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stamen / terrain-classic

World-wide CartoCSS port of Stamen's classic terrain style
ISC License
144 stars 35 forks source link

Few missing hillshade & landcover tiles #82

Closed ungarj closed 8 years ago

ungarj commented 8 years ago

Missing landcover:

Austria: http://maps.stamen.com/terrain/beta/#12/47.7319/13.4833 Izmir: http://maps.stamen.com/terrain/beta/#7/40.718/26.724

Missing hillshade in Teheran: http://maps.stamen.com/terrain/beta/#7/35.934/52.064

mojodna commented 8 years ago

Good eye, thank you for spotting these. They've been removed from S3 and will be re-rendered (unless they've already been re-rendered).

In theory the style is self-healing, as it will invalidate tiles where an upstream error occurred (missing tiles being composited together) to be re-rendered on the next request. However, it appears that S3 occasionally returns 404 when it's supposed to redirect, and those are treated as "successful" (despite containing no data), leading to busted, cached tiles like you spotted.