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Posted to issues@camel.apache.org by "Daniele Fognini (JIRA)" <ji...@apache.org> on 2017/02/21 16:19:44 UTC
[jira] [Updated] (CAMEL-10873) camel-sjms transacted routes
dead-lock when exceptions are thrown by asynchronous processors
[ https://issues.apache.org/jira/browse/CAMEL-10873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniele Fognini updated CAMEL-10873:
------------------------------------
Attachment: TransactedAsyncExceptionTest.java
> camel-sjms transacted routes dead-lock when exceptions are thrown by asynchronous processors
> --------------------------------------------------------------------------------------------
>
> Key: CAMEL-10873
> URL: https://issues.apache.org/jira/browse/CAMEL-10873
> Project: Camel
> Issue Type: Bug
> Components: camel-sjms
> Affects Versions: 2.18.2, 2.19.0
> Reporter: Daniele Fognini
> Attachments: TransactedAsyncExceptionTest.java
>
>
> SJMS Consumers attempt rollback of the JMS Session if an exception is thrown along the Camel route. The rollback is attempted where the exception occurs and not on the original synchronous pipeline.
> For example with ActiveMQ and the thread component (see attached unit test)
> {code:java}
> AtomicInteger counter = new AtomicInteger();
> from(destination + "?acknowledgementMode=SESSION_TRANSACTED&transacted=true")
> .threads()
> .process(exchange -> {
> if (counter.incrementAndGet() < TRANSACTION_REDELIVERY_COUNT) {
> throw new IllegalArgumentException();
> }
> })
> .to("mock:async.exception")
> {code}
> `Session.rollback()` must be called by the ActiveMQ Thread, but is attempted by the asynchronous Camel thread, resulting in a dead-lock:
> {noformat}
> "Camel (camel-1) thread #0 - Threads" Id=26 BLOCKED on java.lang.Object@4b9df8a owned by "ActiveMQ Session Task-1" Id=22
> org.apache.activemq.ActiveMQMessageConsumer.rollback(ActiveMQMessageConsumer.java:1212)
> org.apache.activemq.ActiveMQMessageConsumer$5.afterRollback(ActiveMQMessageConsumer.java:1091)
> org.apache.activemq.TransactionContext.afterRollback(TransactionContext.java:162)
> org.apache.activemq.TransactionContext.rollback(TransactionContext.java:287)
> org.apache.activemq.ActiveMQSession.rollback(ActiveMQSession.java:603)
> org.apache.camel.component.sjms.tx.SessionTransactionSynchronization.onFailure(SessionTransactionSynchronization.java:54)
> org.apache.camel.util.UnitOfWorkHelper.doneSynchronizations(UnitOfWorkHelper.java:101)
> org.apache.camel.impl.DefaultUnitOfWork.done(DefaultUnitOfWork.java:234)
> org.apache.camel.util.UnitOfWorkHelper.doneUow(UnitOfWorkHelper.java:65)
> org.apache.camel.processor.CamelInternalProcessor$UnitOfWorkProcessorAdvice.after(CamelInternalProcessor.java:675)
> org.apache.camel.processor.CamelInternalProcessor$UnitOfWorkProcessorAdvice.after(CamelInternalProcessor.java:630)
> org.apache.camel.processor.CamelInternalProcessor$InternalCallback.done(CamelInternalProcessor.java:247)
> org.apache.camel.processor.CamelInternalProcessor$InternalCallback.done(CamelInternalProcessor.java:258)
> org.apache.camel.processor.RedeliveryErrorHandler$2.done(RedeliveryErrorHandler.java:553)
> org.apache.camel.processor.Pipeline$1.done(Pipeline.java:147)
> org.apache.camel.processor.ThreadsProcessor$ProcessCall.run(ThreadsProcessor.java:87)
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> java.util.concurrent.FutureTask.run(FutureTask.java:266)
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> java.lang.Thread.run(Thread.java:745)
> "ActiveMQ Session Task-1" Id=22 WAITING on java.util.concurrent.CountDownLatch$Sync@6955cb39
> sun.misc.Unsafe.park(Native Method)
> java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
> java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:997)
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1304)
> java.util.concurrent.CountDownLatch.await(CountDownLatch.java:231)
> org.apache.camel.impl.DefaultAsyncProcessorAwaitManager.await(DefaultAsyncProcessorAwaitManager.java:75)
> org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:105)
> org.apache.camel.component.sjms.consumer.InOnlyMessageHandler.handleMessage(InOnlyMessageHandler.java:65)
> org.apache.camel.component.sjms.consumer.AbstractMessageHandler.onMessage(AbstractMessageHandler.java:89)
> org.apache.activemq.ActiveMQMessageConsumer.dispatch(ActiveMQMessageConsumer.java:1401)
> org.apache.activemq.ActiveMQSessionExecutor.dispatch(ActiveMQSessionExecutor.java:131)
> org.apache.activemq.ActiveMQSessionExecutor.iterate(ActiveMQSessionExecutor.java:202)
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:133)
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:48)
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> java.lang.Thread.run(Thread.java:745)
> {noformat}
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