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Re: HTTP2 DATA frame transmitted at later point for same stream

From: Daniel Stenberg via curl-library <>
Date: Thu, 18 Nov 2021 11:23:31 +0100 (CET)

On Thu, 18 Nov 2021, Kunal Ekawde via curl-library wrote:

> At the server, since DATA is not complete at 13:25:55, it cannot process
> until balance DATA is transmitted.
> Any pointer as to why / in which conditions, libcurl can delay sending the
> DATA packets ?

I can't find a reasonable explanation for that. It needs to be
debugged/investigated I think. Add trace-points and debug output in the code
and monitor/compare what wireshark and the server side think of the

Maybe related to issue #7977: ?

> libcurl sending more amount of DATA frames crossing WINDOW_UPDATE specified
> by server ?

I don't understand this question, Can you elaborate?

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Received on 2021-11-18