GeoIP: anyway to pull out lat/lon?

Igor Sysoev is at
Wed May 7 23:18:15 MSD 2008

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 
>, 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'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 to process lat/lon.

Igor Sysoev

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