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https://issues.apache.org/activemq/browse/AMQ-1866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=44438#action_44438
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Hiram Chirino commented on AMQ-1866:
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test case AMQ1866.java has been added to trunk. Currently failing it show a
test case the works for the default prefetch but which fails for small
prefetches.
> Using small queue prefetch sizes cause all consumers to run as fast as the
> slowest consumer.
> --------------------------------------------------------------------------------------------
>
> Key: AMQ-1866
> URL: https://issues.apache.org/activemq/browse/AMQ-1866
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.1.0
> Reporter: Hiram Chirino
> Assignee: Hiram Chirino
>
> If you have a JMS producer sending messages to multiple consumers and you
> have the cacheLevel set to 3 or higher, eventually all consumers will run as
> slow as the slowest consumer.
> In the attached projects the SA sends messages to a MockOptimizer (JMS
> consumer) that has two threads. One sleeps for one second and the other
> sleeps for ten. Initially the thread sleeping for 1 second will consume most
> of the messages, but towards the end it will start to consume messages every
> ten seconds as well.
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