[OSM-talk] more OSM coming soon
Andy Allan
gravitystorm at gmail.com
Thu Mar 26 14:43:59 GMT 2009
On Thu, Mar 26, 2009 at 12:00 PM, Shaun McDonald
<shaun at shaunmcdonald.me.uk> wrote:
> This is the weekly re-import of the data, when the render daemon is
> stopped for the duration.
I'm not entirely sure that it is, especially since I'd have expected
it to restart yesterday morning (or maybe this morning - again, not
sure when Jon does things). But looking at the munin graphs [1] I can
see that the eth0 load is high, the CPU has been flat out earlier
today, and the load average is spiking pretty high too. Mod_tile has a
load average cutout where it stops trying to render tiles in the few
seconds it normally gives renderd to respond (hence the usual few
seconds before the "coming soon" logo appears. When that threshold is
exceeded, mod_tile responds immediately with a 404 (and the osm.org
Javascript shows the "coming soon" logo straight away). I don't know
what the threshold is on tile.openstreetmap.org
So a fair amount of speculations - the server is busy, but not that
much more busy than it normally gets during the week, and I think it's
triggering the mod_tile overload protection.
Cheers,
Andy
[1] http://munin.openstreetmap.org/openstreetmap/tile.openstreetmap.html
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