I took a moment to use rrdtool dump and this is indeed the case. Unfortunately I'm using the precompiled rrdtool.exe on my NT machine, and I don't want to deal with rebuilding it. I'm using logformat: rrdtool in my mrtg.cfg files and I need to keep this as automated as possible. I don't see in the docs a way to change the step value with an argument to rrdtool.
Would this be a wishlist item for Tobi? Then when I have to track something very closely, like when monitoring packet drops during a test or something, I could do that. Or is there another way? -----Original Message----- From: Philip Molter [mailto:[EMAIL PROTECTED] Sent: Thursday, February 15, 2001 10:22 AM To: Mike Bernhardt Cc: [email protected] Subject: Re: [rrd-users] Revision to question on expiration On Thu, Feb 15, 2001 at 10:01:47AM -0800, Mike Bernhardt wrote: : : Sorry for replying to myself, but I need to revise my explanation of : the problem. Interval: 1. Modification time of .png and .rrd is every 1 : minute as expected. : : What happens is that the .png shows increasing white space for : 4 minutes, then fills in the white space on the 5th minute. I haven't spent : time looking into how to pull data out of the rrd file (I know...) so I : don't know if it : has 5 identical entries or if the .png isn't reflecting new data. This usually means that you've got a step interval of 5 minutes in your RRD file (which I believe is the default). You may be pumping in data every 1 minute, but RRD is only going to put in a new value every five minutes (an interpolated value from those 1 minute runs). The solution to this is to either update your RRD to store values on 1 minute steps (which will make a very large RRD file) or change your graphing end time to be ( current time - ( current time % 5 ) ). That's how RRD stores it's data, so your ending time will always be on the last RRD data step. * Philip Molter * DataFoundry.net * http://www.datafoundry.net/ * [EMAIL PROTECTED] -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
