Yesterday you sent me mail regarding [rrd-users] Next question: x,UN,0,IF...:
*> Since I stack lots of data on top of each other, I use the following *> CDEF to ensure that my data is either defined or zero: *> *> CDEF:xdata=data,UN,0,data,IF,8,* *> *> The problem with this is that my graphs turn out with the last point *> always at zero. This makes it look like my traffic is always diving *> towards zero! *> *> My hypothesis is that the .rrd archive returns an undefined value for *> any time since the last update. This makes sense in a pedantic sort *> of way, but when I draw the graph and see the lines diving toward zero *> at the far right, it doesn't make sense at all. *> *> Is there a way to have it both ways? I mean, have my graphs *not* *> dive toward zero, but have undefined data interpreted as zero for *> stacking purposes? yes you could use the TIME and the NOW variable in your CDEF to have a time dependant behavior ... on the developers list there has just been a discussion on the stacking of *UNKNOWN* and it has been determined that stacking unknown should be treated as if not stacking anything ... so you will not have to turn unknown into 0 anymore starting from 1.0.4 ... cheers tobi *> Dave *> *> -- *> * To unsubscribe from the rrd-users mailing list, send a message with the *> subject: unsubscribe to [EMAIL PROTECTED] *> *> -- ______ __ _ /_ __/_ / / (_) Oetiker, Timelord & SysMgr @ EE-Dept ETH-Zurich / // _ \/ _ \/ / TEL: +41(0)1-6325286 FAX:...1517 ICQ: 10419518 /_/ \.__/_.__/_/ [EMAIL PROTECTED] http://ee-staff.ethz.ch/~oetiker -- * To unsubscribe from the rrd-developers mailing list, send a message with the subject: unsubscribe to [EMAIL PROTECTED]
