[rrd-users] Re: What am I doing wrong?

Dean Takemori dtakemori at home.comtelhi.com
Tue Oct 14 23:27:59 MEST 2003

Thank you for the prompt reply.

Unfortunately, I must STILL be misunderstanding something.

My reading of the documentation suggests that the following data


with "RRA:MAX:0.9999999999:1:9999

1066089300: nan nan nan nan
1066089590: nan nan nan nan
1066089880: nan nan nan nan
[snip all nan's across the board]
1066164990: nan nan nan nan
1066165280: nan nan nan nan
1066165570: nan nan nan nan

Should have some non-nan entries, since I am basically asking to return
the MAX value in a "step" if any single value is defined.

Or am I now misunderstanding how RRD handles sparse (ie long amounts
of time relative to step between datapoints)?

On Tuesday, October 14, 2003, at 10:12 AM, Serge Maandag wrote:

>> Script output is similar to ...
>> 1060853966:10000:20:3:18
>> 1060855893:0:20:3:18
> That is an interval of 1927 seconds.
> Your DS heartbeat is 300. Hence the update is out of date and you get 
> a nan in your database.
> Be sure to read up on the rrdtool site what step and heartbeat mean.
> Serge. 

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