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
elsewhere?
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
the failures.
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.
Stefan
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