ... 15 more Caused by: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.EntityManagerSetupException Exception Description: Predeployment of PersistenceUnit [ambari-server] failed. As a workaround, user needs to restore all the database and configuration, remove all the hotfix and run "ambari-server upgrade" again. Diffs ----- ambari-server/pom.xml 83424c2 ambari-server/src/main/package/deb/control/preinst eb94f95 ambari-server/src/main/package/rpm/preinstall.sh a8e781e ambari-server/src/main/python/ambari_server/serverClassPath.py d3ade3e ambari-server/src/main/python/ambari_server/serverUpgrade.py b51a623 ambari-server/src/main/python/ambari_server_main.py 8be3239 ambari-server/src/test/python/TestServerClassPath.py 7ec36da Diff: https://reviews.apache.org/r/44847/diff/ Testing ------- ---------------------------------------------------------------------- Ran 257 tests in 8.222s OK ---------------------------------------------------------------------- Total run:926 Total errors:0 Total failures:0 OK Thanks, Dmytro Sen