Mercurial > hg > nginx-quic
annotate auto/init @ 8398:82e174e47663
Changed keepalive_requests default to 1000 (ticket #2155).
It turns out no browsers implement HTTP/2 GOAWAY handling properly, and
large enough number of resources on a page results in failures to load
some resources. In particular, Chrome seems to experience errors if
loading of all resources requires more than 1 connection (while it
is usually able to retry requests at least once, even with 2 connections
there are occasional failures for some reason), Safari if loading requires
more than 3 connections, and Firefox if loading requires more than 10
connections (can be configured with network.http.request.max-attempts,
defaults to 10).
It does not seem to be possible to resolve this on nginx side, even strict
limiting of maximum concurrency does not help, and loading issues seems to
be triggered by merely queueing of a request for a particular connection.
The only available mitigation seems to use higher keepalive_requests value.
The new default is 1000 and matches previously used default for
http2_max_requests. It is expected to be enough for 99.98% of the pages
(https://httparchive.org/reports/state-of-the-web?start=latest#reqTotal)
even in Chrome.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Thu, 08 Apr 2021 00:16:30 +0300 |
parents | 549b13cd793b |
children |
rev | line source |
---|---|
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
1 |
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
2 # Copyright (C) Igor Sysoev |
4412 | 3 # Copyright (C) Nginx, Inc. |
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
4 |
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
5 |
455 | 6 NGX_MAKEFILE=$NGX_OBJS/Makefile |
7 NGX_MODULES_C=$NGX_OBJS/ngx_modules.c | |
8 | |
9 NGX_AUTO_HEADERS_H=$NGX_OBJS/ngx_auto_headers.h | |
10 NGX_AUTO_CONFIG_H=$NGX_OBJS/ngx_auto_config.h | |
11 | |
12 NGX_AUTOTEST=$NGX_OBJS/autotest | |
13 NGX_AUTOCONF_ERR=$NGX_OBJS/autoconf.err | |
14 | |
15 # STUBs | |
469 | 16 NGX_ERR=$NGX_OBJS/autoconf.err |
17 MAKEFILE=$NGX_OBJS/Makefile | |
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
18 |
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
19 |
455 | 20 NGX_PCH= |
21 NGX_USE_PCH= | |
280
7c7183b3ea8b
nginx-0.0.2-2004-03-05-11:34:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
254
diff
changeset
|
22 |
7c7183b3ea8b
nginx-0.0.2-2004-03-05-11:34:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
254
diff
changeset
|
23 |
455 | 24 # check the echo's "-n" option and "\c" capability |
250
1903c6821958
nginx-0.0.2-2004-02-03-23:27:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
210
diff
changeset
|
25 |
1903c6821958
nginx-0.0.2-2004-02-03-23:27:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
210
diff
changeset
|
26 if echo "test\c" | grep c >/dev/null; then |
455 | 27 |
250
1903c6821958
nginx-0.0.2-2004-02-03-23:27:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
210
diff
changeset
|
28 if echo -n test | grep n >/dev/null; then |
1903c6821958
nginx-0.0.2-2004-02-03-23:27:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
210
diff
changeset
|
29 ngx_n= |
1903c6821958
nginx-0.0.2-2004-02-03-23:27:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
210
diff
changeset
|
30 ngx_c= |
455 | 31 |
250
1903c6821958
nginx-0.0.2-2004-02-03-23:27:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
210
diff
changeset
|
32 else |
1903c6821958
nginx-0.0.2-2004-02-03-23:27:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
210
diff
changeset
|
33 ngx_n=-n |
1903c6821958
nginx-0.0.2-2004-02-03-23:27:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
210
diff
changeset
|
34 ngx_c= |
1903c6821958
nginx-0.0.2-2004-02-03-23:27:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
210
diff
changeset
|
35 fi |
1903c6821958
nginx-0.0.2-2004-02-03-23:27:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
210
diff
changeset
|
36 |
1903c6821958
nginx-0.0.2-2004-02-03-23:27:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
210
diff
changeset
|
37 else |
1903c6821958
nginx-0.0.2-2004-02-03-23:27:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
210
diff
changeset
|
38 ngx_n= |
1903c6821958
nginx-0.0.2-2004-02-03-23:27:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
210
diff
changeset
|
39 ngx_c='\c' |
1903c6821958
nginx-0.0.2-2004-02-03-23:27:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
210
diff
changeset
|
40 fi |
452 | 41 |
42 | |
455 | 43 # create Makefile |
452 | 44 |
455 | 45 cat << END > Makefile |
452 | 46 |
2850
4e05bd832e56
fix "make upgrade" broken in r2759
Igor Sysoev <igor@sysoev.ru>
parents:
1393
diff
changeset
|
47 default: build |
452 | 48 |
49 clean: | |
455 | 50 rm -rf Makefile $NGX_OBJS |
8327
549b13cd793b
Configure: marked top-level make targets as phony.
Ruslan Ermilov <ru@nginx.com>
parents:
6425
diff
changeset
|
51 |
549b13cd793b
Configure: marked top-level make targets as phony.
Ruslan Ermilov <ru@nginx.com>
parents:
6425
diff
changeset
|
52 .PHONY: default clean |
452 | 53 END |