IdStory Identity Manager

In my environment I have IdM database on a different server than the CzechIdM application. The network connection between those two servers was unavailable for a brief moment during a reconciliation of org. structure (tree nodes) at night.
The LRT of the sync. failed with Exception:

org.springframework.transaction.TransactionSystemException: Could not roll back JPA transaction; nested exception is org.hibernate.TransactionException: Unable to rollback against JDBC Connection
    at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:563)
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:838)
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:812)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.completeTransactionAfterThrowing(TransactionAspectSupport.java:552)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:299)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
    at eu.bcvsolutions.idm.acc.service.impl.DefaultSysSyncLogService$$EnhancerBySpringCGLIB$$70dc3c1e.save(<generated>)
    at eu.bcvsolutions.idm.acc.service.impl.TreeSynchronizationExecutor.process(TreeSynchronizationExecutor.java:173)
    at eu.bcvsolutions.idm.acc.service.impl.DefaultSynchronizationService.startSynchronization(DefaultSynchronizationService.java:189)
    at eu.bcvsolutions.idm.acc.service.impl.DefaultSynchronizationService$$FastClassBySpringCGLIB$$66d7ee75.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:684)
    at eu.bcvsolutions.idm.acc.service.impl.DefaultSynchronizationService$$EnhancerBySpringCGLIB$$c1df17d2.startSynchronization(<generated>)
    at eu.bcvsolutions.idm.acc.scheduler.task.impl.SynchronizationSchedulableTaskExecutor.process(SynchronizationSchedulableTaskExecutor.java:71)
    at eu.bcvsolutions.idm.acc.scheduler.task.impl.SynchronizationSchedulableTaskExecutor.process(SynchronizationSchedulableTaskExecutor.java:31)
    at eu.bcvsolutions.idm.core.scheduler.api.service.AbstractLongRunningTaskExecutor.call(AbstractLongRunningTaskExecutor.java:265)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at eu.bcvsolutions.idm.core.config.DelegatingTransactionContextRunnable.run(DelegatingTransactionContextRunnable.java:39)
    at org.springframework.security.concurrent.DelegatingSecurityContextRunnable.run(DelegatingSecurityContextRunnable.java:84)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: org.hibernate.TransactionException: Unable to rollback against JDBC Connection
    at org.hibernate.resource.jdbc.internal.AbstractLogicalConnectionImplementor.rollback(AbstractLogicalConnectionImplementor.java:122)
    at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.rollback(JdbcResourceLocalTransactionCoordinatorImpl.java:294)
    at org.hibernate.engine.transaction.internal.TransactionImpl.rollback(TransactionImpl.java:145)
    at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:559)
    ... 23 more
Caused by: java.sql.SQLException: Connection is closed
    at com.zaxxer.hikari.pool.ProxyConnection$ClosedConnection.lambda$getClosedConnection$0(ProxyConnection.java:489)
    at com.sun.proxy.$Proxy117.rollback(Unknown Source)
    at com.zaxxer.hikari.pool.ProxyConnection.rollback(ProxyConnection.java:370)
    at com.zaxxer.hikari.pool.HikariProxyConnection.rollback(HikariProxyConnection.java)
    at org.hibernate.resource.jdbc.internal.AbstractLogicalConnectionImplementor.rollback(AbstractLogicalConnectionImplementor.java:116)
    ... 26 more

However the sync. is still shown as "running", but it's not processing any items anymore.

The problem of this situation is that the sync. won't start the next day as it should because IdM "thinks" it's still running.

I've managed to simulate the situation in my local environment when I started the sync. and restarted the postgresql service while it was running and processing items.

I think it would be helpful if the sync correctly failed when it's LRT fails. But I don't know whether it's possible since the fail is due to DB connectivity problem.

This happened twice to me, once on 10.6 and once on 10.8. And I did the local simulation with 11.1.