[rrd-users] Re: first time out, ERROR: can't parse argument
thomas.erskine at sympatico.ca
Fri May 23 21:42:36 MEST 2003
At 14:16 2003-05-23, Austin Swinney wrote:
>I'm working on my-frirst-rrd. I'm creating a rrd for load percentages on APC
>MS1-4 are power strips on a single APC head. The range is 0 to 100 percent.
>The error I get is:
>ERROR: can't parse argument 'DS:MS1:GAUGE:0.5:1:100'
I envy you your hardware that you can afford to poll at least once every
half second. :-) The place you've put "0.5" is the "heartbeat". This is
how often (in seconds) you must update the RRD to avoid having unknown data
points added. I usually set it to 2*step so I can miss one update and
rrdtool will fudge it. This is a hold-over from when my polling mechanism
was too slow. The heartbeat has to be at least as large as the
step. Where you set it depends on what you want rrdtool to do when you're
not on time.
>As far as I can tell from the docs, everything is right. Thoughts?
>rrdtool create loadpercent.rrd --start `date +%s` --step 300 \
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Thomas Erskine <thomas.erskine at sympatico.ca> +1.613.591.8490
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