Support consumer priority in AMQP #11705
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Arguments * `rabbitmq:stream-offset-spec`, * `rabbitmq:stream-filter`, * `rabbitmq:stream-match-unfiltered` are set in the `filter` field of the `Source`. This makes sense for these consumer arguments because: > A filter acts as a function on a message which returns a boolean result > indicating whether the message can pass through that filter or not. Consumer priority is not really such a predicate. Therefore, it makes more sense to set consumer priority in the `properties` field of the `Attach` frame. We call the key `rabbitmq:priority` which maps to consumer argument `x-priority`. While AMQP 0.9.1 consumers are allowed to set any integer data type for the priority level, this commit decides to enforce an `int` value (range -(2^31) to 2^31 - 1 inclusive). Consumer priority levels outside of this range are not needed in practice.
michaelklishin
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Jul 13, 2024
michaelklishin
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Support consumer priority in AMQP (backport #11705)
acogoluegnes
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Jul 16, 2024
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Arguments
rabbitmq:stream-offset-spec,rabbitmq:stream-filter,rabbitmq:stream-match-unfilteredare set in thefilterfield of theSource.This makes sense for these consumer arguments because:
Consumer priority is not really such a predicate.
Therefore, it makes more sense to set consumer priority in the
propertiesfield of theAttachframe.We call the key
rabbitmq:prioritywhich maps to consumer argumentx-priority.While AMQP 0.9.1 consumers are allowed to set any integer data type for the priority level, this commit decides to enforce an
intvalue (range -(2^31) to 2^31 - 1 inclusive).Consumer priority levels outside of this range are not needed in practice.