Hello,
I have a rendering stack with mod_tile/tirex which works quite fine.
Now I discovered that tiles which do not exist at all and take longer to
render will return a 404 after 3 seconds.
This is surprising to me as I have in apache's mod_tile.conf the
following settings:
# Timeout before giving up for a tile to be rendered
ModTileRequestTimeout 3
# Timeout before giving up for a tile to be rendered that is otherwise
missing
ModTileMissingRequestTimeout 30
With these setting I would have expected that the timeout is 30 seconds
for tiles which do not exist at all and be only 3 seconds for requests
where some older (outdated) tile exists.
I enabled a higher verbosity level and got this in apache logs
(shortened to the relevant info):
Requesting style(s2) z(7) x(39) y(73) from renderer with priority 5
request_tile: Request xml(s2) z(7) x(39) y(73) could not be rendered in
3 seconds
tile_storage_hook: Missing tile was not rendered in time. Returning File
Not Found
So why is mod_tile using a timeout of 3 seconds and not 30 seconds?
More confusing: After I inserted the mentioned two lines into my
VirtualHost config section which handles the rendering mod_tile is
working as expected.
Does this indicate that the way global settings are handled by mod_tile
is broken? Might it indicate that my other settings are not effective as
well?
Should I open a bug report for it? At GitHub?
Stephan
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