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https://issues.apache.org/jira/browse/AMQ-4226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gary Tully resolved AMQ-4226.
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Resolution: Fixed
error now logged by the RAR if zero prefetch is in effect. Condition could be
by design if a rar consumer needs to be weaned for some reason, hence the use
of the log.
> Broker destination zero prefetch and RAR endpoint listener are incompatible
> b/c RAR is starved of messages - log an error to highlight
> --------------------------------------------------------------------------------------------------------------------------------------
>
> Key: AMQ-4226
> URL: https://issues.apache.org/jira/browse/AMQ-4226
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.7.0
> Environment: Resource adapter (RAR)
> Reporter: Gary Tully
> Assignee: Gary Tully
> Priority: Minor
> Fix For: 5.8.0
>
>
> A broker configured zero prefetch will starve the RAR of messages. The
> consumer is now aware of the zero prefetch and will log an error if it sees a
> prefetch value of zero.
> RAR is push only so it needs to have a prefetch > 0 for normal operation.
> Setting prefetch to zero broker size is a way of preventing dispatch if
> necessary.
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