id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
1973	Intermittent form body loss with concurrent HTTP2 POST requests	mitaylor.mozilla.com@…		"This was originally reported here: https://bugzilla.mozilla.org/show_bug.cgi?id=1631341, but it seems like it may be an nginx bug as it does not reproduce with apache.

Steps to Reproduce:

Send many HTTP/2.0 POST requests at once. The server is a Python APP run behind a reverse proxy using nginx

The sample JS script to do so is here:

https://bugzilla.mozilla.org/show_bug.cgi?id=1631341#c1

Expected: server receives form body for all requests
Actual: server intermittently receives no form body for some requests. This does not reproduce using HTTP/1.1.

There's a pcap dump between Firefox and Nginx here:

https://bugzilla.mozilla.org/show_bug.cgi?id=1631341#c7

"	defect	closed	minor		nginx-core	1.10.x	duplicate		mitaylor.mozilla.com@…	Linux debian 4.20.5-200.fc29.x86_64 #1 SMP Mon Jan 28 19:29:17 UTC 2019 x86_64 GNU/Linux	"nginx version: nginx/1.10.3
built with OpenSSL 1.1.0f  25 May 2017 (running with OpenSSL 1.1.0j  20 Nov 2018)
TLS SNI support enabled
configure arguments: --with-cc-opt='-g -O2 -fdebug-prefix-map=/build/nginx-0TiIP5/nginx-1.10.3=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-z,relro -Wl,-z,now' --prefix=/usr/share/nginx --conf-path=/etc/nginx/nginx.conf --http-log-path=/var/log/nginx/access.log --error-log-path=/var/log/nginx/error.log --lock-path=/var/lock/nginx.lock --pid-path=/run/nginx.pid --modules-path=/usr/lib/nginx/modules --http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --with-debug --with-pcre-jit --with-ipv6 --with-http_ssl_module --with-http_stub_status_module --with-http_realip_module --with-http_auth_request_module --with-http_v2_module --with-http_dav_module --with-http_slice_module --with-threads --with-http_addition_module --with-http_geoip_module=dynamic --with-http_gunzip_module --with-http_gzip_static_module --with-http_image_filter_module=dynamic --with-http_sub_module --with-http_xslt_module=dynamic --with-stream=dynamic --with-stream_ssl_module --with-mail=dynamic --with-mail_ssl_module --add-dynamic-module=/build/nginx-0TiIP5/nginx-1.10.3/debian/modules/nginx-auth-pam --add-dynamic-module=/build/nginx-0TiIP5/nginx-1.10.3/debian/modules/nginx-dav-ext-module --add-dynamic-module=/build/nginx-0TiIP5/nginx-1.10.3/debian/modules/nginx-echo --add-dynamic-module=/build/nginx-0TiIP5/nginx-1.10.3/debian/modules/nginx-upstream-fair --add-dynamic-module=/build/nginx-0TiIP5/nginx-1.10.3/debian/modules/ngx_http_substitutions_filter_module
"