[jira] [Closed] (ARTEMIS-946) CLONE - Consumers killed as slow even if overall consuming rate is above threshold

["Miroslav Novak (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARTEMIS-946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Miroslav Novak closed ARTEMIS-946.
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    Resolution: Fixed

Just tried If I can move jira - not possible :-( Closing.

> CLONE - Consumers killed as slow even if overall consuming rate is above threshold
> ----------------------------------------------------------------------------------
>
>                 Key: ARTEMIS-946
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-946
>             Project: ActiveMQ Artemis
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 1.5.1
>            Reporter: Miroslav Novak
>            Assignee: clebert suconic
>             Fix For: 2.0.0, 1.5.2
>
>
> We have one queue. Imagine messages are produced at 2 msgs/s. There are three consumers and slow consumer limit is 1 msgs/s. What happens is that all three consumers get killed as slow, even though it is impossible for any of them to be fast, since messages are distributed equally between the consumers (round-robin).
> This has real consumer impact in a situation when producer rate is usually high (so it requires multiple consumers working in parallel), but may occasionally drop close to consumer-threshold. In this case, broker disconnects all consumers who then have to reconnect and message processing is delayed for the time of the reconnecting.



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