[mrtg] Yearly graph loses data

[Martin Kaufmann]

Hi there!

I'm using mrtg 2.14.7-2 on Debian and everything seems to be working
fine - except for the yearly graph which is losing data. The logfile
contains all the data right back to the start while the yearly graph
only contains data for the last two months. This data loss is rolling
and seems to cut in right where the logfile changes from 2-hourly to
daily logging.

Does anyone know how to fix this?

Thanks for your help!

Regards,

Martin