[rrd-users] RES: Re: RES: Re: Graphics problem

[Hugo Rebello]

Oh great, I understand now. Thank you.
So, I need do that every time ?
I use the RRDTool together APAN and Nagios.
The APAN is OK, I can monitor ping through it. But When I try to see the
graphics I can't.
Cheers,
Hugo

-----Mensagem original-----
De: rrd-users-bounce at list.ee.ethz.ch
[mailto:rrd-users-bounce at list.ee.ethz.ch]Em nome de Zicarelli, Gabriel
Enviada em: segunda-feira, 25 de outubro de 2004 14:51
Para: rrd-users at list.ee.ethz.ch
Assunto: [rrd-users] Re: RES: Re: Graphics problem



> From: Hugo Rebello [mailto:hugo.rebello at dhl.com] 
> 
> I read this document, but I don't understand what is 
> "epochtime:data:data:data"
> I'm not sure, what I must put there.
>

The creation of the database is for storing purposes,
however if you don't put data in it...it's useless.

I assume you are gathering ping roundtrip values and 
want them to be nicely shown in a graph, right?
Any method you have for getting these values is fine,
as long as you can put them in the .RRD.

For instance here I get the value to update my db:
rrdtool update PING.rrd N:`ping -c1 192.168.0.1 | cut -d/ -f4`

Epoch refers to the number of secs since January 1, 1970.
To update you can explicitily indicate the time or can let
rrdtool to get it when updating the values: the 'N' in
this example means 'Now'.

Easy isn't it?

You can store the output and then update, or do it 
on the fly, as above.

Hope it helps.

Gabriel

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