Sudheer Vinukonda created TS-3184:
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Summary: 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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