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kosmtik / kosmtik

Make maps with OpenStreetMap and Mapnik

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Memory lack in tile server?

sommerluk opened this issue · comments

commented

Hi.

When running Kosmtik in Ubuntu 19.04 installed on a physical machine, I get this error:

[httpserver] /openstreetmap-carto-with-data/tile/4/10/9.png?t=1555776759874 200
Trace
    at ProjectServer.raise (/home/sommerluk/Dokumente/OSM/kosmtik/src/back/ProjectServer.js:267:13)
    at /home/sommerluk/Dokumente/OSM/kosmtik/src/back/ProjectServer.js:85:34
    at /home/sommerluk/Dokumente/OSM/kosmtik/src/back/MetatileBasedTile.js:47:45
    at FSReqWrap.oncomplete (fs.js:141:20)
std::bad_alloc

Kosmtik is consuming extremly much memory. (I have 8 GB physical memory, and 11 GB swap.)

Correction: This seem to depend on the zoom level: The lower the zoom level of the tiles that are requested by the browser, the more memory is consumed. z3 and z4 are terrible, z15 works quite well.

commented

Well, seems to be rather a problem with .index files for shape files at these given low zoom levels. Problem disappears when deleting these .index files. So no problem of Kosmtik. Sorry for inconvenience. Closing.