[Tilesathome] xapi problem?

[Christopher Schmidt]

On Thu, Apr 03, 2008 at 03:14:51PM +0100, Andrew McCarthy wrote:
> Hi folks,
> 
> I'm relatively new to this, and I've been trying to build some lowzoom
> tiles (z8-11) as described in the wiki page:
> 	http://wiki.openstreetmap.org/index.php/Tiles%40home/lowzoom
> 
> Unfortunately, the tiles are randomly missing different elements.
> Sometimes the coastline is missing, sometimes the roads; two subsequent
> runs can produce different output. tilesGen.pl downloads the data in
> several sections, and it seems like the xapi server is returning empty
> results for some sections at random (the file contains only the xml
> header, the opening and (sometimes) the closing <osm> tag, and nothing
> else).
> 
> I'm guessing the sections with the closing <osm> tag are correct, and
> the ones without are errors.
> 
> Is this a known problem, or is it just me?

Occasionally (about once a week), I'll need to restart the osmxapi
server, which will then interrupt the download process and give you
files that don't have a closing <osm> tag. Recently, this happened once
yesterday, and several times over the weekend due to the various issues
with the NFS mount that hosts MySQL for t at h. 

Additionally, osmxapi has a two hour timeout, so if your request takes
two hours and doesn't do anything, it will kill the connection.

I do not know if either of these explains your problem.

Regards,
-- 
Christopher Schmidt
MetaCarta