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Posted to dev@qpid.apache.org by "Lorenz Quack (JIRA)" <ji...@apache.org> on 2017/06/01 10:10:04 UTC
[jira] [Updated] (QPID-7774) [JMS Client 0-x] [0-8..0-91]
MessageConsumer#receiveNoWait() always returns null after a successful
failover
[ https://issues.apache.org/jira/browse/QPID-7774?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lorenz Quack updated QPID-7774:
-------------------------------
Summary: [JMS Client 0-x] [0-8..0-91] MessageConsumer#receiveNoWait() always returns null after a successful failover (was: [Qpid JMS Client 0-x] [0-8..0-91] MessageConsumer#receiveNoWait() always returns null after a successful failover)
> [JMS Client 0-x] [0-8..0-91] MessageConsumer#receiveNoWait() always returns null after a successful failover
> ------------------------------------------------------------------------------------------------------------
>
> Key: QPID-7774
> URL: https://issues.apache.org/jira/browse/QPID-7774
> Project: Qpid
> Issue Type: Bug
> Components: Java Client
> Affects Versions: 0.22, 0.32, qpid-java-6.0.6, qpid-java-6.1.2
> Reporter: Keith Wall
> Assignee: Keith Wall
> Fix For: qpid-java-client-0-x-6.3.0, qpid-java-6.1.3
>
> Attachments: 0001-QPID-7774-Improve-locking-when-using-failover-latch.patch
>
>
> If the client fails over when AMQP 0-8..0-91 is in use and the application is using a synchronous message receiver calling #receiveNoWait(), the application will always receive null. The defect is longstanding. It goes back at least until 0.22. Other synchronous receive calls and asynchronous message listeners are unaffected. The 0-10 path is unaffected too.
> The problem is {{org.apache.qpid.client.AMQConnection#isFailingOver}} and org.apache.qpid.client.AMQProtocolHandler#startFailoverThread. The former assumes that the failover latch will be nullified after a successful failover but {{startFailoverThread}} does not organise for this.
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