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https://issues.apache.org/jira/browse/TS-3184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14205616#comment-14205616
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ASF subversion and git services commented on TS-3184:
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Commit 60bf04ddf9280af4dad4d267223ede29353b3a01 in trafficserver's branch
refs/heads/master from [~sudheerv]
[ https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;h=60bf04d ]
[TS-3184]: spdy window_update not triggered correctly
> spdy window_update not triggered correctly..
> --------------------------------------------
>
> Key: TS-3184
> URL: https://issues.apache.org/jira/browse/TS-3184
> Project: Traffic Server
> Issue Type: Bug
> Components: SPDY
> Reporter: Sudheer Vinukonda
>
> During a session start, spdy advertises the initial window size as the
> configured {{proxy.config.spdy.initial_window_size_in}}. A window_update is
> triggered whenever the current delta_window_size reaches half this advertised
> window size. However, the condition that checks for triggering the window
> update compares the delta_window_size for each stream with the initial window
> size. This fails to trigger a window_update when the delta_window_size for
> each stream individually is not half the initial_window_size, but, the
> aggregate of all the streams is high enough. Consequently, the sender stalls
> upon exhausting the send window size and eventually times out waiting for a
> window update (which never happens, since, individually, each stream doesn't
> hit half the initial window size).
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