[jira] [Updated] (TS-3184) SPDY window_update not triggered correctly..

["Leif Hedstrom (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TS-3184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Leif Hedstrom updated TS-3184:
------------------------------
    Summary: SPDY window_update not triggered correctly..  (was: 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
>            Assignee: Sudheer Vinukonda
>             Fix For: 5.2.0
>
>
> 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, even though, the aggregate of the delta_window_size for 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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