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From "Giovanni Toffetti (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMQ-3582) CLONE - Duplicate topic messages received with network of brokers and selectors
Date Wed, 09 Nov 2011 12:00:53 GMT
CLONE - Duplicate topic messages received with network of brokers and selectors
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                 Key: AMQ-3582
                 URL: https://issues.apache.org/jira/browse/AMQ-3582
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker, Transport
    Affects Versions: 4.1.1
            Reporter: Giovanni Toffetti
            Assignee: Rob Davies
             Fix For: 5.3.0
         Attachments: ActiveMQActor.java

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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