[rrd-users] Re: rrd updates give NaN

Alex van den Bogaerdt alex at ergens.op.het.net
Mon Jul 31 16:44:58 MEST 2006


On Mon, Jul 31, 2006 at 02:23:50PM +0000, Tony Howat wrote:

> ds[calls].minimal_heartbeat = 60
> ds[calls].unknown_sec = 34
> ds[seconds].minimal_heartbeat = 60
> ds[seconds].unknown_sec = 34
> rra[0].xff = 5.0000000000e-01
> rra[1].xff = 5.0000000000e-01
> rra[2].xff = 5.0000000000e-01

Just a quick hunch:  34 out of 60 seconds is more than 0.5


> This code runs the updates from system() commands in perl. These are
> executed in a thread that sleeps, then does the updates, then sleeps
> another 30s. strace -f does show rrdtool running and apparently updating
> the file.

30 seconds, plus some unknown time, plus another 30 seconds is MORE than 60 seconds.

-- 
Alex van den Bogaerdt
http://www.vandenbogaerdt.nl/rrdtool/

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