Quick question about using kill -USR1 to recreate access.log

[Valentin V. Bartenev]

On Tuesday 20 May 2014 09:52:09 Lasse Laursen wrote:
> Alternatively have a look here:
> http://www.cambus.net/log-rotation-directly-within-nginx-configuration-file
> /
> 
[..]

This is a bad way to solve the problem.

 1. It introduces two additional open()/close() system calls per access_log
    per request (not to mention all regexp and variables processing);

 2. It unnecessarily complicates nginx configuration, which is intended to
    stay clear and simple.

What is the problem with log rotation tools?  Why even is someone even trying 
to avoid using them?  

  wbr, Valentin V. Bartenev