[OSM-dev] Osmarender not always showing latest data

Mathieu Arnold mat at mat.cc
Mon Dec 15 09:57:01 GMT 2008

+--On 15 décembre 2008 09:41:34 +0000 80n <80n80n at gmail.com> wrote:
| Are you saying, very simply, a count of all the tags for nodes, ways and
| relations for any given timestamp?
| For example:
| 2008-12-15 08:04 = 898266982
| 2008-12-15 08:05 = 898278312
| 2008-12:15 08:06 = 898279938
| etc
| I was thinking of something with a little bit more granularity, such as
| the sum of the seconds component of each time stamp.  This would also, I
| think, be quicker to recalculate if needed.
| If the checksum was stored in a table for every minute diff update then,
| if something goes wrong, it would be easy to see when it went wrong, and
| make it easier to correct by re-running diffs from that moment.

I don't know how much time it would take on other ROMA to select count(*)
from nodes, but on mine, it's more than a few minutes, so, it could not be
done every minute :-)

It could be done every hour or so though.

Mathieu Arnold

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