[rrd-users] Re: The old "illegal attempt to update" problem
rrdtool at stinkweasel.net
Tue Aug 17 14:25:19 MEST 2004
> C. Bensend said:
>> Or am I an idiot and I'm missing something fundamental? I did search
>> for this answer before emailing the list, so hopefully I didn't miss the
>> answer to this...
>> last_update = 1092712700
> that date indicates
> Mon Aug 16 20:18:20 2004
> while one of the data points your trying to input to RRD translates
> Sat Sep 27 21:59:59 2003
Yes, that is correct (and intended).
> not knowing exactly what your trying to do, I would think you
> may be able to solve the problem by re-creating the RRD and
> specifying the --start option to go back to the time when you
> want to start collecting data.
Sorry, didn't mean to omit that detail.
I am learning how to use RRD, so I'm constantly blowing away my RRD
databases and recreating them, to play with the parameters. This
script is to take a brand new database and repopulate it with the last
year's worth of historical data. Ie, bring an empty RRD up to the
current day, if you will.
> RRD won't update data points in the past as far as I know.
Ugh, you are absolutely correct - I've gone over that man page a bunch
of times, but I completely missed that. And guess what - my script
now appears to be updating the RRD just fine after adding the --start
parameter to the create script. :)
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