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From "Bozo Dragojevic (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PROTON-200) [Proton-c] Credit distribution by messenger is not balanced across all links
Date Mon, 18 Feb 2013 14:59:12 GMT

    [ https://issues.apache.org/jira/browse/PROTON-200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13580643#comment-13580643
] 

Bozo Dragojevic commented on PROTON-200:
----------------------------------------

DoS is way better than not being able to connect the client no 2 :) More so for a 0.4 release.

A way to do that is linked in my first comment above.
apologize for external link to the patch, I can include it inline if that's more appropriate.
                
> [Proton-c] Credit distribution by messenger is not balanced across all links
> ----------------------------------------------------------------------------
>
>                 Key: PROTON-200
>                 URL: https://issues.apache.org/jira/browse/PROTON-200
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: proton-c
>    Affects Versions: 0.3
>            Reporter: Ken Giusti
>            Assignee: Ken Giusti
>             Fix For: 0.4
>
>         Attachments: proton-200.patch
>
>
> The method used to distribute credit to receiving links may lead to starvation when the
number of receiving links is > the available credit.
> The distribution algorithm always starts with the same link - see messenger.c::pn_messenger_flow()

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