[OSM-dev] What can we do to get a tile.openstreetmap.org contributable CDN within a month?
Lynn W. Deffenbaugh (Mr)
ldeffenb at homeside.to
Fri Dec 30 17:23:15 GMT 2011
I would love to monitor such discussion and contribute if I think I have
something to offer. Will such discussion be here on the [OSM-dev} or
I currently use the freely available CoralCDN (http://www.coralcdn.org/)
to distribute updates to my APRSISCE/32 APRS client software
(http://aprsisce.wikidot.com/), but have mixed results (like only about
50% success, but every cached delivery saves my original bandwidth).
Thankfully I built in a direct backup link that picks up the slack from
Theoretically the CoralCDN could be used for distributing OSM tiles by
simply suffixing the domain with ".nyud.net", but I have not tried this
yet. There would be little to no intelligence brought to bear on how
long individual tiles would be cached vs flushed and/or whether
mixed-revision tiles would be present in and delivered from the cache,
not to mention that I don't think the CoralCDN passes through the
original User-Agent either.
Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
On 12/30/2011 12:10 PM, Stefan de Konink wrote:
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> The basic outline;
> - - People seem to love using tile.openstreetmap.org for any of their apps
> - - Apps get blocked for various reasons, contributing back is difficult
> - - OpenStreetMap wants to be the leading provider of such data
> I would propose a small working group to outline what should happen to
> facilitate the creation of a Content Delivery Network (CDN) serving
> the basic tiles, and allow easy contribution this network. This should
> produce a prototype of at least 3 servers.
> Questions such as: quality, update frequency, traffic shaping,
> geographical balancing and high availability could be part of this
> working group.
> I would like to invite anyone to participate, especially:
> - people that already have their own tileservers running, and/or
> are currently balancing traffic;
> - business folks: what could be a motivation and what can be a
> cutback in for example attribution,
> - users of for example openlayers, etc. what kind of caching can
> be applied, and if this should be configurable client side
> Participation can announced in private or on list.
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