Hi! The PBF format has maximum block sizes. Osmium used to just write 8000 objects into each block and hope that there is enough space. Turns out that there are cases where that doesn't work. If there are a lot of very large relations, the block can overflow. Somebody noticed that problem and Peter Körner fixed it in Osmium (Thanks!). Osmium now checks whether the buffer is 95% full and then writes it out (the 95% should leave more than enough space for the string table). Its still not a perfect strategy, you could create an OSM file that would overflow the buffer, but it should not happen in practice.
So if you see this problem, upgrade to a newer version of Osmium. And if you have implemented a PBF writer, you should probably check whether it suffers from the same or similar problem. Jochen -- Jochen Topf [email protected] http://www.remote.org/jochen/ +49-721-388298 _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
