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We are trying to set up our own openstreetmap server. From what I read here, you can use a variety of caches to speed up serving the data.

Now, once a week, the people of openstreetmap provides a differential update with the changes in the maps.

If I import those changes once a week, how does TileStache know that what it has generated is no longer valid? Does it handle it itself, or should I invalidate the cache from somewhere else?

Can I do it intelligently? ie, only invalidate the regions that contain changes.

share|improve this question
This is assuming the cache I choose doesn't handle a TTL natively – juan Jun 7 '13 at 16:35
For what I know, such function is not built inside TileStache and you have to manage it yourself to delete cache when data are updated. – Below the Radar Jun 7 '13 at 18:07

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