GeoIP: anyway to pull out lat/lon?

[Igor Sysoev]

On Thu, May 08, 2008 at 09:31:27AM +0100, Phillip B Oldham wrote:

> # awk '{print $2}' geo.conf | sort | uniq | wc -l
> 119313
> 
> So am I right in thinking that nginx only stores each unique value with 
> a mapping to the ip range(s)? If so, 119313 isn't too bad, and comes in 
> a shade under your list.

Yes, nginx stores uniq values only.

But memory is also required for the radix tree itself.

> Igor Sysoev wrote:
> >On Wed, May 07, 2008 at 03:59:06PM +0100, Phillip B Oldham wrote:
> >
> >  
> >>Looking into that further, the data I've got for lat/lon at city level 
> >>adds up to 120Mb. I could convert this to a geo.conf file using 
> >>geo2nginx.pl, but what sort of impact would this have on nginx running? 
> >>Would each child process take up 120Mb ram? Would nginx slow down for 
> >>each request having to work through such a large data set?
> >>    
> >
> >We are using 141240 lines geo file:
> >
> >wc geo.conf 
> >  141240  282480 2979471 geo.conf
> >
> >Could you show yours ? Also could you show pair lines of the file ?
> >
> >Performance should not depend on file size if you have enough memory.
> >For geo map workers use the same memory inherited from parent on copy
> >on write basis. But as there are no writes to this memory, it remain
> >the same. Also duplicate values are stored only once.
> >
> >What does
> >
> >awk '{print $2}' geo.conf | sort | uniq | wc -l
> >
> >show ?
> >
> >  
> >>Igor Sysoev wrote:
> >>    
> >>>On Tue, May 06, 2008 at 04:06:06PM +0100, Phillip B Oldham wrote:
> >>>
> >>> 
> >>>      
> >>>>I've just got the geo module working, and I've geo2nginx.pl'd the 
> >>>>maxmind geolite country data which is working great. However, for our 
> >>>>application I need to get more information (specifically a lat/lon) 
> >>>>back 
> >>>>from nginx to pass to PHP.
> >>>      
> >>>>Any way I can do this? Or is the geo module too simple for this task?
> >>>>   
> >>>>        
> >>>The geo module simply maps ip to some string. You may use any strings.
> >>>Probably you need to modify geo2nginx.pl to process lat/lon.
> >>>      
> >
> >
> >  
> 
> -- 
> 
> *Phillip B Oldham*
> The Activity People
> phill at theactivitypeople.co.uk <mailto:phill at theactivitypeople.co.uk>
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-- 
Igor Sysoev
http://sysoev.ru/en/