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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-5466) Dispatch - Add different forwarding semantics for addresses
Date Fri, 10 Jan 2014 21:15:50 GMT

    [ https://issues.apache.org/jira/browse/QPID-5466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13868308#comment-13868308
] 

ASF subversion and git services commented on QPID-5466:
-------------------------------------------------------

Commit 1557260 from [~tedross] in branch 'dispatch/trunk'
[ https://svn.apache.org/r1557260 ]

QPID-5466
 - Added configuration for address semantics by prefix
 - Implemented Multiple/Single fanout with Closest and Spread biases
 - Added tests for the above
 - Added a new set of system tests using a network of two routers

> Dispatch - Add different forwarding semantics for addresses
> -----------------------------------------------------------
>
>                 Key: QPID-5466
>                 URL: https://issues.apache.org/jira/browse/QPID-5466
>             Project: Qpid
>          Issue Type: Improvement
>          Components: Qpid Dispatch
>            Reporter: Ted Ross
>            Assignee: Ted Ross
>
> (For version 0.2)
> At present, if there are multiple receivers for a particular address, Dispatch delivers
a copy of each message to all of the receivers.  This feature adds the ability to by-configuration
deliver messages to only one of those receivers.
> The configuration for this feature is per-address and defines two settings:
>  - _fanout_ is either Multiple or Single (and a placeholder for Group).  Multiple fanout
means all subscribers receive each message.  Single fanout means that only one subscriber
receives the message.
> - _bias_ controls how single-fanout is treated.  The following values for bias are provided:
>    -- _Closest_ - each message is delivered to the closest/least-cost subscriber.
>    -- _Spread_ - messages are spread indeterminately across all subscribers.
>    -- _Latency_ - (not implemented yet) Messages are delivered in a balanced way to all
subscribers based on the latency of acknowledgements.  This mode attempts to keep all subscribers
equally fed with incoming messages.



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