Hi everyone,

as mentioned in my previous mail, we were going to re-import the osm planet database for mapnik rendering, after it stopped updating in September. This is now complete and the database is up-to-date again with a lag of typically around 5 minutes behind the main osm database ( http://munin.toolserver.org/OSM/ptolemy/replication_delay2.html ).

At the same time there was a switch to postgresql 9.1, but all tools and renderings should be working fine with the new database.

If anybody notices anything that doesn't work as intended, please let us know to see if it can be fixed.

Not everything is working perfectly yet, but hopefully at least no worse than before. The things currently not working correctly yet are:

1) Low-zoom rendering tiles. These are still very slow to render and many of the low-zoom tiles still time out, even though I have set the timeout up to 25 minutes. Not only does this clog up one of 3 rendering slots for 25 minutes, it also results in that the tile isn't rendered fresh and still considered "dirty", so the system puts those tiles into the queue for rendering again immediately, clogging up the queue once more. The current status of the queues can be seen either at http://toolserver.org/~mazder/tirex-status/?short=1&extended=0&refre... or http://munin.toolserver.org/OSM/ptolemy/tirex_status_queued_requests.html

2) Tile expiry. Although the db is updated every 5 minutes, tiles are not currently expired. For one, this is because there are some bugs in the software (osm2pgsql) used to identify the tiles to expire. But also, it is not yet clear how performance will be on trying to expire 250+ styles. We'll need to see what is feasible, but I suspect it will be something like expiring the 10 or so most used styles with the db update and then periodically expire the other styles with however much capacity is still available.

We'll have to see how stable everything is and then move on from there.

Kai