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From "David Johle (JIRA)" <>
Subject [jira] [Updated] (AMQ-4223) Messages being distributed to exclusive consumers!
Date Thu, 06 Jun 2013 21:08:20 GMT


David Johle updated AMQ-4223:

    Priority: Major  (was: Minor)
> Messages being distributed to exclusive consumers!
> --------------------------------------------------
>                 Key: AMQ-4223
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.6.0, 5.7.0, 5.8.0
>         Environment: RHEL5, Java 1.6
>            Reporter: David Johle
> Now that AMQ-3664 is out of the way I thought I could turn on optimizeAcknowledge back
on as long as I gave it some decent timeOut & scheduledAckInterval values.
> Well, it turns out the behavior I was seeing still happens, and I think now it's clearer
that it is something else, just was partially masked by that other issue.
> My configuration is a "network of brokers" two brokers with a producer on each one, and
a consumer on each one.  The consumers are set up with exclusive=true as their part of my
application is an "aggregation" step.  I'm using the exclusive mode to ensure that only one
of them receives all the messages, and the other is essentially a standby/backup in case the
first one is offline.
> When I have optimizeAcknowlege enabled, I see a situation where it is distributing (fairly
equally, in fact) the messages to both of the consumers.  When I set that to false, all the
messages funnel into the currently active consumer as expected.
> I cannot find anything that says these are incompatible features, and cannot figure out
what it is that causes this behavior.

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