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From "Vui Nguyen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AMQ-1509) Duplicate topic messages received with network of brokers and selectors
Date Wed, 16 Jan 2008 19:54:43 GMT

    [ https://issues.apache.org/activemq/browse/AMQ-1509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=41035#action_41035
] 

Vui Nguyen commented on AMQ-1509:
---------------------------------

Hello Rob. I have been assigned to fix this bug for a version of activemq at work. Since we
need this fix fairly soon and it would be a shame to have to reinvent the wheel, I'd really
appreciate it if you could share your solution to this bug. I'm actually working on this task
for Howard Orner, who submitted the previous comments. Thanks.

> Duplicate topic messages received with network of brokers and selectors
> -----------------------------------------------------------------------
>
>                 Key: AMQ-1509
>                 URL: https://issues.apache.org/activemq/browse/AMQ-1509
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker, Transport
>    Affects Versions: 4.1.1
>            Reporter: Howard Orner
>            Assignee: Rob Davies
>             Fix For: 5.1.0
>
>
> If you create a network of two brokers, A and B, one publisher publishing to A, and n
(where n is > 1) receivers with selectors, each receiver recieves n messages for every
1 message sent.  The key here is to have a selector.   It would appear that the conduitSubscriptions
flag does not work when using selectors.  The conduit does not properly reconcile consumers
if they have selectors.  A suggested soltuion would be that ather than process each selector
independantly, each selector should be or'ed together and if any selector results in true
then a single message should be sent to the other broker.
> In doing research, it would appear that this problem was introduced with bug fix AMQ-810.
 Another user reported it via email back to the assignee of AMQ-810 and a short dialog transpired.
 See http://www.mail-archive.com/activemq-users@geronimo.apache.org/msg05198.html.  

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