[rrd-users] Re: RRDtool "GMT-centric" problem?

[steve rader]

 > Or: create CDPs for every hour and update each 24 hours.  I never tried
 > this but I see no reason why it shouldn't work.  Use the appropriate
 > settings for the RRA so that it allows for a large amount of missing
 > updates and it should fill in the missing updates.
 > Ofcourse you would still have an increase in your database size.
 > 
 > Curious if you can make this work!

Well, I can, but with S. William Schulz's data, I get as much as an
11% margin of error.  Here I use a one hour step, one day heartbeat,
23 of 24 (0.958) PDPs may be missing to create a CDP (xff) and one
PDP to make a CDP:

 rrdtool create page.rrd --start 946788800 --step 3600 \
   DS:pages:GAUGE:86400:0:1000 \
   RRA:AVERAGE:0.958:1:240 

  rrdtool update page.rrd \
   946788901:75 \
   946875300:2 \
   946961700:31 \
   947048100:8 \
   947134500:31

  rrdtool fetch page.rrd AVERAGE -s 946788900 -e 947134501

Is there a better way?

later
steve
- - -
systems guy
wiscnet.net

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