Re: RPN for max of list of nodes
David Thornton <[email protected]>
| Newsgroups | gmane.comp.db.rrdtool.user |
|---|---|
| Message-ID | <CAHcykVq7EdmU+30o7DkB-O_u_A0gaevynTv1TvBh8F+JAz7j6Q@mail.gmail.com> |
you want to know what the a b c is that was the max, sorry I misread. David On Thu, Jun 25, 2015 at 5:23 PM, David Thornton <[email protected]> wrote: > first define the maxes for each host: > > https://oss.oetiker.ch/rrdtool/tut/cdeftutorial.en.html > > then you can use the "if then else" on each var. > > https://oss.oetiker.ch/rrdtool/tut/rpntutorial.en.html > > I've done this before. You write a script that has an "if then else" for > each host in sequence: > > something like this; > > DEF:a=router1.rrd:link1in:MAX > DEF:x=routerx.rrd:link1in:MAX > ... > > if a > b , a, b > if x > (x-1) , x , (x-1) > ... > > I wrote the script long ago, > and my rpn is tenuous at best :( > > and ..x can't get too big... I think I was getting seg faults at like 50 > hosts. > > David > > > On Thu, Jun 25, 2015 at 5:04 PM, Aaron Thomas Holt < > [email protected]> wrote: > >> Hi all, >> >> I currently have a legend formatted like a table like the one below: >> >> min max average >> node01 123 123 123 >> ... >> nodeNN 123 999 123 >> >> I would like a line that displays the maximum for all nodes that looks >> something like what follows: >> >> overall max: 999, node NN >> >> min max average >> node01 123 123 123 >> ... >> nodeNN 123 999 123 >> >> Looking at the RPN documentation it looks possible to find the max value >> with a CDEF, but is there a way to find the associated node as well? >> >> Thanks, >> Aaron >> >> _______________________________________________ >> 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