Gary Tully created ARTEMIS-4517:
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Summary: rollback causes loss of message order if concurrent
producers commit out of order
Key: ARTEMIS-4517
URL: https://issues.apache.org/jira/browse/ARTEMIS-4517
Project: ActiveMQ Artemis
Issue Type: Bug
Components: Broker
Affects Versions: 2.31.0
Reporter: Gary Tully
Assignee: Gary Tully
As part of ARTEMIS-2458, cancel puts messages back onto the queue on sequence
id order, but the sequence id is allocated to producers on message send (via
the message store) and can be unordered w.r.t to a queue view when producer
transactions overlap.
The queue has the correct initial producer order, with out of order sequenceId.
When messages are cancelled back to the queue they go back in sqeuenceId order
in error, giving a consumer out of order messages on the second or subsequent
delivery attempts.
each queue needs to retain its own sequence and apply to its reference, such
that messages can be cancelled back and retain the queue order.
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