Timothy Bish created AMQ-5661:
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Summary: AMQP: Honor receiver flow as the true prefetch value on a
link.
Key: AMQ-5661
URL: https://issues.apache.org/jira/browse/AMQ-5661
Project: ActiveMQ
Issue Type: Sub-task
Components: AMQP
Affects Versions: 5.11.1, 5.11.0
Reporter: Timothy Bish
Assignee: Timothy Bish
Fix For: 5.12.0
We currently don't honor the flow values sent from a receiver to indicate how
many messages our sender can produce (prefetch) and always maintain a fixed
value based either on a transport configuration option or the first non-zero
flow. This is however not in keeping with how the credit model is expected to
work in AMQP and leads to some issues with the brokers sender accepting
messages and buffering them until the receiver sends a flow thereby preventing
those messages from being dispatched to another receiver subscribed to the same
destination.
We need to honor the link credit and only dispatch when the receiver indicates
it is willing to take messages by sending more link credit.
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