access_log

[Philip Hallstrom]

>> Is it possible to send logs to some program instead of file?
>> Documentation
>> (http://wiki.codemongers.com/NginxHttpLogModule#access_log) show only
>> one way (file).
>> Now we use 'access_log  /dev/stdout' in configuration and run nginx via
>> 'nginx | program' - but it is not elegant.
>
> No, nginx does not support logging to pipe or syslog because of perfomance
> issues. Workarounds are /dev/stdout and mkfifo (but they are slow).

http://blog.pjkh.com/articles/2007/03/15/nginx-and-cronolog

But be sure to read the UPDATE at the bottom...

-philip