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From "Fredrik Jonson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AMQ-2125) javax.jms.JMSException: Could not correlate acknowledgment with dispatched message thrown on failover
Date Thu, 19 Nov 2009 08:36:52 GMT

    [ https://issues.apache.org/activemq/browse/AMQ-2125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=55580#action_55580
] 

Fredrik Jonson commented on AMQ-2125:
-------------------------------------

In activemq 5.2 and probably 5.3 this message is logged at loglevel ERROR. It would perhaps
make sense to reduce it to loglevel WARN? From Gary's description it appears to be harmless
when using failover connections.

> javax.jms.JMSException: Could not correlate acknowledgment with dispatched message thrown
on failover
> -----------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-2125
>                 URL: https://issues.apache.org/activemq/browse/AMQ-2125
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.2.0
>         Environment: MacOS 10.5 and Solaris 10
>            Reporter: Team Hiro
>             Fix For: 5.4.0
>
>
> When failing over to a new broker we see this exception. Although the exception is thrown
no messages seem to be lost.
> This can be reproduced using the following unit test and this setup:
> 1. Create two activemq's using the same datasource.
> 2. Run the test
> 3. Kill the first active mq before the test completes (after you see the first Recieved
Message... in the system out)
> 4. See the exception thrown in the second activemq log
> import org.apache.activemq.ActiveMQConnectionFactory;
> import javax.jms.*;
> import static javax.jms.Session.AUTO_ACKNOWLEDGE;
> import static javax.jms.Session.SESSION_TRANSACTED;
> import junit.framework.TestCase;
> import java.util.concurrent.atomic.AtomicInteger;
> public class BrokerTest extends TestCase {
>     public void testFoo() throws Exception {
>         ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("failover:(tcp://localhost:61616,tcp://localhost:61617)");
>         Connection connection = connectionFactory.createConnection();
>         connection.start();
>         Session producerSession = connection.createSession(false, AUTO_ACKNOWLEDGE);
>         MessageProducer producer = producerSession.createProducer(producerSession.createQueue("testQueue"));
>         for (int i = 0; i < 100; i++) {
>             System.out.println("Sending messages");
>             producer.send(producerSession.createTextMessage("Hello"));
>         }
>         final AtomicInteger atomicInteger = new AtomicInteger(0);
>         final Session consumerSession = connection.createSession(true, SESSION_TRANSACTED);
>         MessageConsumer messageConsumer = consumerSession.createConsumer(consumerSession.createQueue("testQueue"));
>         messageConsumer.setMessageListener(new MessageListener() {
>             public void onMessage(Message message) {
>                 try {
>                     System.out.println("Received Message" + message);
>                     Thread.sleep(1000);
>                     atomicInteger.addAndGet(1);
>                     System.out.println(atomicInteger.get());
>                     consumerSession.commit();
>                 } catch (Exception e) {
>                     throw new RuntimeException("Oh dear", e);
>                 }
>             }
>         });
>         Thread.sleep(2 * 60 * 1000);
>         assertEquals(100, atomicInteger.get());
>     }
> }

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