[rrd-users] Large-interval data is not displaying as I expected

[Herminio Gonzalez]

> As a workaround, I am hoping that if I change my update cron job to
> happen at 9:00AM local time (0:00 UTC), then things may work out.

Just wanted to follow up this thread, for the benefit of anyone
looking through the archives, by stating that the workaround did fix
the problem for me.Now my cron job runs at 9AM local time, which is
midnight UTC throughout the year.

This was the situation before I changed the cron job:
http://myhabitat.net/~hermi/rrd/denyhosts-problem.png

Five days later, the new data points are all neatly aligned on integer
boundaries:
http://myhabitat.net/~hermi/rrd/denyhosts-aligned.png

The lesson for me here is to pay attention to the normalization step,
as described very nicely in
http://www.vandenbogaerdt.nl/rrdtool/process.php

Herminio Gonzalez