[Tile-serving] [mod_tile] render_list errors (#54)

[Andrey-VI]

> Therefore, this is likely a separate issue from the one previously observed.

Maybe. I'm not sure. But these errors appeared in the latest mod_tile revisions. Never seen them in older (summer) versions.

> Do you know why it might have failed to initialise the projection?

No idea, but all my maps in EPSG:3395 projection (+proj=merc +datum=WGS84 +over). And every time after restarting renderd I see many lines `Unknown projection string, using web mercator as never the less. +proj=merc +datum=WGS84 +over ` in daemon.log. But my maps are rendered in correct projection.

> Do non of the tiles of that layer render?

Every time these errors appear in different amounts. For example:
```
					errors
zoom	1-st attempt	2-nd attempt
6		1				0
7		1				1
8		0				2
9		8				1
```

> What is your command line argument for render_list?

The command:
render_list -a -f -m rumap_m -n 16 -t /raid/tiles -s /var/run/renderd/renderd.sock -z 0 -Z 0 -v  && render_list -a -f -m rumap_m -n 16 -t /raid/tiles -s /var/run/renderd/renderd.sock -z 1 -Z 1 -v && render_list -a -f -m rumap_m -n 16 -t /raid/tiles -s /var/run/renderd/renderd.sock -z 2 -Z 2 -v && etc. until zoom level 9

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Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/mod_tile/issues/54#issuecomment-31166840
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