[mrtg] Re: problems importing data into rrd

[Alex van den Bogaerdt]

Mark Rowlands wrote:

> When I attempt :
> rrdtool update /spare/monscripts/rrd/sites.rrd 9862656:2.77777777
> 
> rrdtool informs me (correctly) that this update is from before the last 
> update...How do I do disable this behaviour?

Don't disable it. Have a look at your mrtg.log file.  The last line
has a timestamp.  This is the *first* line to enter into the RRD.
The first line of your mrtg.log file should be inserted *last*.

So: reverse the order of the mrtg.log file (in memory), read the
first line, create a database starting from that time (maybe one
second before it, don't know if this is still necessary), feed the
data to rrdtool.

> I am using perl to transform
> the data....is there a perl module that may assist?

Maybe you should look at the MRTG source itself.  It does automatically
transform mrtg.log files into RRDs when you start using RRD.

cheers,
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