Miroslav Novak created ARTEMIS-946:
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Summary: 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: 1.5.2, 2.0.0
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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