[jboss-jira] [JBoss JIRA] Commented: (JBMESSAGING-1818) Race condition occurs when two durable subscribers listening to the same destination

[Tyronne Wickramarathne (JIRA)]

    [ https://jira.jboss.org/browse/JBMESSAGING-1818?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12563118#comment-12563118 ] 

Tyronne Wickramarathne commented on JBMESSAGING-1818:
-----------------------------------------------------

JBossRemoting (JBR) delivers messages by reference when both JBM server and the client MDB are in the same JVM. Therefore, this behaviour results two MDBs reading from the same buffer. To avoid this, you need to set "force_remote" attribute to true on the remoting configuration.

....
<attribute name="force_remote" isParam="true">true</attribute>
....

-Tyronne

> Race condition occurs when two durable subscribers listening to the same destination
> ------------------------------------------------------------------------------------
>
>                 Key: JBMESSAGING-1818
>                 URL: https://jira.jboss.org/browse/JBMESSAGING-1818
>             Project: JBoss Messaging
>          Issue Type: Bug
>          Components: Messaging Core
>    Affects Versions: 1.4.6.GA
>         Environment: JBoss-EAP-5.0.1 , JDK-1.6, JBossMessaging-1.4.6
>            Reporter: Tyronne Wickramarathne
>            Assignee: Tyronne Wickramarathne
>             Fix For: Unscheduled
>
>
> When two durable subscribers consume ByteMessages from the same topic, a race condition occurs. The same message gets shared between two subscribers. If one reads ahead than the other, the slower consumer won't receive the same message.

-- 
This message is automatically generated by JIRA.
-
For more information on JIRA, see: http://www.atlassian.com/software/jira