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https://issues.apache.org/jira/browse/PROTON-940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robbie Gemmell updated PROTON-940:
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Attachment: 0001-PROTON-940-calculate-the-incoming-window-before-send.patch
Attaching change which fixes this. This patch is dependant on earlier (but not
yet committed) outgoing window changes made via the PR on PROTON-936.
> provide the session initial incoming window via Begin rather than sending a
> separate Flow
> -----------------------------------------------------------------------------------------
>
> Key: PROTON-940
> URL: https://issues.apache.org/jira/browse/PROTON-940
> Project: Qpid Proton
> Issue Type: Bug
> Components: proton-j
> Affects Versions: 0.8, 0.9, 0.9.1
> Reporter: Robbie Gemmell
> Assignee: Robbie Gemmell
> Fix For: 0.10
>
> Attachments:
> 0001-PROTON-940-calculate-the-incoming-window-before-send.patch
>
>
> When a session is created, a Begin frame is sent. One of the fields on the
> frame is the initial incoming window. Instead of populating the field,
> Proton-J currently sets it to 0 but then immediately discovers the window is
> 0 and sends a seperate Flow frame (in the same transport output sas the Begin
> frame) changing the window to the actual calculated value.
> This result is equivalent in the end and allowed by the protocol, but is not
> particularly obvious behaviour and is different than proton-c. The initial
> incoming window value should be conveyed in the Begin frame instead, removing
> need for the immediate Flow.
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