[mapserver-dev] Tile Access API

Steve Lime Steve.Lime at dnr.state.mn.us
Tue Apr 22 18:36:00 EDT 2008


So where are we with this one? I see the RFC on the site and the commentary has seemed to
play itself out. Time for a vote?

I'll start with a +1...

Steve

>>> On 4/15/2008 at 4:48 PM, in message
<30fe546d0804151448u68264c4fi477003846f520e43 at mail.gmail.com>, "Paul Ramsey"
<pramsey at cleverelephant.ca> wrote:
> Daniel,
> 
> On your two main issues:
> 
>>  I'm not sure where to stand with respect to this RFC specifically... in my
>> opinion, tiling is of little use without caching, and misbehaved clients or
>> high traffic sites can easily bring a server to its knees.
> 
> The barn door is already wide open on this one, and is already being
> traversed, but clients like ArcExplorer over WMS, Google Earth over
> WMS, and as you note OpenLayers over WMS.  You put up a server, egads,
> people use it!
> 
> A tile API is actually an improvement, since it's at least trivially
> easy to get proxy caching behavior within the constrained URL space
> provided by the tiling system.
> 
>>  This gets us to my second point... this RFC opens the door to caching tiles
>> directly in MapServer and I'm not sure if we want MapServer to start
>> managing a cache when it's real job is to produce maps.
> 
> We don't have to go through this door, but there's worse things in the
> world than adding orthogonal functionality.  As you note, it could be
> built as a piece along-the-side that uses libmapserver but is not
> itself mapserv.  If the demand is there, no reason not to do it, if it
> is done right.  This API is a chance to test those waters.
> 
> Paul
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