id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
699	nginx logs to /var/log/nginx/error.log if syslog server is not available	David Heidt		"I just switched to nginx's syslog and it works as desired. However there is some behaviour I think of as a bug:

This is the nginx.conf, I use:


{{{
    http {
      [...]
      access_log off;
      error_log off;
      # error_log /dev/null; # produces the same behaviour
      [...]

      server {
        [...]
        access_log syslog:server=127.0.0.1:5140;
        error_log syslog:server=127.0.0.1:5140;
        [...]
      }
    }

}}}

I have a syslog server (logstash with syslog input) on localhost, Port 5140 UDP.

This setup works.

However, when the syslog service is not availabe, nginx logs to

/var/log/nginx/error.log
This Path cannot be changed or removed.

The error.log contains messages like this on every request:

{{{
2015/01/19 15:10:45 [error] 2678#0: send() failed (111: Connection refused)
}}}

Imho when logging to UDP(syslog) the credo is ""fire and forget"", so nginx should not check at all if there's a syslog server available or not.


"	defect	closed	minor		nginx-core	1.7.x	invalid	syslog		Linux ip-172-31-12-120 3.13.0-36-generic #63-Ubuntu SMP Wed Sep 3 21:30:07 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux	"nginx -V
nginx version: nginx/1.7.9
built by gcc 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
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,-Bsymbolic-functions -Wl,-z,relro -Wl,--as-needed' --with-ipv6"