Gavin, Please see the mailing list archives from the past 5 days. Alex B (?) posted an outstanding, and brief, explanation.
Andy On Wednesday 12 November 2008 04:04:30 pm Gavin Landon wrote: > Was this a newb question and no one wants to answer, no one has ever > experienced, or no one has ever validated the data so if it's happen, > no one noticed? > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Gavin Landon > Sent: Wednesday, November 12, 2008 11:14 AM > To: [email protected] > Subject: [rrd-users] Absolute values.. > > I'm having a few problem which has interrupted my train of thought to > the point I'm starting to doubt myself. > > (Problem 1) > I've been writing a monitoring system for software we have written that > report back to us on a minute by minute bases. I'm only in the > development stages so the data is small and in one case it always > returns 1. I find the chart that's looking at this stat is in flux as > if the values are more than 1. I've deleted the RRD file then > recreated it with data I have in SQL, logging everything that goes into > RRD and I never put in anything greater than 1. Yet my chart still has > spikes at the same place up to 20. > > (Problem 2) > The answer to this one may fix problem 1.. I can't seem to find the > balance in the configuration so that the numbers on the side of the > left side of the chart match up with the data that is actually in the > RRD file. Since I'm also storing the data in SQL at the same time > it's being placed into RRD, I know I have an exact match up. However, > when I tell SQL to give me the MIN and MAX of a specific time frame, > then tell RRD to do the same, I get two different values. > > I do have 5 archives. > Min = .Steps = 1 > 24 hours = .Steps = 60 'Minutes per Hour > Week = .Steps = 1440 'Minutes per Day > Month = .Steps = 10080 'Minutes per Week > Year = .Steps = 43829 '525948.766/12 'Minutes Per Month > > I'm using Gauge when creating it since Absolute, Counter, and Derive > all seem to skew the charts as well. On my archives I'm using MAX > function because I found that Average was throwing me way off.. Since > this is a monitoring interface, I need it to be exact. > > Maybe it's me and I just don't have it configured correctly.. If so, > can someone tell me the configuration needed to show what is exactly in > RRD, because showing my clients 189 for SQL, but looking at a chart > that doesn't go over 40 is only going to prompt questions I can't > answer. > > Thanks for your time, > > Gavin > > _______________________________________________ > rrd-users mailing list > [email protected] > https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users > > _______________________________________________ > rrd-users mailing list > [email protected] > https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users -- Andy Riebs, HP Scalable Computing and Infrastructure / Linux R&D (w) [EMAIL PROTECTED] Technology for better business outcomes +1 (978) 748-0043 (Mon,Thu,Fri) +1 (508) 467-3002 (Tue,Wed) (h) [EMAIL PROTECTED] My opinions are not necessarily those of HP _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
