On Tue, Oct 6, 2009 at 9:57 PM, Tim Alder <[email protected]>wrote:
> XAPI has real nice functionallty. I.e. if you want to know the path of a > long river or a street, you can get it simple and fast via XAPI, also if > this object has more than one way. > With OSM API instead you need to download ALL datas in a bbox and filter > than and the bbox-size is very limited. So I could NOT work with the > normal OSM-API for Query-to-map or something else. > > The XAPI runs for a long time very well, so the software seems ok und we > should give it a chance. If it makes too much problems we can stop the > experiment each time. I know that the highest priority project part is > to get the OSM-maps into Wikipedia, so if XAPI installation would be a > real problem for the live system, we should stop it. > (Only an idea: Perhaps XAPI could run only on one core and reduce so > the risk for the stability of the whole system. ) > > If we would have enough harddrive space we could run XAPI on cassini > instead of ptolemy, there we could also try to program the XAPI > functionality with Postgis on > an optimize database layout. (For my application I don't need timestamp > and editor for each node, so we can perhaps reduce the space > requirements.) I suspect a Postgis version of XAPI would be slower, but I have no hard evidence of this. It would be very easy to eliminate unneeded tags from a Wikipedia specific version of XAPI. The attributes user, timestamp, changeset and version are probably all unnecessary. And tags such as created_by, tiger:* and other import meta-data could be suppressed. 80n > Other maps need perhaps also alternative database > layouts and so need alternative layouts. More space we could also use to > save tile for lower zoom levels of our experimental maps, etc. > > Greetings Kolossos > > > Marcin Cieslak schrieb: > > Do you think you could use normal OSM API (instead of XAPI) for your > projects? > > > > I don't know - what do you plan to use the extra space for? > > > > > > > _______________________________________________ > Maps-l mailing list > [email protected] > https://lists.wikimedia.org/mailman/listinfo/maps-l >
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