[GIS] Tiles taking too long to render

mapnikmod-tileopenstreetmaposm2pgsql

I've followed the tutorial available here. The installation worked alright, but opening the tile in a browser leads to a 404 error. The only error from the server is "Failed to read cmd on fd 10".

After a long while, the tile is rendered (here, 1600 seconds):

renderd[18586]: DEBUG: DONE TILE default 13 4264-4271 2984-2991 in 1594.968 seconds
debug: Creating and writing a metatile to /var/lib/mod_tile/default/13/0/16/11/170/136.meta

How can I solve this problem?

Best Answer

Make sure that you are using the settings that are suggested after setting up Postgresql in the link that you followed:

shared_buffers = 128MB
checkpoint_segments = 20
maintenance_work_mem = 256MB
autovacuum = off

Also, please try increasing the number of threads in renderd.conf

And if you are using a relatively common machine eg. 8gb RAM, in my opinion, you should not import the full planet data. Try with small data first.

And the error: "Failed to read cmd on fd 10". Can be ignored.

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