Opened 6 years ago

Closed 6 years ago

#655 closed defect (invalid)

access_log fails to create log file when path contains variables

Reported by: https://stackoverflow.com/users/573152/bernard-rosset Owned by:
Priority: major Milestone:
Component: nginx-module Version: 1.6.x
Keywords: Cc:
uname -a: Linux 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1+deb7u1 x86_64 GNU/Linux
nginx -V: nginx version: nginx/1.6.2
built by gcc 4.7.2 (Debian 4.7.2-5)
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_stub_status_module --with-http_auth_request_module --with-mail --with-mail_ssl_module --with-file-aio --with-http_spdy_module --with-cc-opt='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-z,relro -Wl,--as-needed' --with-ipv6

Description

If you use variables in access_log path, nginx critically fails at creating the file:
open() "/var/log/nginx/localhost/access.log" failed (2: No such file or directory) while logging request

Minimal configuration to reproduce:

events {
    worker_connections  1024;
}


http {
    server {
        listen       80;
        server_name  localhost;

        access_log  /var/log/nginx/$host/access.log;
    }
}

Also tested on Windows:
CreateFile() "C:\nginx-1.6.2/logs/localhost/access.log" failed (3: FormatMessage() error:(15105)) while logging request

Change History (2)

comment:1 by https://stackoverflow.com/users/573152/bernard-rosset, 6 years ago

Damn I had not read the docs until the end of section...

http://nginx.org/en/docs/http/ngx_http_log_module.html#access_log

Could you requalify this as enhancement proposal and delete this comment?

comment:2 by Maxim Dounin, 6 years ago

Resolution: invalid
Status: newclosed

Variables can be used in access_log in any place, including path. But nginx won't try to create intermediate directories if they don't exist. And I don't think it should.

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