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https://issues.apache.org/jira/browse/DISPATCH-781?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Ross updated DISPATCH-781:
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Description:
This feature reverses the management of incoming credit for message-routed
deliveries.
The current mechanism is based on the the capacity of the incoming
(sender-client) links. Each attached sender is given credit equal to the
configured link capacity regardless of the capacity of outgoing
(receiver-client) links for the same address. This means that even under
congestion, a newly attached sender will get full capacity credit to send.
The proposed mechanism is based not on incoming capacity but on outgoing
capacity. In this case, the senders are provided a share of the total outgoing
capacity for an address. As the number of incoming links (senders) for an
address changes and the total capacity for outgoing links changes, the credit
window of the senders shall be adjusted.
The proposal is a heuristic approach. It does not revoke credit from senders
(but will limit the number of credits that are replenished). It will also not
deny credit if there are more incoming links than outgoing capacity.
was:
This feature reverses the management of incoming credit for message-routed
deliveries.
The current mechanism is based on the the capacity of the incoming
(sender-client) links. Each attached sender is given credit equal to the
configured link capacity regardless of the capacity of outgoing
(receiver-client) links for the same address. This means that even under
congestion, a newly attached sender will get full capacity credit to send.
The proposed mechanism is based not on incoming capacity but on outgoing
capacity. In this case, the senders are provided a share of the total outgoing
capacity for an address. Under congestion, newly attached senders will not be
given full credit.
The proposal is a heuristic approach. It does not revoke credit from senders
(but will limit the number of credits that are replenished). It will also not
deny credit if there are more incoming links than outgoing capacity.
> Experimental - Tie end-to-end flow control of message-routed deliveries to
> outgoing capacity
> --------------------------------------------------------------------------------------------
>
> Key: DISPATCH-781
> URL: https://issues.apache.org/jira/browse/DISPATCH-781
> Project: Qpid Dispatch
> Issue Type: Improvement
> Components: Router Node, Routing Engine
> Reporter: Ted Ross
> Assignee: Ted Ross
>
> This feature reverses the management of incoming credit for message-routed
> deliveries.
> The current mechanism is based on the the capacity of the incoming
> (sender-client) links. Each attached sender is given credit equal to the
> configured link capacity regardless of the capacity of outgoing
> (receiver-client) links for the same address. This means that even under
> congestion, a newly attached sender will get full capacity credit to send.
> The proposed mechanism is based not on incoming capacity but on outgoing
> capacity. In this case, the senders are provided a share of the total
> outgoing capacity for an address. As the number of incoming links (senders)
> for an address changes and the total capacity for outgoing links changes, the
> credit window of the senders shall be adjusted.
> The proposal is a heuristic approach. It does not revoke credit from senders
> (but will limit the number of credits that are replenished). It will also
> not deny credit if there are more incoming links than outgoing capacity.
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