Hello Folks, I understand that this topic has been posted before - but my understanding wasn't perfectly clear after reading those posts. Also I read the tutorials on the website and also those those by Alex - but I still have a doubt as to how these parameters relate / work with one another. I apologize for the double posting but I only do so in the interest of clarity. I hope other newbies like me benefit from this post.
I have created the following rrd database: rrdtool create test.rrd --start 1314270000 --step 300 --no-overwrite DS:no-signal-3-steps:GAUGE:1800:U:U RRA:AVERAGE:0:1:15 I then carry out the following updates: rrdtool update test.rrd 1314270300:1 rrdtool update test.rrd 1314270600:2 rrdtool update test.rrd 1314270900:3 rrdtool update test.rrd 1314271200:4 rrdtool update test.rrd 1314272100:7 rrdtool update test.rrd 1314272400:10 rrdtool update test.rrd 1314274800:5 I then do a fetch: rrdtool fetch test.rrd AVERAGE I expected to get the value of 5 at 1314274800 but I get NaN. I understand that RRDTool does the following before it stores values: Rates, Normalization, Consolidation. In this case my DS is a GAUGE so it is a rate - no conversion is required here. I am normalizing stuff every 300 seconds (step is 300) beginning from the start time of 1314270000. I then have a CF of AVERAGE that is averaging 1 value. So in this case, I am not really averaging anything. Can you please elaborate as to why it is so? I appreciate your time on the matter. Much obliged, - Tintin -- View this message in context: http://rrd-mailinglists.937164.n2.nabble.com/Steps-and-heartbeats-tp6727342p6727342.html Sent from the RRDtool Users Mailinglist mailing list archive at Nabble.com. _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
