This thread might be of help:
http://nginx.org/pipermail/nginx/2009-June/013042.html

Ny the way "tail -F" is the only recommended way to do the near real-time log parsing with nginx.

On 14.01.2010, at 8:12, Dennis J. wrote:

> Hi,
> Is there a nginx equivalent to apaches CustomLog directive with the "|" prefix so it logs into stdin of another program/script? I need to do real-time processing of the access log data and I'm wondering how I can accomplish this once I switch to nginx.
>
> Regards,
> Dennis


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