TransactionAttributeType.NOT_SUPPORTED 方法花费挂起事务的事务时间

Question

我有一个方法可以执行繁重的操作（文件处理），它不需要事务但在一个事务中并产生超时。我没有重构代码或提高默认事务超时的选项。我试过在文件处理程序方法中使用

TransactionAttributeType.NOT_SUPPORTED

来暂时暂停事务但是它在暂停时一直在计算时间并不断给我超时。

这样的工作方式对吗？当交易暂停时，交易时间是否还在消耗？

我已经用同样的问题做了下面的例子近似。 代码：

@Slf4j
@Stateless
public class Foo1 {

    @Inject
    Foo2 foo2;

    @PersistenceContext
    EntityManager em;

    @TransactionTimeout(value= 10, unit = TimeUnit.SECONDS)
    public void saveWith10secondsTimeout() {
        log.info("Start Foo1");
        Foo entity = new entity();
        em.persist(entity);
        foo2.threadSleep15seconds();
        log.info("End Foo1");
    }
}

@Slf4j
@Stateless
@TransactionAttribute(value = TransactionAttributeType.NOT_SUPPORTED)
public class Foo2 {
    public void threadSleep15seconds() {
        log.info("Start Foo2");
        try {
            Thread.sleep(15 * 1000);
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
        log.info("End Foo2");
    }
}

控制器调用：

@Inject
Foo1 foo1;

@GET
@Path("/foo-not-supported")
@TransactionAttribute(TransactionAttributeType.NEVER)
public Response testNotSupported() {
    log.info("Start testNotSupported");
    foo1.saveWith10secondsTimeout();
    return Response.status(OK).build();
}

日志：

15:00:30,867 INFO  [com.FooController] (default task-1) Start testNotSupported
15:00:30,868 INFO  [com.Foo1] (default task-1) Start Foo1
15:00:30,883 INFO  [com.Foo2] (default task-1) Start Foo2
15:00:40,867 INFO  [com.arjuna.ats.arjuna] (Transaction Reaper) ARJUNA012117: TransactionReaper::check timeout for TX 0:ffff7f000101:-441cac6:64394e3c:382 in state  RUN
15:00:40,877 INFO  [org.hibernate.resource.transaction.backend.jta.internal.synchronization.SynchronizationCallbackCoordinatorTrackingImpl] (Transaction Reaper Worker 0) HHH000451: Transaction afterCompletion called by a background thread; delaying afterCompletion processing until the original thread can handle it. [status=4]
15:00:40,881 INFO  [com.arjuna.ats.arjuna] (Transaction Reaper Worker 0) ARJUNA012121: TransactionReaper::doCancellations worker Thread[Transaction Reaper Worker 0,5,main] successfully canceled TX 0:ffff7f000101:-441cac6:64394e3c:382
15:00:45,884 INFO  [com.Foo2] (default task-1) End Foo2
15:00:45,884 INFO  [com.Foo1] (default task-1) End Foo1
15:00:45,884 INFO  [com.arjuna.ats.arjuna] (default task-1) ARJUNA012077: Abort called on already aborted atomic action 0:ffff7f000101:-441cac6:64394e3c:382
15:00:45,887 ERROR [org.jboss.as.ejb3.invocation] (default task-1) WFLYEJB0034: EJB Invocation failed on component Foo1 for method public void com.Foo1.saveWith10secondsTimeout(): javax.ejb.EJBTransactionRolledbackException: javax.transaction.RollbackException: WFLYEJB0447: Transaction 'Local transaction (delegate=TransactionImple < ac, BasicAction: 0:ffff7f000101:-441cac6:64394e3c:382 status: ActionStatus.ABORTED >, owner=Local transaction context for provider JBoss JTA transaction provider)' was already rolled back