JBPM 5.4.0中的交易问题

Question

我们的应用程序使用JBPM处理工作流，但由于一些问题，我们遇到了很多交易问题，这使得我们的应用程序无法使用。这并不总是发生，我们无法找出究竟是什么原因造成的。我们试图同步调用方法，以便在任何时候只有一个线程可以工作，但这也没有帮助。当谈到与JTA和hibernate的交易时，有什么我们想念的吗？

将其部署为自己的容器，并且只能通过其上的一个平稳接口进行访问。

我们正在使用的jBPM 5.4.0 堆栈跟踪：

java.lang.RuntimeException: Could not commit transaction 
    at org.jbpm.task.service.TaskServiceSession.doOperationInTransaction(TaskServiceSession.java:1130) 
    at org.jbpm.task.service.TaskServiceSession.getEntity(TaskServiceSession.java:1069) 
    at org.jbpm.task.service.TaskServiceSession.getTask(TaskServiceSession.java:605) 
    at com.jpmc.rdt.captisflow.service.impl.CaptisLocalTaskService.getTask(CaptisLocalTaskService.java:153) 
    at org.jbpm.process.workitem.wsht.GenericHTWorkItemHandler$TaskCompletedHandler.handleCompletedTask(GenericHTWorkItemHandler.java:251) 
    at org.jbpm.process.workitem.wsht.GenericHTWorkItemHandler$TaskCompletedHandler.execute(GenericHTWorkItemHandler.java:234) 
    at com.jpmc.rdt.captisflow.service.impl.CaptisLocalTaskService$SimpleEventTransport.trigger(CaptisLocalTaskService.java:325) 
    at org.jbpm.task.event.MessagingTaskEventListener.triggerPayload(MessagingTaskEventListener.java:76) 
    at org.jbpm.task.event.MessagingTaskEventListener.handleEvent(MessagingTaskEventListener.java:92) 
    at org.jbpm.task.event.MessagingTaskEventListener.taskCompleted(MessagingTaskEventListener.java:109) 
    at org.jbpm.task.event.TaskEventSupport.fireTaskCompleted(TaskEventSupport.java:49) 
    at org.jbpm.task.service.TaskServiceSession.postTaskCompleteOperation(TaskServiceSession.java:569) 
    at org.jbpm.task.service.TaskServiceSession.taskOperation(TaskServiceSession.java:495) 
    at com.jpmc.rdt.captisflow.service.impl.CaptisLocalTaskService.complete(CaptisLocalTaskService.java:79) 
    at com.jpmc.rdt.captisflow.service.impl.WorkflowServiceImpl.completeTask(WorkflowServiceImpl.java:388) 
    at com.jpmc.rdt.captisflow.service.impl.WorkflowServiceImpl.process(WorkflowServiceImpl.java:143) 
    at com.jpmc.rdt.captisflow.controller.WorkflowController.process(WorkflowController.java:83) 
    at sun.reflect.GeneratedMethodAccessor93.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) 
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) 
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) 
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745) 
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:685) 
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) 
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:919) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:851) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:953) 
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:855) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) 
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:205) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) 
    at org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:219) 
    at org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:333) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) 
    at org.apache.catalina.valves.StuckThreadDetectionValve.invoke(StuckThreadDetectionValve.java:193) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) 
    at org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:197) 
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589) 
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1822) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) 
    at java.lang.Thread.run(Thread.java:662) 
Caused by: java.lang.RuntimeException: Unable to rollback transaction 
    at org.jbpm.task.service.persistence.TaskLocalTransactionManager.rollback(TaskLocalTransactionManager.java:77) 
    at org.jbpm.task.service.persistence.TaskPersistenceManager.endTransaction(TaskPersistenceManager.java:110) 
    at org.jbpm.task.service.TaskServiceSession.doOperationInTransaction(TaskServiceSession.java:1118) 
    ... 50 more 
Caused by: java.lang.IllegalStateException: Transaction not active 
    at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:101) 
    at org.jbpm.task.service.persistence.TaskLocalTransactionManager.rollback(TaskLocalTransactionManager.java:70) 
    ... 52 more 

Answer 1

那么这一切都取决于你与框架做什么，例如：com.jpmc.rdt.captisflow.service.impl。 WorkflowServiceImpl.completeTask（WorkflowServiceImpl.java:388）。那是干什么的？我想你可能正在混淆与任务服务的交互方式。你确定没有两个方法同时在任务顶部调用一个动作吗？ 当您说异常使应用程序无法使用时，为什么？你是否将这些例外传播给用户？大多数情况下，如果出现并发问题，一个操作会成功，其他（多个）操作将失败，并推动您重试所有失败的操作。