Peter Miller wrote: > Correct. I think the actual message is 'couldn't load the map'. Sometimes > it will load the data eventually if one persists, but generally it is > better to give it a rest for a few hours and try later. It only occurs > using Potlatch 2 btw, Potlatch 1 still works fine and never fails to > get the data in my experience.
A bit of background: "Couldn't load the map" is P2's general response for "I asked the API for some data, and an error came back". Because of limitations in Flash Player, historically that's all it's been able to show. Flash Player is not able to differentiate between the various error codes that the API might pass back. It basically just throws its hands in the air and says "waaaaaah" and leaves Potlatch 2 to cope with it. As a result, we built a workaround into the API. When P2 sends a request to the API, it now says "if there's an error, send it back to me as XML, not as an HTTP error code". That way, Flash Player doesn't balls it up, and P2 can report the error. This has been working well for uploads for a few months and was recently added for downloads too. I'm not 100% sure whether we deployed the download version at the time, or indeed whether it was working entirely correctly (simulating errors is kinda hard to do ;) ) but half an hour ago we tweaked it slightly and deployed the new version. So now if you get a simple "Couldn't load the map" it means a 500 server error genuinely came back from the API. This is the sort of thing that basically shouldn't happen, but it can occur, AIUI, if the daemon restarts halfway through the response; I've had that very occasionally. If you get "Couldn't load the map: <some message>" then that's the API saying "hey, there was a problem with your request". It might be that you've downloaded too much data, or it might be that P2 sent an invalid request. P1 doesn't use the same API so doesn't flake out in this way. It just flakes out differently. :) cheers Richard -- View this message in context: http://gis.638310.n2.nabble.com/Can-t-load-map-tp6841591p6843457.html Sent from the Great Britain mailing list archive at Nabble.com. _______________________________________________ Talk-GB mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-gb
