[ka-Map-users] Hardware requirements for Ka-Map site

[Mike Davis]

Thanks for the response.

I am interested in regional and statewide (Alaska) mapping.  While
there is certainly a large geographic extent to cover, it shouldn't be
anywhere near the level of the Google site.  The customer base is
entirely intranet based so the pipe size isn't much of an issue
either.

-Mike

On 5/26/05, Paul Spencer <pspencer at dmsolutions.ca> wrote:
> Mike,
> 
> this is a huge can of worms :)
> 
> Our maps.dmsolutions.ca server is running a stock intel pc around 3 GHz,
> 200GB 7200 rpm HD, and a gig or so of ram (maybe more?) with redhat
> linux.  Nothing particularly fancy, but reasonably big bandwidth pipe.
> This suits our needs but is not really suitable for any serious amount
> of traffic (the immediate response from our release peaked the load on
> the server quite a bit)
> 
> There are several factors to consider:
> 
> disk space - tile caching requirements are based on the extents and
> scales you will use with your maps, multipled by the number of layers to
> serve separately - someone figured out that to cache all tiles at all
> scales for continental US (google) was about 21 TB.
> 
> This is obviously not practical for most of us, so the tile caching
> would need to be dynamic and reasonably fast ... and clean up after
> itself (current version doesn't do that).
> 
> bandwidth - ka-Map is optimized to put images on the client and leave
> them there, but its a big hit the first visit
> 
> processor - currently, every move causes an update to the keymap plus
> additional tiles ... and when the tiles aren't available, that becomes a
> real map draw somewhere ... we figure that we can serve about 3000 users
> an hour on our current setup but that would be pushing the processor ...
> 
> it really comes down to how you are planning to use it, the amount of
> performance you need out of it, number of users etc
> 
> Hope this helps ...
> 
> Paul
> 
> Mike Davis wrote:
> > As I attempt to install the Ka-Map demo on our test server (Crazy Army
> > WinXP/IIS box... ugh) I am constantly amazed at the speed the maps run
> > at.  I realize much of this has to do with eliminating many of the
> > interface bottlenecks of other mapserver interfaces, but I am
> > wondering what server set-ups people are using for their Ka-Maps
> > sites.
> >
> > Specifically, what hardware set-up is DM Solutions using for their test server?
> >
> > Also Gregg, what type of server are you using for www.coloradohikers.com?
> >
> > Basically, I am trying to gauge weather or not to start gunning for an
> > additional server just for Ka-Map based sites, or if I can piggyback
> > them on our existing server.
> >
> >
> > Thanks for your help,
> >
> > -Mike
> >
> > _______________________________________________
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> > ka-Map-users at lists.maptools.org
> > http://lists.maptools.org/mailman/listinfo/ka-map-users
> >
> 
> --
> +-----------------------------------------------------------------+
> |Paul Spencer                           pspencer at dmsolutions.ca   |
> +-----------------------------------------------------------------+
> |Applications & Software Development                              |
> |DM Solutions Group Inc                 http://www.dmsolutions.ca/|
> +-----------------------------------------------------------------+
>