Clarification: Change graphing on Trends link

Ralph,

I gave your suggestion a shot today, and just when I think I am making
progress learning Linux, I get slapped in the face.  I found the
hobbitgraph.c and made the changes as you outlined below.  I then went to
the parent directory (hobbit-4.1.2p1) and ran make, but it errored out with
error:2.  I checked the mod date on the hobbitgraph.cgi file and it was
still set to the date that I originally compiled the program.  I am running
Hobbit on FC4.  Any suggestions?

Thanks,

Dave
 

-----Original Message-----
From: hobbit-return-5463-david=user-9e293dd11111@xymon.invalid [mailto:hobbit-return-5463-david=stenhouseconsulting.com at hswn.
dk] On Behalf Of Ralph Mitchell
Sent: Tuesday, January 31, 2006 2:13 AM
To: user-ae9b8668bcde@xymon.invalid
Subject: Re: [hobbit] Clarification: Change graphing on Trends link

I don't know if that could be done in a config file, but it certainly can be done by altering the source.  Take a look at hobbitd/hobbitgraph.c.  Near the top there's a bunch of defines that tell rrdtool how to select the data:

   #define HOUR_GRAPH  "e-48h"
   #define DAY_GRAPH   "e-12d"
   #define WEEK_GRAPH  "e-48d"
   #define MONTH_GRAPH "e-576d"

"e-48h" means "end-of-data minus 48 hours", which is the start of the range, the end of the range being the end of the data.  Change those numbers to whatever suits you best - i.e.  e-24h, e-7d, e-30d & e-365d.

You'll also want to look further down for blocks like this:

     if (strcmp(val, "hourly") == 0) {
                   period = HOUR_GRAPH;
                   persecs = 48*60*60;
                   gtype = strdup(val);
                   glegend = "Last 48 Hours";
     }

and fix those up.  I guess that would be:

                   persecs = 24*60*60;
and
                   glegend = "Last 24 Hours";

for the 24 hour graph.  Similarly for DAY_GRAPH, WEEK_GRAPH & MONTH_GRAPH.  Go back up to the main source directory and re-run make, then copy hobbitd/hobbitgraph.cgi over to hobbit's server/bin directory.

Seems to work fine for me - I might even keep it like this... :)

Ralph Mitchell


On 1/30/06, David Gilmore <user-70507ff7198d@xymon.invalid> wrote:

I should have been a clearer in my post here.  When clicking on the > graph in the Trends page, is there a way to change the default historical times?
Instead of 48 hrs, 12 days, 48 days, and 576 days, can the graphs be > set to
24 hrs, 7 days, 30 days, 365 days?

Thanks,

Dave