id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
1866	nginx does not log error if packet exceeds http2_max_field_size	sjuhasz.chemaxon.com@…		"We are using nginx as reverse proxy in front of a sonarqube isntallation.
Sonarqube uses it's own api interface to generate certain reports.
To do this it sends the query as url encoded request, to it's own api endpoint.
The issue happens when the URL encoded query is larger than the default 4k value on http2_max_field_size. In our case it was 5.5k. Nginx did not pass the request to the backend service, neither did it respond with error. It logged:
23/Sep/2019:13:35:38 +0200] ""-"" 000 0 ""-"" ""-""
and ate the packet.
The directive is from http://nginx.org/en/docs/http/ngx_http_v2_module.html"	defect	closed	minor		nginx-module	1.16.x	duplicate			Linux sonar 4.15.0-65-generic #74-Ubuntu SMP Tue Sep 17 17:06:04 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.16.1
built with OpenSSL 1.1.1  11 Sep 2018
TLS SNI support enabled
configure arguments: --with-cc-opt='-g -O2 -fdebug-prefix-map=/build/nginx-hIpOlr/nginx-1.16.1=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC -Wdate-time -D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -fPIC' --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-compat --with-debug --with-pcre-jit --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_flv_module --with-http_geoip_module=dynamic --with-http_gunzip_module --with-http_gzip_static_module --with-http_image_filter_module=dynamic --with-http_mp4_module --with-http_perl_module=dynamic --with-http_random_index_module --with-http_secure_link_module --with-http_sub_module --with-http_xslt_module=dynamic --with-mail=dynamic --with-mail_ssl_module --with-stream=dynamic --with-stream_ssl_module --with-stream_ssl_preread_module --add-dynamic-module=/build/nginx-hIpOlr/nginx-1.16.1/debian/modules/http-headers-more-filter --add-dynamic-module=/build/nginx-hIpOlr/nginx-1.16.1/debian/modules/http-auth-pam --add-dynamic-module=/build/nginx-hIpOlr/nginx-1.16.1/debian/modules/http-cache-purge --add-dynamic-module=/build/nginx-hIpOlr/nginx-1.16.1/debian/modules/http-dav-ext --add-dynamic-module=/build/nginx-hIpOlr/nginx-1.16.1/debian/modules/http-ndk --add-dynamic-module=/build/nginx-hIpOlr/nginx-1.16.1/debian/modules/http-echo --add-dynamic-module=/build/nginx-hIpOlr/nginx-1.16.1/debian/modules/http-fancyindex --add-dynamic-module=/build/nginx-hIpOlr/nginx-1.16.1/debian/modules/nchan --add-dynamic-module=/build/nginx-hIpOlr/nginx-1.16.1/debian/modules/http-lua --add-dynamic-module=/build/nginx-hIpOlr/nginx-1.16.1/debian/modules/rtmp --add-dynamic-module=/build/nginx-hIpOlr/nginx-1.16.1/debian/modules/http-uploadprogress --add-dynamic-module=/build/nginx-hIpOlr/nginx-1.16.1/debian/modules/http-upstream-fair --add-dynamic-module=/build/nginx-hIpOlr/nginx-1.16.1/debian/modules/http-subs-filter
"