Sarah, many thanks for your continued support with our Nominatim installation.
I've added --index-instances 2 to the update call. The result seems that the machine is even more i/o bound than before, with no noticeable change to the cpu activity on the munin chart: https://github.com/cyclestreets/nominatim-install/issues/7 It doesn't seem to be catching up any quicker than before. Simon On 26 January 2014 14:53, Sarah Hoffmann <[email protected]> wrote: > Hi Simon, > > On Sun, Jan 26, 2014 at 09:43:23AM +0000, Simon Nuttall wrote: >> When I started the installation of a whole planet Nominatim, back in >> early December the initial planet file was already 3 weeks old. >> >> This was compounded by having an invalid: >> >> /Nominatim/settings/configuration.txt >> >> left over from a previous import run, which I did not discover until >> several weeks later. >> >> So when I fixed that Nominatim was about 6 weeks behind. >> >> It is going to take about 6 weeks to catch up because it seems to take >> almost an hour to update an hour's changeset, eg these couple of lines >> of output: >> >> 2014-01-26 09:18:42 Completed index step for 2013-12-05T13:29:02Z in >> 26.8 minutes >> 2014-01-26 09:18:42 Completed all for 2013-12-05T13:29:02Z in 45.85 minutes >> >> The machine is i/o bound. >> >> During setup.php I used --threads=2 which made things faster. >> >> Can more threads be used during update.php - eg I notice there is this >> option: >> >> --index-instances >> >> but would that make a difference? > > Using two threads will definitely make a difference although not as much as > for the import. Going much beyond two threads is not really worth it because > the > threads interfere with each other quite a bit. In any case, if your system is > live and serving queries, keep an eye on response times at busy times. Too > many > update threads might interfere there, too. > > Sarah > -- Simon Nuttall Route Master, CycleStreets.net _______________________________________________ Geocoding mailing list [email protected] https://lists.openstreetmap.org/listinfo/geocoding
