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Willy Tarreau 97aaa67658 MINOR: mux-h2: only increase the connection window with the first update 
Commit dc57236 ("BUG/MINOR: mux-h2: advertise a larger connection window
size") caused a WINDOW_UPDATE message to be sent early with the connection
to increase the connection's window size. It turns out that it causes some
minor trouble that need to be worked around :
  - varnishtest cannot transparently cope with the WU frames during the
    handshake, forcing all tests to explicitly declare the handshake
    sequence ;
  - some vtc scripts randomly fail if the WU frame is sent after another
    expected response frame, adding uncertainty to some tests ;
  - h2spec doesn't correctly identify these WU at the connection level
    that it believes are the responses to some purposely erroneous frames
    it sends, resulting in some errors being reported

None of these are a problem with real clients but they add some confusion
during troubleshooting.

Since the fix above was intended to increase the upload bandwidth, we
have another option which is to increase the window size with the first
WU frame sent for the connection. This way, no WU frame is sent until
one is really needed, and this first frame will adjust the window to
the maximum value. It will make the window increase slightly later, so
the client will experience the first round trip when uploading data,
but this should not be perceptible, and is not worth the extra hassle
needed to maintain our debugging abilities. As an extra bonus, a few
extra bytes are saved for each connection until the first attempt to
upload data.

This should possibly be backported to 1.9 and 1.8.
 		2018-12-23 09:49:04 +01:00
contrib CONTRIB: debug: report stream-int's flag SI_FL_CLEAN_ABRT 2018-12-18 11:03:11 +01:00
doc [RELEASE] Released version 2.0-dev0 2018-12-22 11:20:35 +01:00
ebtree CLEANUP: fix typos in comments in ebtree 2018-11-18 22:23:15 +01:00
examples [RELEASE] Released version 2.0-dev0 2018-12-22 11:20:35 +01:00
include [RELEASE] Released version 2.0-dev0 2018-12-22 11:20:35 +01:00
reg-tests REGTEST: A basic test for "http-buffer-request" 2018-12-21 18:33:36 +01:00
scripts REGTEST: script: Add support of alternatives in requited options list 2018-12-21 15:33:26 +01:00
src MINOR: mux-h2: only increase the connection window with the first update 2018-12-23 09:49:04 +01:00
tests CLEANUP: fix a misspell in tests/filltab25.c 2018-11-18 22:23:15 +01:00
.gitignore DOC: split the README into README + INSTALL 2018-12-16 22:30:57 +01:00
CHANGELOG [RELEASE] Released version 2.0-dev0 2018-12-22 11:20:35 +01:00
CONTRIBUTING DOC: Fix typos in README and CONTRIBUTING 2018-11-12 08:54:12 +01:00
INSTALL [RELEASE] Released version 2.0-dev0 2018-12-22 11:20:35 +01:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS DOC: fix reference to map files in MAINTAINERS 2018-10-17 04:21:04 +02:00
Makefile REGTEST: Make reg-tests target support argument. 2018-12-20 10:37:32 +01:00
README DOC: split the README into README + INSTALL 2018-12-16 22:30:57 +01:00
ROADMAP DOC: update the roadmap about priority queues 2018-08-10 17:12:04 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 2.0-dev0 2018-12-22 11:20:35 +01:00
VERSION [RELEASE] Released version 2.0-dev0 2018-12-22 11:20:35 +01:00

README 

The HAProxy documentation has been split into a number of different files for
ease of use.

Please refer to the following files depending on what you're looking for :

  - INSTALL for instructions on how to build and install HAProxy
  - LICENSE for the project's license
  - CONTRIBUTING for the process to follow to submit contributions

The more detailed documentation is located into the doc/ directory :

  - doc/intro.txt for a quick introduction on HAProxy
  - doc/configuration.txt for the configuration's reference manual
  - doc/lua.txt for the Lua's reference manual
  - doc/SPOE.txt for how to use the SPOE engine
  - doc/network-namespaces.txt for how to use network namespaces under Linux
  - doc/management.txt for the management guide
  - doc/regression-testing.txt for how to use the regression testing suite
  - doc/peers.txt for the peers protocol reference
  - doc/coding-style.txt for how to adopt HAProxy's coding style
  - doc/internals for developer-specific documentation (not all up to date)