[hobbit] Sending Data from external script to an RRD - can't see graphs - only links

[Joshua Krause]

One thing I see that I made the same mistake at is in your  
hobbitgraph.cfg:

[if_load]
         FNPATTERN if_load(.*).rrd
         TITLE Network Traffic
         YAXIS Bits/second
         DEF:in (at) RRDIDX@= (at) RRDFN@:in:AVERAGE
         CDEF:inbytes (at) RRDIDX@=in (at) RRDIDX@,8,*
         DEF:out (at) RRDIDX@= (at) RRDFN@:out:AVERAGE
         CDEF:outbytes (at) RRDIDX@=out (at) RRDIDX@,8,*
         LINE1:inbytes (at) RRDIDX@# (at) COLOR@:@RRDPARAM@ In
         GPRINT:inbytes (at) RRDIDX@:LAST: %8.2lf %s (cur)
         GPRINT:inbytes (at) RRDIDX@:MAX: %8.2lf %s (max)
         GPRINT:inbytes (at) RRDIDX@:MIN: %8.2lf %s (min)
         GPRINT:inbytes (at) RRDIDX@:AVERAGE: %8.2lf %s (avg)\n
         LINE1:outbytes (at) RRDIDX@# (at) COLOR@:@RRDPARAM@ Out
         GPRINT:outbytes (at) RRDIDX@:LAST: %8.2lf %s (cur)
         GPRINT:outbytes (at) RRDIDX@:MAX: %8.2lf %s (max)
         GPRINT:outbytes (at) RRDIDX@:MIN: %8.2lf %s (avg)
         GPRINT:outbytes (at) RRDIDX@:AVERAGE: %8.2lf %s (avg)\n

you need to replace "(at)" with "@", It looks like when the post was  
made it converted all the @ to (at).  But that was my big problem.   
And I am not using the NCV function and don't think it is  to be done  
using that but could be wrong.   And my extra-rrd.pl looks like this:

#!/usr/bin/perl

# Input parameters: Hostname, testname (column), and messagefile
$HOSTNAME=$ARGV[0]; ;
$TESTNAME=$ARGV[1]; ;
$FNAME=$ARGV[2]; ;

# Read the entire files
open (FILEHANDLE,$FNAME) || die ("cant read file\n");
@input = <FILEHANDLE>;
close (FILEHANDLE);

if ( $TESTNAME eq "if_load" ) {

         # Analyze the message we got
         foreach $line (@input) {
                 if ($line =~ /(^[A-Z].*) (\d+):(\d+)$/ ) {

                         # The RRD dataset definitions
                         print "DS:in:DERIVE:600:0:U\n";
                         print "DS:out:DERIVE:600:0:U\n";

                         # The filename
                         print "if_load_$1.rrd\n";

                         # The data
                         print "$2:$3\n";
                 }
         }
}


Hope this helps you out and if you need anymore I will be glad to give  
ya what I know or have found out.

Josh

On Sep 24, 2007, at 2:13 AM, Javier Temponi wrote:

> Hello, I want to graph the load information of my routers  
> interfaces, I have been reading for several days the list, and I  
> have learned a lot but not enough yet to make this works J…
>
> This is the situation: I receive the information from devmon, and  
> execute an external script to write the rrd file. The files are  
> written but I can not see them from the hobbit page.
> I have the rrd files generated and updated but in the hobbit page I  
> only can see the links and no graph (not an empty or blank graph,  
> only the little box with the name of the link inside).
>
> I’m using devmon 0.3.0-beta2 and hobbit 4.2 with the patch all in  
> one installed.
> OS: Linux kernel 2.6.9
>
> Other graphs work fine, the default ones, for example the Conn graph.
> The information from devmon is received ok by hobbit, because I have  
> a table with the load of the interfaces that devmon sent.
>
> These are the configuration files:
>
> hobbitserver.cfg (to see the graphs in the load and trends columns):
>
> TEST2RRD="…..,if_load=ncv"
> NCV_if_load="in:GAUGE,out:GAUGE"
>
> GRAPHS="……,if_load”
>
> hobbitlaunch.cfg
>
> [rrdstatus]
>         ENVFILE /usr/local/hobbit/server/etc/hobbitserver.cfg
>         NEEDS hobbitd
>         CMD hobbitd_channel --channel=status --log=$BBSERVERLOGS/rrd- 
> status.log hobbitd_rrd --rrddir=$BBVAR/rrd --extra-script=$BBHOME/ 
> ext/extra-rrd.pl --debug --extra-tests=if_load
>
> This is the script  ext/extra-rrd.pl
>
> #!/usr/bin/perl
>
> # Input parameters: Hostname, testname (column), and messagefile
> #$HOSTNAME=$ARGV[0]; ;
> $TESTNAME=$ARGV[1]; ;
> $FNAME=$ARGV[2]; ;
> $filename="/tmp/if_log";
>
> # Read the entire files
> open (FILEHANDLE,$FNAME) || die (print "cant read file\n");
> @input = <FILEHANDLE>;
> close (FILEHANDLE);
>
> if ( $TESTNAME eq "if_load" ) {
>
>         # Analyze the message we got
>         foreach $line (@input) {
>                 if ($line =~ /(^[A-Z].*) (\d+):(\d+)$/ ) {
>
>                         # The RRD dataset definitions
>                         print "DS:in:DERIVE:600:0:U\n";
>                         print "DS:out:DERIVE:600:0:U\n";
>
>                         # The filename
>                         print "if_load_$1.rrd\n";
>
>                         # The data
>                         print "$2:$3\n";
>                 }
>         }
> }
>
>
> hobbitgraph.cfg file :
>
> [if_load]
>         FNPATTERN if_load(.*).rrd
>         TITLE Network Traffic
>         YAXIS Bits/second
>         DEF:in (at) RRDIDX@= (at) RRDFN@:in:AVERAGE
>         CDEF:inbytes (at) RRDIDX@=in (at) RRDIDX@,8,*
>         DEF:out (at) RRDIDX@= (at) RRDFN@:out:AVERAGE
>         CDEF:outbytes (at) RRDIDX@=out (at) RRDIDX@,8,*
>         LINE1:inbytes (at) RRDIDX@# (at) COLOR@:@RRDPARAM@ In
>         GPRINT:inbytes (at) RRDIDX@:LAST: %8.2lf %s (cur)
>         GPRINT:inbytes (at) RRDIDX@:MAX: %8.2lf %s (max)
>         GPRINT:inbytes (at) RRDIDX@:MIN: %8.2lf %s (min)
>         GPRINT:inbytes (at) RRDIDX@:AVERAGE: %8.2lf %s (avg)\n
>         LINE1:outbytes (at) RRDIDX@# (at) COLOR@:@RRDPARAM@ Out
>         GPRINT:outbytes (at) RRDIDX@:LAST: %8.2lf %s (cur)
>         GPRINT:outbytes (at) RRDIDX@:MAX: %8.2lf %s (max)
>         GPRINT:outbytes (at) RRDIDX@:MIN: %8.2lf %s (avg)
>         GPRINT:outbytes (at) RRDIDX@:AVERAGE: %8.2lf %s (avg)\n
>
>
> If anyone has any idea, where the problem could be or any work  
> around I’ll really appreciate.
>
> Thanks in advance
> Javier
>
>

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