id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
1799	client_max_body_size ignored except at the bottom of http context	kristian.ronningen@…		"When attempting to PUT a resource of about 40MB to an nginx endpoint, the following was logged:

{{{
2019/06/26 13:45:10 [error] 17768#17768: *1 client intended to send too large body: 41011661 bytes, client: <redacted>, server: <redacted>, request: ""PUT /<redacted> HTTP/1.1"", host: ""<redacted>""
}}}

This happened even with a setting of `client_max_body_size 100M;` inside the `server { }` context.

I also tried to put it into a `location { }` context, both of which should work according to the documentation, but the same error was thrown.

Setting `client_max_body_size 100M;` inside the `http { }` context worked, but only if it was the very last entry.

Some googling found people with similar experiences, but not with any explanations.

It looks like this directive is ignored unless it is placed in certain very specific locations, contrary to what the documentation says. If this is not a bug, then the documentation should be clearer.

Here's a very brief reconstruction of my config and the locations I've tried to use the `client_max_body_size` directive:

{{{
/etc/nginx/nginx.conf:

http {

    client_max_body_size 100M; # Not bottom of http context - is ignored

    include /etc/nginx/sites-enabled/*;

    client_max_body_size 100M; # Is used

}

/etc/nginx/sites-enabled/somesite.conf:

server {
    include /etc/nginx/conf.d/include.settings;
}

/etc/nginx/conf.d/include.settings:

client_max_body_size 100M; # In server context - is ignored

location /mylocation {
    client_max_body_size 100M; # In location context - is ignored
}
}}}"	defect	closed	minor		nginx-core	1.14.x	worksforme	client_max_body_size context		"# uname -a
Linux de01 4.9.0-9-amd64 #1 SMP Debian 4.9.168-1+deb9u3 (2019-06-16) x86_64 GNU/Linux"	"# nginx -V
nginx version: nginx/1.14.1
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-jqo7Nx/nginx-1.14.1=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC -Wdate-time -D_FORTIFY_SOURCE=2' --with-ld-opt='-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-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_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-stream_ssl_preread_module --with-mail=dynamic --with-mail_ssl_module --add-dynamic-module=/build/nginx-jqo7Nx/nginx-1.14.1/debian/modules/http-auth-pam --add-dynamic-module=/build/nginx-jqo7Nx/nginx-1.14.1/debian/modules/http-dav-ext --add-dynamic-module=/build/nginx-jqo7Nx/nginx-1.14.1/debian/modules/http-echo --add-dynamic-module=/build/nginx-jqo7Nx/nginx-1.14.1/debian/modules/http-upstream-fair --add-dynamic-module=/build/nginx-jqo7Nx/nginx-1.14.1/debian/modules/http-subs-filter

(Version 1.14.1-1~bpo9+1 from Debian stretch backports)"