Michal Klimuk [http://community.jboss.org/people/misieq] created the discussion
"Problem terminating concurent executions that have active sub-processes [jBPM 4.3/4.4 + Oracle]" To view the discussion, visit: http://community.jboss.org/message/562698#562698 -------------------------------------------------------------- I have a process that contains a fork activity with two branches - one containing a sub-process and the other any type of node from which we can terminate the whole process directly. A simplified version for test purposes would be: <?xml version="1.0" encoding="UTF-8"?> <process name="p1" schemaLocation="http://jbpm.org/4.0/jpdl http://docs.jboss.org/jbpm/xsd/jpdl-4.0.xsd"; xmlns="http://jbpm.org/4.0/jpdl";> <start g="143,27,80,40" name="start"> <transition g="-54,-22" name="to fork1" to="fork1" /> </start> <fork g="143,117,48,48" name="fork1"> <transition g="-38,-22" name="to p2" to="p2" /> <transition g="34,-14" name="to state1" to="state1" /> </fork> <state g="199,214,108,52" name="state1"> <transition to="join1" /> <transition g="-11,-21" name="end" to="end2" /> </state> <sub-process g="18,227,92,52" name="p2" sub-process-key="p2"> <transition to="join1" /> </sub-process> <join g="141,334,48,48" name="join1"> <transition to="end" /> </join> <end-cancel g="405,217,92,102" name="end2" /> <end g="141,446,80,40" name="end" /> </process> When I run the process and try to signal node 'state1' to end the whole process I get a constraint violation : org.hibernate.exception.ConstraintViolationException: could not delete: org.jbpm.pvm.internal.model.ExecutionImpl#10002 at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:94) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2569) at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2725) at org.hibernate.action.EntityDeleteAction.execute(EntityDeleteAction.java:97) at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:172) at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321) at org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:64) at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:996) at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1141) at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102) at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:835) at org.jbpm.pvm.internal.hibernate.DbSessionImpl.findProcessInstanceByIdIgnoreSuspended(DbSessionImpl.java:211) at org.jbpm.pvm.internal.hibernate.DbSessionImpl.deleteProcessInstance(DbSessionImpl.java:251) at org.jbpm.pvm.internal.model.ExecutionImpl.end(ExecutionImpl.java:382) at org.jbpm.jpdl.internal.activity.EndActivity.execute(EndActivity.java:82) at org.jbpm.jpdl.internal.activity.EndActivity.execute(EndActivity.java:45) at org.jbpm.pvm.internal.model.op.ExecuteActivity.perform(ExecuteActivity.java:60) at org.jbpm.pvm.internal.model.ExecutionImpl.performAtomicOperationSync(ExecutionImpl.java:656) at org.jbpm.pvm.internal.model.ExecutionImpl.performAtomicOperation(ExecutionImpl.java:616) at org.jbpm.pvm.internal.model.ExecutionImpl.signal(ExecutionImpl.java:417) at org.jbpm.pvm.internal.cmd.SignalCmd.execute(SignalCmd.java:61) at org.jbpm.pvm.internal.cmd.SignalCmd.execute(SignalCmd.java:35) at org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42) at org.jbpm.pvm.internal.tx.SpringCommandCallback.doInTransaction(SpringCommandCallback.java:45) at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128) at org.jbpm.pvm.internal.tx.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:55) at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.executeInNewEnvironment(EnvironmentInterceptor.java:53) at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:40) at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55) at org.jbpm.pvm.internal.svc.ExecutionServiceImpl.signalExecutionById(ExecutionServiceImpl.java:88) at org.jbpm.test.SubprocessTest.testEndWithActiveSubprocesses(SubprocessTest.java:25) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.test.context.junit4.SpringTestMethod.invoke(SpringTestMethod.java:160) at org.springframework.test.context.junit4.SpringMethodRoadie.runTestMethod(SpringMethodRoadie.java:233) at org.springframework.test.context.junit4.SpringMethodRoadie$RunBeforesThenTestThenAfters.run(SpringMethodRoadie.java:333) at org.springframework.test.context.junit4.SpringMethodRoadie.runWithRepetitions(SpringMethodRoadie.java:217) at org.springframework.test.context.junit4.SpringMethodRoadie.runTest(SpringMethodRoadie.java:197) at org.springframework.test.context.junit4.SpringMethodRoadie.run(SpringMethodRoadie.java:143) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.invokeTestMethod(SpringJUnit4ClassRunner.java:160) at org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:51) at org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:44) at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:27) at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:37) at org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:97) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Caused by: java.sql.SQLException: ORA-02292: violation de contrainte (BDOOA.FK_EXEC_SUPEREXEC) d'intégrité - enregistrement fils existant at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288) at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:745) at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:216) at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:966) at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1170) at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3339) at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3423) at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2551) ... 54 more I investigated the problem and I found out that it is due to the fact that we never try to terminate an existing sub-process from within the ExecutionImpl.end() method. It causes a delete of the parent execution row although it is still referenced by SUPEREXEC_ column of the sub-process. I created a patch that works and that consists on adding the following code to ExecutionImpl.end(String state) (my code in the middle paragraph): // end all child executions // making a copy of the executions to prevent ConcurrentMoidificationException List<ExecutionImpl> executionsToEnd = new ArrayList<ExecutionImpl>(executions); for (ExecutionImpl child: executionsToEnd) { child.end(state); } // terminates the sub-process if it exists if(subProcessInstance != null) { // to avoid the return signal (see superProcessExecution.signal() in the end(String state) method) subProcessInstance.setSuperProcessExecution(null); subProcessInstance.end(state); } setState(state); I don't know if it is the right approach but it works pretty much fine. Do you think it's the right way to do it? I created a jira where I join the patch and a test module. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/562698#562698] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2034]
_______________________________________________ jboss-user mailing list [email protected] https://lists.jboss.org/mailman/listinfo/jboss-user
