OK,
Here is the source of the problem. The cache file generated by
webazolver is the source of the problem. Based on the information of the
software webalizer, as this:
"Cached DNS addresses have a TTL (time to live) of 3 days. This may be
changed at compile time by editing the dns_resolv.h header file and
changing the value for DNS_CACHE_TTL."
The cache file is process each night, and the records older then 3 days
are remove, but somehow that file become a sparse file in the process
and when copy else where show it's real size. In my case that file was
using a bit over 4 millions blocks more then it should have and give me
the 4GB+ difference in mirroring the content.
So, as far as I can see it, this process of expiring the records from
the cache file that is always reuse doesn't shrink the file really, but
somehow just mark the records inside the file as bad, or something like
that.
So, nothing to do with OpenBSD at all but I would think there is a bug
in the portion of webalizer however base on what I see from it's usage.
Now the source of the problem was found and many thanks to all that
stick with me along the way.
Always feel good to know in the end!
Thanks to Otto, Ted and Tom.
Daniel
