Nginx not logging to socket

[Vladimir Homutov]

On Wed, Jun 24, 2015 at 08:31:31AM -0400, Danomi Czaski wrote:
> On Wed, Jun 24, 2015 at 7:03 AM, Vladimir Homutov <vl at nginx.com> wrote:
> > On Wed, Jun 24, 2015 at 06:12:49AM -0400, Danomi Czaski wrote:
> >> Hello,
> >>
> >> On Sun, Jun 21, 2015 at 8:19 AM, Andrew Holway
> >> <andrew.holway at otternetworks.de> wrote:
> >> > Hallo!
> >> >
> >> > Using rsyslog I have set up a logging socket and confirmed that its working
> >> > by piping in some stuff to "logger -u /dev/log"
> >> > nginx/1.8.0 does not seem to be dumping in logs however. The nginx config is
> >> > below..
> >>
> >> Any luck? I'm seeing the same problem on 1.7.12.
> >>
> >
> > do you see some errors in the local error log? If nginx is unable to
> > send data to socket for some reasons (check socket permissions, selinux
> > and similar), you will see errors in the local log file.
>
> My config looks like:
>
>     error_log  syslog:server=unix:/dev/log;
>
> The only error I see is that nginx can't open /var/log/nginx/error.log.
>
>     $ nginx -t
>     nginx: [alert] could not open error log file: open()
> "/var/log/nginx/error.log" failed (2: Unknown error)
>     nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
>     nginx: configuration file /etc/nginx/nginx.conf test failed
>
> Of course /var/log/nginx isn't there because I'm trying to use syslog.
> If I create /var/log/nginx, nginx starts and I'll see debugging logs
> there but nothing related to syslog problems.
>
> The permissions on /dev/log look fine:
>
>     $ ls -l /dev/log
>     srw-rw-rw-    1 root     root             0 Jun 24 12:41 /dev/log=
>

did you try increasing log level?  If there are no errors, nginx will
not write anything to log in your case.

you can add one more error_log directive and point it to some local
file with write permissions to check there for possible errors.