AlexanderKgr commented on issue #3826: Unsafe Field Accessor with newer mysql-connector-java package URL: https://github.com/apache/cloudstack/issues/3826#issuecomment-599894168 > validated on CentOS 7 for cloudstack 4.10 and 4.12, during initial start of cloudstack-management, it fail at the database upgrade scripts with following error: > > ``` > 2020-01-22 16:14:52,643 DEBUG [c.c.u.d.T.Transaction] (localhost-startStop-1:null) (logid:) Rolling back the transaction: Time = 2903 Name = Upgrade; called by -TransactionLegacy.rollback:889-TransactionLegacy.removeUpTo:832-TransactionLegacy.close:656-TransactionContextInterceptor.invoke:36-ReflectiveMethodInvocation.proceed:168-ExposeInvocationInterceptor.invoke:92-ReflectiveMethodInvocation.proceed:179-JdkDynamicAopProxy.invoke:213-$Proxy23.persist:-1-DatabaseUpgradeChecker.upgrade:471-DatabaseUpgradeChecker.check:548-CloudStackExtendedLifeCycle.checkIntegrity:65 > 2020-01-22 16:14:52,658 ERROR [c.c.u.DatabaseUpgradeChecker] (localhost-startStop-1:null) (logid:) Unable to upgrade the database > com.cloud.utils.exception.CloudRuntimeException: Problem with getting the ec attribute > at com.cloud.utils.db.GenericDaoBase.persist(GenericDaoBase.java:1430) > ``` > > Rollback to mysql-connector-java-5.1.47 worked fine. which is the procedure to rollback? i am completely new to cloudstack and yesterday installed and faced this issue
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