Milter-greylist

--- In milter-greylist@yahoogroups.com, manu@n... wrote:
> l_facq <facq@u...> wrote:
> 
> >  i have think to this : 
> > 
> >  using a hash function like md5 on ip/from/to info 
> >  could be a good mean to
> >  - speed up (to check) the matching process
> >  - limit memory fragmentation (compared to futur string allocation in
> > replacement of the fixed ADDRLEN siwe)
> >  - limit memory consumation
> >  - limit .db size and speed up dump/reload process
> 
> milter-greylist supports regexs matching, you can't do that if you store
> hashes.

 as far as i undestrand/imagine the process, i think that this regex
matching could be done *before* hashing

 1 regex match on from/to => exit if ok
 2 hash
 3 search this hash in db
 4 if found => mail ok
 5 not found => create an entry

 i didnt look all the process in detail, so may be i'm wrong

[...]
> greylist walk, it's the text dump. I guess it could be solved by
> partially dumping to multiples files, or by using a real database
> backend.

 on the fly compression (zlib) could be an easy way reduce disk access
(if this is the bottle neck).

 LF.

--
Laurent FACQ - Réseau REAUMUR / Université Bordeaux I